Ditch Witch RT80 Tractor Operator's Manual 053-1343 - PDF DOWNLOAD

RT80

Operator’s Manual

CMW®

Issue 1.3

053-1343

RT80 Operator’s Manual

Overview - 1

Overview Chapter Contents Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 2 Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Unit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Operator Orientation. . . . . . . . . . . . . . . . . . . . . . . . . 4 About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . 4 •

Bulleted Lists. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

•

Numbered Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

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RT80 Operator’s Manual

Overview - 2

Serial Number Location

Serial Number Location Record serial numbers and date of purchase in spaces provided. RT80 (1) and engine (2) serial numbers are located as shown.

Date of manufacture Date of purchase RT80 serial number Engine serial number Front attachment serial number Rear attachment serial number Trailer serial number

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RT80 Operator’s Manual

Overview - 3

Intended Use

Intended Use The RT80 is a riding trencher designed to install buried service lines of various sizes using a variety of Ditch Witch attachments.

Attachment

Max. width/diameter

Max. depth

H813 trencher

12 in (305 mm)

84 in (2.1 m)

A523 backhoe

18 in (460 mm)

93.2 in (2.4 m)

The unit is designed for operation in temperatures typically experienced in earth moving and construction work environments. Provisions may be required to operate in extreme temperatures. Contact your Ditch Witch dealer. Use in any other way is considered contrary to the intended use.

The RT80 should be used with genuine Ditch Witch chain, teeth, and sprockets. It should be operated, serviced, and repaired only by persons familiar with its particular characteristics and acquainted with the relevant safety procedures.

Equipment Modification This equipment was designed and built in accordance with applicable standards and regulations.

Modification of equipment could mean that it will no longer meet regulations and may not function properly or in accordance with the operating instructions. Modification of equipment should only be made by competent personnel possessing knowledge of applicable standards, regulations, equipment design functionality/requirements and any required specialized testing.

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RT80 Operator’s Manual

Overview - 4

Unit Components

Unit Components

1. Rollover Protective Structure (ROPS)

5. Center console

2. Rear console

6. Engine compartment

3. Right console

7. Backfill blade

4. Operator’s station

Operator Orientation 1. Front of unit

3. Rear of unit

2. Right of unit

4. Left of unit

Right and left sides of machine are determined by facing front of unit while seated at the controls.

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RT80 Operator’s Manual

Overview - 5

About This Manual

About This Manual This manual contains information for the proper use of this machine. See Operation Overview for basic operating procedures. Cross references such as “See page 50” will direct you to detailed procedures.

Bulleted Lists Bulleted lists provide helpful or important information or contain procedures that do not have to be performed in a specific order.

Numbered Lists Numbered lists contain illustration callouts or list steps that must be performed in order.

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Overview - 6

RT80 Operator’s Manual About This Manual

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RT80 Operator’s Manual

Contents - 7

Contents Overview

1

Foreword

9

Safety

11

Controls

21

Operation Overview

49

Prepare

53

Drive

59

Transport

63

Trench

73

Saw

77

Backhoe

83

Drill

89

machine serial number, information about the type of work this machine is designed to perform, basic machine components, and how to use this manual part number, revision level, and publication date of this manual, and factory contact information machine safety alerts and emergency procedures

machine controls, gauges, and indicators and how to use them

an overview for completing a job with this machine: planning, setting up, installing product, and restoring the jobsite; with cross references to detailed procedures procedures for inspecting and classifying the jobsite, planning the installation path, and preparing the jobsite for work procedures for startup, cold start, driving, and shutdown

procedures for lifting, hauling, and towing

procedures for trenching

procedures for sawing

procedures for digging with backhoe

procedures for drilling

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Contents - 8

RT80 Operator’s Manual

Systems and Equipment

97

Complete the Job

103

Service

105

Specifications

137

Support

153

Service Record

157

chain, teeth, sprockets, and optional equipment

procedures for backfilling and restoring the jobsite and rinsing and storing equipment service intervals and instructions for this machine including lubrication, replacement of wear items, and basic maintenance machine specifications including weights, measurements, power ratings, and fluid capacities the warranty policy for this machine, and procedures for obtaining warranty consideration and training a record of major service performed on the machine

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RT80 Operator’s Manual

Foreword - 9

Foreword This manual is an important part of your equipment. It provides safety information and operation instructions to help you use and maintain your Ditch Witch equipment.

Read this manual before using your equipment. Keep it with the equipment at all times for future reference.

If you sell your equipment, be sure to give this manual to the new owner.

If you need a replacement copy, contact your Ditch Witch dealer. If you need assistance in locating a dealer, visit our website at www.ditchwitch.com or write to the following address: The Charles Machine Works, Inc. Attn: Marketing Department PO Box 66 Perry, OK 73077-0066 USA The descriptions and specifications in this manual are subject to change without notice. The Charles Machine Works, Inc. reserves the right to improve equipment. Some product improvements may have taken place after this manual was published. For the latest information on Ditch Witch equipment, see your Ditch Witch dealer.

Thank you for buying and using Ditch Witch equipment.

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RT80 Operator’s Manual

Foreword - 10

RT80 Operator’s Manual Issue number 1.3 Part number 053-1343 Copyright 2009

by The Charles Machine Works, Inc.

, Ditch Witch, CMW, AutoCrowd, Modularmatic, Jet Trac, Roto Witch, Subsite, Fluid Miser, Perma-Soil, Power Pipe, Super Witch, Super Witch II, Pierce Airrow, The Underground, and The Underground Authority Worldwide are registered trademarks of The Charles Machine Works, Inc.

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RT80 Operator’s Manual

Safety - 11

Safety Chapter Contents Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Safety Alert Classifications . . . . . . . . . . . . . . . . . . 13 Safety Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Emergency Procedures . . . . . . . . . . . . . . . . . . . . . 17 •

Electric Strike Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

•

If an Electric Line is Damaged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

•

If a Gas Line is Damaged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

•

If a Fiber Optic Cable is Damaged . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

•

If Machine Catches on Fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

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Safety - 12

RT80 Operator’s Manual Guidelines

Guidelines Follow these guidelines before operating any jobsite equipment: •

Complete proper training and read operator’s manual before using equipment.

•

Contact your local One-Call (811 in USA) or the One-Call referral number (888-258-0808 in USA and Canada) to have underground utilities located before digging. Also contact any utilities that do not participate in the One-Call service.

•

Classify jobsite based on its hazards and use correct tools and machinery, safety equipment, and work methods for jobsite.

•

Mark jobsite clearly and keep spectators away.

•

Wear personal protective equipment.

•

Review jobsite hazards, safety and emergency procedures, and individual responsibilities with all personnel before work begins. Safety videos are available from your Ditch Witch dealer.

•

Replace missing or damaged safety shields and safety signs.

•

Use equipment carefully. Stop operation and investigate anything that does not look or feel right.

•

Do not operate unit where flammable gas may be present.

•

Contact your Ditch Witch dealer if you have any question about operation, maintenance, or equipment use.

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RT80 Operator’s Manual

Safety - 13

Safety Alert Classifications

Safety Alert Classifications These classifications and the icons defined on the following pages work together to alert you to situations which could be harmful to you, jobsite bystanders or your equipment. When you see these words and icons in the book or on the machine, carefully read and follow all instructions. YOUR SAFETY IS AT STAKE.

Watch for the three safety alert levels: DANGER, WARNING and CAUTION. Learn what each level means.

serious injury.

serious injury.

moderate injury.

indicates an imminently hazardous situation which, if not avoided, will result in death or

indicates a potentially hazardous situation which, if not avoided, could result in death or

indicates a potentially hazardous situation which, if not avoided, may result in minor or

Watch for two other words: NOTICE and IMPORTANT. NOTICE can keep you from doing something that might damage the machine or someone's property. It can also alert you against unsafe practices.

IMPORTANT can help you do a better job or make your job easier in some way.

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RT80 Operator’s Manual

Safety - 14

Safety Alerts

Safety Alerts away.

Moving digging teeth will kill you or cut off arm or leg. Stay

Turning shaft will kill you or crush arm or leg. Stay away.

Electric shock. Contacting electric lines will cause death or serious injury.

Know location of lines and stay away.

Deadly gases. Lack of oxygen or presence of gas will cause sickness or death. Provide ventilation.

Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment.

Crushing weight could cause death or serious injury. Use proper procedures and equipment or stay away.

Moving parts could cut off hand or foot. Stay away.

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RT80 Operator’s Manual

Safety - 15

Safety Alerts Explosion possible. Serious injury or equipment damage could occur.

Follow directions carefully.

Incorrect procedures could result in death, injury, or property damage.

Learn to use equipment correctly.

Fall possible. Riders can fall from machine and be injured or killed. Only operator is allowed on machine.

Rollover possible. If machine rolls over, you could be thrown from seat and killed or crushed. Wear seat belt.

Improper control function could cause death or serious injury. If control does not work as described in instructions, stop machine and have it serviced.

Looking into fiber optic cable could result in permanent vision damage. Do not look into ends of fiber optic or unidentified cable.

Pressurized fluid or air could pierce skin and cause injury or death. Stay away.

Runaway possible. Machine could run over you or others. Learn how to use all controls. Start and operate only from operator’s position.

Fire or explosion possible. Fumes could ignite and cause burns. No smoking, no flame, no spark.

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RT80 Operator’s Manual

Safety - 16

Safety Alerts Moving traffic - hazardous situation. Death or serious injury could result.

Avoid moving vehicles, wear high visibility clothing, post appropriate warning signs.

Hot pressurized cooling system fluid could cause serious burns. Allow to cool before servicing.

Flying objects may cause injury. Wear hard hat and safety glasses.

Hot parts may cause burns. Do not touch until cool.

protection.

Exposure to high noise levels may cause hearing loss. Wear hearing

Fall possible. Slips or trips may result in injury. Keep area clean.

Battery acid may cause burns. Avoid contact.

Improper handling or use of chemicals may result in illness, injury, or equipment damage. Follow instructions on labels and in material safety data sheets (MSDS).

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RT80 Operator’s Manual

Safety - 17

Emergency Procedures

Emergency Procedures Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment.

Before operating any equipment, review emergency procedures and check that all safety precautions have been taken.

EMERGENCY SHUTDOWN - Turn ignition switch to stop position or push remote engine stop button (if equipped).

Electric Strike Description Electric shock. Contacting electric lines will cause death or serious injury.

Know location of lines and stay away.

When working near electric cables, remember the following: •

Electricity follows all paths to ground, not just path of least resistance.

•

Pipes, hoses, and cables will conduct electricity back to all equipment.

•

Low voltage current can injure or kill. Many work-related electrocutions result from contact with less than 440 volts.

Most electric strikes are not noticeable, but indications of a strike include: •

power outage

•

smoke

•

explosion

•

popping noises

•

arcing electricity

If any of these occur, assume an electric strike has occurred.

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Safety - 18

RT80 Operator’s Manual Emergency Procedures

If an Electric Line is Damaged If you suspect an electric line has been damaged and you are on tractor, DO NOT MOVE. Remain on tractor and take the following actions. The order and degree of action will depend upon the situation.

•

Warn people nearby that an electric strike has occurred. Instruct them to leave the area and contact utility.

•

Raise attachments and drive from immediate area.

•

Contact utility company to shut off power.

•

Do not return to jobsite or allow anyone into area until given permission by utility company.

If you suspect an electric line has been damaged and you are off tractor, DO NOT TOUCH TRACTOR. Take the following actions. The order and degree of action will depend upon the situation.

•

LEAVE AREA. The ground surface may be electrified, so take small steps with feet close together to reduce the hazard of being shocked from one foot to the other. For more information, contact your Ditch Witch dealer.

•

Contact utility company to shut off power.

•

Do not return to jobsite or allow anyone into area until given permission by utility company.

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RT80 Operator’s Manual

Safety - 19

Emergency Procedures

If a Gas Line is Damaged Fire or explosion possible. Fumes could ignite and cause burns. No smoking, no flame, no spark.

Explosion possible. Serious injury or equipment damage could occur.

Follow directions carefully.

If you suspect a gas line has been damaged, take the following actions. The order and degree of action will depend on the situation.

•

Immediately shut off engine(s), if this can be done safely and quickly.

•

Remove any ignition source(s), if this can be done safely and quickly.

•

Warn others that a gas line has been cut and that they should leave the area.

•

Leave jobsite as quickly as possible.

•

Immediately call your local emergency phone number and utility company.

•

If jobsite is along street, stop traffic from driving near jobsite.

•

Do not return to jobsite until given permission by emergency personnel and utility company.

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Safety - 20

RT80 Operator’s Manual Emergency Procedures

If a Fiber Optic Cable is Damaged Do not look into cut ends of fiber optic or unidentified cable. Vision damage can occur.

If Machine Catches on Fire Perform emergency shutdown procedure and then take the following actions. The order and degree of action will depend on the situation.

•

Immediately move battery disconnect switch (if equipped) to disconnect position.

•

If fire is small and fire extinguisher is available, attempt to extinguish fire.

•

If fire cannot be extinguished, leave area as quickly as possible and contact emergency personnel.

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RT80 Operator’s Manual

Controls - 21

Controls Chapter Contents Center Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 •

Gauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

•

Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

•

Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

Right Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Seat Deck. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Rear Console. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 •

Optional Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

•

Trencher Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

•

Saw Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Backhoe Console . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

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RT80 Operator’s Manual

Controls - 22

Center Console

Center Console Gauges

1. Voltmeter

4. Engine oil pressure gauge

2. Tachometer/hourmeter

5. Fuel gauge

3. Engine temperature gauge

Item

Description

Notes

1. Voltmeter

Displays system voltage.

Should show 12-14V with engine running.

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RT80 Operator’s Manual

Controls - 23

Center Console Item

Description

Notes

2. Tachometer/Hourmeter

Displays engine speed and records engine operating time in hours.

Use engine operating times to schedule service.

3. Engine temperature gauge

Displays engine temperature.

Normal temperature is 190°-230° F (90°-110° C).

4. Engine oil pressure gauge

5. Fuel gauge

Engine temperature indicator will light if temperature rises above 230° F (110° C).

Displays engine oil pressure.

Indicator will light if pressure falls below 8-12 psi (55-82 kPa).

Displays fuel level in tank.

If temperature is high: •

Turn off engine and let it cool.

•

Check for low engine coolant level, seal damage, or leaks.

•

Check radiator for dirt and debris.

Normal operating pressure is 15-50 psi (103-345 kPa).

If pressure is low: •

Check oil level.

•

If pressure is still low, consult engine manual.

Use only #2 diesel fuel.

NOTICE: Use low sulfur or ultra low sulfur fuel only.

Fuel tank holds 30 gal (136 L).

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RT80 Operator’s Manual

Controls - 24

Center Console

Indicators

1. Operator presence indicator

7. Low speed indicator

2. Attachment speed/direction indicator

8. High speed indicator

3. Ground drive indicator

9. Shift alert indicator

4. Cruise control indicator

10. Cold start wait indicator

5. Hydraulic fluid temperature indicator

11. Console temperature indicator

6. Hydraulic filter restriction indicator

12. Parking brake indicator

Item

Description

Notes

1. Operator presence indicator

Lights when operator is in seat.

IMPORTANT: This indicator is part of the start interlock system. All three start interlock indicators must be on to start engine.

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RT80 Operator’s Manual

Controls - 25

Center Console Item

Description

Notes

2. Attachment speed/ direction indicator

Lights when attachment speed/direction control is in neutral.

IMPORTANT: This indicator is part of the start interlock system. All three start interlock indicators must be on to start engine.

3. Ground drive indicator

Light when ground drive hand and foot controls are in neutral.

IMPORTANT: This indicator is part of the start interlock system. All three start interlock indicators must be on to start engine.

4. Cruise control indicator

Lights when cruise control is operating.

See “Cruise Control” on page 98.

Flashes when an electrical error is detected. Contact your Ditch Witch dealer.

5. Hydraulic fluid temperature indicator

Lights and alarm sounds if hydraulic fluid overheats.

•

Turn off engine and let it cool.

•

Check hydraulic fluid level.

•

Check front of hydraulic fluid cooler for debris.

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RT80 Operator’s Manual

Controls - 26

Center Console Item

Description

Notes

6. Hydraulic filter restriction indicator

Lights when hydraulic filter is restricted.

When indicator lights, change filter.

May also light in cold weather.

Run tractor at low engine speed until hydraulic fluid warms. Indicator will turn off after hydraulic fluid warms.

7. High speed indicator

Lights when transmission is in high.

8. Low speed indicator

Lights when transmission is in low.

9. Shift alert indicator

Lights and alarm sounds when transmission is not fully in high or low gear.

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If shift does not complete: •

Return ground drive hand control and foot pedal to neutral.

•

Press opposite side of transmission shift control, then try to shift again.

•

If shift still does not complete, move tractor slightly forward or backward, return ground drive hand control and foot pedal to neutral, and shift again.

RT80 Operator’s Manual

Controls - 27

Center Console Item

Description

Notes

10. Cold start wait indicator

Lights when intake air preheater is operating.

See page 61 for cold start instructions.

Wait until lamp goes off before starting engine.

11. Console temperature indicator

12. Parking brake indicator

Lights and alarm sounds if the console temperature becomes to warm.

IMPORTANT: If indicator lights, •

Turn off engine and allow to cool.

•

Verify that console cooling fan is operating correctly.

Lights when parking brake is engaged.

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RT80 Operator’s Manual

Controls - 28

Center Console

Controls

1. Reel carrier control*

6. Hydraulic ground drive motor speed control

2. Horn

7. Transmission gearbox speed control

3. Drilling attachment control*

8. Auxiliary outlet

4. Ignition switch 5. Ground drive foot control

*optional

Item

Description

1. Reel carrier control

To raise, press top.

To lower, press bottom.

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Notes

RT80 Operator’s Manual

Controls - 29

Center Console Item

Description

2. Horn

To sound horn, press.

3. Drilling attachment control

To rotate clockwise, press top.

To rotate counterclockwise, press bottom.

Switch returns to neutral when released.

Notes

IMPORTANT: Always rotate clockwise during drilling and backreaming. Rotate counterclockwise only to dislodge a dry bore bit or reamer that has seized in the bore hole.

For more information about drilling attachment, see page 89.

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4. Ignition switch

To start engine, insert key and turn clockwise.

To stop engine, turn counterclockwise.

5. Ground drive foot control

IMPORTANT: If engine does not start on first attempt, check that all interlock requirements have been met, return switch to STOP, and try again.

To move tractor forward, push top of pedal.

To move tractor backward, push bottom of pedal.

To increase speed in either direction, push pedal farther from center.

To stop, release pedal.

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RT80 Operator’s Manual

Controls - 30

Center Console Item

Description

Notes

6. Hydraulic ground drive motor speed control

To shift into high, press and hold top. High speed indicator will light.

IMPORTANT: This control will shift ground drive speed with tractor in motion. Expect a sudden change in speed.

H L

To shift into low, press and hold bottom. Low speed indicator will light.

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7. Transmission gearbox speed control

H L

To shift into high, press and hold top. High speed indicator will light.

NOTICE: Ensure that both ground drive hand and foot controls are in neutral before shifting.

To shift into low, press and hold bottom. Low speed indicator will light.

If shift does not complete: •

Return ground drive hand control and foot pedal to neutral.

•

Press opposite side of switch, then try to shift again.

•

If shift still does not complete, move tractor slightly forward or backward, return ground drive hand control and foot pedal to neutral, and shift again.

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8. Auxiliary outlet

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Provides power for other equipment.

Power output is 12V, 5A.

RT80 Operator’s Manual

Controls - 31

Right Console

Right Console

1. Work light switch*

5. Rear steer control*

2. Backfill blade control

6. Throttle

3. Differential lock switch*

7. Rear steer indicator*

4. Backfill blade angle control

*optional

Item

Description

1. Work light switch

To turn on, press top.

Notes

To turn off, press bottom.

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RT80 Operator’s Manual

Controls - 32

Right Console Item

Description

2. Backfill blade control

To lower blade, move forward.

To put blade in float, move fully forward.

To raise blade, move backward.

To tilt right side of blade down, move right.

To tilt left side of blade down, move left.

3. Differential lock switch

To lock differential, press top.

To unlock differential, press bottom.

4. Backfill blade angle control

To angle blade right, push.

5. Rear steer control

To turn rear wheels right, push until wheels reach desired position, then release.

To angle blade left, pull.

To turn rear wheels left, pull until wheels reach desired position, then release.

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Notes

RT80 Operator’s Manual

Controls - 33

Right Console Item

Description

6. Throttle

To increase engine speed, push.

Notes

To decrease engine speed, pull.

7. Rear steer indicator

Displays position of rear wheels.

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RT80 Operator’s Manual

Controls - 34

Seat Deck

Seat Deck

1. Ground drive hand control

2. Attachment speed/direction control

Item

Description

Notes

1. Ground drive hand control

To go forward, push.

Lift the lever release on the control lever to unlock the control lever.

To go backward, pull.

To go faster in either direction, move farther from neutral.

To stop, return to center.

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RT80 Operator’s Manual

Controls - 35

Seat Deck Item

Description

Notes

2. Attachment speed/ direction control

To rotate attachment forward push.

Lift the lever release on the control lever to unlock the control lever

To rotate attachment backward, pull.

To go faster in either direction, move farther from center.

To stop attachment rotation move to neutral.

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RT80 Operator’s Manual

Controls - 36

Seat

Seat

1. Seat belt

3. Seat pivot control

2. Seat height adjustment

4. Seat slide control

Item

Description

1. Seat belt

To fasten, insert latch into buckle. Adjust until seat belt is low and tight.

To release, lift top of buckle.

2. Seat height adjustment

To lock seat height, turn clockwise.

To unlock seat height, turn counterclockwise.

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Notes

RT80 Operator’s Manual

Controls - 37

Seat Item

Description

Notes

3. Seat pivot control

To pivot seat, lift.

Seat pivots only to the right. Seat locks at various positions between 0° and 90°.

To lock seat in place, release.

IMPORTANT: Drive tractor with operator’s seat facing front. Operate rear attachments with seat pivoted.

4. Seat slide control

To slide seat forward or backward, pull or push left, then adjust seat.

To lock seat in place, release.

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RT80 Operator’s Manual

Controls - 38

Rear Console

Rear Console Optional Controls

1. Cruise control selector

3. Trench Depth Meter

2. Cruise control rpm control Item

Description

Notes

1. Cruise control selector

To turn on, press right.

Turn on cruise control only when:

To turn off, press left.

•

transmission gearbox speed control is in low

•

ground drive hand and foot controls are in neutral

For more information about cruise control, see page 98.

2. Cruise control rpm control

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Sets target engine speed for automatic cruise control feature.

IMPORTANT: For more information about cruise control, see page 98.

To increase target engine speed, turn clockwise.

This typically decreases ground drive speed temporarily.

To decrease target engine speed, turn counterclockwise.

This typically increases ground drive speed temporarily.

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Controls - 39

Rear Console Item

Description

Notes

3. Trench Depth Meter

Measures and records trench depth and length.

For more information, see page 107.

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RT80 Operator’s Manual

Controls - 40

Rear Console

Trencher Controls

1. Trencher slide control*

2. Boom lift control *optional

Item

Description

1. Trencher slide control

To slide trencher right, push.

To slide trencher left, pull.

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2. Boom lift control

To lower, push.

To raise, pull.

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Notes

RT80 Operator’s Manual

Controls - 41

Rear Console

Saw Controls

1. Trench cleaner control*

3. Saw lift control

2. Saw slide control

*optional

Item

Description

Notes

1. Trench cleaner control

To lower trench cleaner, push.

Trench cleaner is optional.

To raise trench cleaner, pull.

2. Saw slide control

To slide saw right, push.

To slide saw to center, pull.

3. Saw lift control

NOTICE: Do not slide saw when saw is in the ground.

To lower, push.

To raise, pull.

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RT80 Operator’s Manual

Controls - 42

Backhoe Console

Backhoe Console

1. Boom/Swing control

7. Remote throttle

2. Remote backfill blade control

8. Right stabilizer control

3. Work light switch*

9. Swing lock control

4. Remote ground drive control

10. Left stabilizer control

5. Bucket/Dipper control

11. Remote engine stop switch

6. Stow lock control

*optional

Item

Description

Notes

1. Boom/Swing control

To swing boom left, move left.

Control can perform more than one action at a time. By “feathering” the control, operator can combine backhoe operations.

To swing boom right, move right.

To raise boom, pull.

To lower boom, push. c00ic212h.eps

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NOTICE: Do not operate with backhoe in the stowed (upright) position. Component failure could occur.

RT80 Operator’s Manual

Controls - 43

Backhoe Console Item

Description

2. Remote backfill blade control

To lower, press top.

Notes

To raise, press bottom.

c00ic210h.eps

3. Work light switch

To turn on, press right.

To turn off, press left.

4. Remote ground drive control

To move tractor forward, press top.

To move tractor backward, press bottom.

NOTICE: •

Ensure that backfill blade and stabilizers are raised before operating this control.

•

Do not move more than 30’ (10 m) at a time.

c00ic216h.eps

5. Bucket/Dipper control

To open bucket, move right.

To close bucket, move left.

To move dipper in, pull.

Control can perform more than one action at a time. By “feathering” the control, operator can combine backhoe operations.

To move dipper out, push. c00ic213h.eps

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RT80 Operator’s Manual

Controls - 44

Backhoe Console Item

Description

Notes

6. Stow lock control

To lock:

Use this control to lock boom in the up position.

•

Raise boom fully.

•

Pull stow lock handle.

•

Lower boom slightly to engage lock.

NOTICE: Always lock boom during transport.

To unlock:

7. Remote throttle

•

Raise boom slightly.

•

Push stow lock handle to release lock.

To increase engine speed, turn counterclockwise.

To decrease engine speed, turn clockwise.

To lock, push button, pull up, then release button.

To unlock, push button, then push down.

8. Right stabilizer control

To lower, press right.

To raise, press left.

9. Swing lock control

To lock, push down and into hook.

To unlock, pull up and into hook.

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Backhoe can be locked in several swing positions. If lock will not engage, swing backhoe slightly left or right until lock engages.

RT80 Operator’s Manual

Controls - 45

Backhoe Console Item

Description

10. Left stabilizer control

To lower, press left.

Notes

To raise, press right.

c00ic211h.eps

11. Remote engine stop switch

Stops engine immediately.

IMPORTANT: •

Except in an emergency, move throttle to idle before using stop switch.

•

For normal engine shutdown, use ignition switch.

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RT80 Operator’s Manual

Controls - 46

Engine

Engine

1. Air filter restriction indicator

2. Battery disconnect switch* *optional

Item

Description

Notes

1. Air filter restriction indicator

When yellow band reaches red line, change air filter.

For more information, see “Change Intake Air Filter” on page 142.

Reset after replacing air filter.

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RT80 Operator’s Manual

Controls - 47

Engine Item

Description

2. Battery disconnect switch

To disconnect, move switch so that indicator points left.

Notes

To connect, move switch so that indicator points right.

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Controls - 48

RT80 Operator’s Manual Engine

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RT80 Operator’s Manual

Operation Overview - 49

Operation Overview Chapter Contents Planning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Trenching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Sawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Drilling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Digging with Backhoe . . . . . . . . . . . . . . . . . . . . . . 52 Leaving Jobsite. . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

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Operation Overview - 50

RT80 Operator’s Manual Planning

Planning 1. Gather information about jobsite. See page 54.

2. Inspect jobsite. See page 55.

3. Classify jobsite. See page 56.

4. Select chain and teeth to match your soil type, if necessary. See page 99.

5. Check supplies and prepare equipment. See page 58.

6. Haul equipment to jobsite. See page 69.

Trenching 1. Start unit. See page 60.

2. Position tractor and controls. See page 75.

3. Begin trenching. See page 75.

4. Engage optional cruise control if desired. See page 98.

5. Engage optional Trench Depth Meter if desired. See page 99.

6. Complete the installation. See page 75.

7. Backfill the trench. See page 104.

8. Shut down tractor. See page 62.

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RT80 Operator’s Manual

Operation Overview - 51

Sawing

Sawing 1. Start unit. See page 60.

2. Position tractor and controls. See page 78.

3. Begin sawing. See page 81.

4. Complete the installation. See page 75.

5. Backfill the trench. See page 104.

6. Shut down tractor. See page 62.

Drilling 1. Start unit. See page 60.

2. Dig approach trench and target trench. See page 91.

3. Assemble drill string and position tractor. See page 92.

4. Begin drilling. See page 93.

5. Use drill string guide as needed. See page 94.

6. Add rod. See page 95.

7. Backream. See page 95.

8. Shut down tractor. See page 62.

9. Disassemble joints. See page 96.

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Operation Overview - 52

RT80 Operator’s Manual Digging with Backhoe

Digging with Backhoe 1. Start unit. See page 60.

2. Set stabilizers and unstow backhoe. See page 84.

3. Excavate. See page 85.

4. Stow backhoe properly. See page 86.

5. Shut down tractor. See page 62.

Leaving Jobsite 1. Backfill if necessary. See page 104.

2. Rinse equipment. See page 104.

3. Stow tools. See page 104.

4. Haul equipment away from jobsite. See page 69.

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RT80 Operator’s Manual

Prepare - 53

Prepare Chapter Contents Gather Information . . . . . . . . . . . . . . . . . . . . . . . . . 54 •

Review Job Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

•

Notify One-Call Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

•

Arrange for Traffic Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

•

Plan for Emergency Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

Inspect Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 •

Identify Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Classify Jobsite. . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 •

Inspect Jobsite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

•

Select a Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

•

Apply Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

Check Supplies and Prepare Equipment . . . . . . . 58 •

Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

•

Fluid Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

•

Condition and Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

•

Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

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Prepare - 54

RT80 Operator’s Manual Gather Information

Gather Information A successful job begins before you dig. The first step in planning is reviewing information already available about the job and jobsite.

Review Job Plan Review blueprints or other plans. Check for information about existing or planned structures, elevations, or proposed work that may be taking place at the same time.

Notify One-Call Services Contact your local One-Call (811 in USA) or the One-Call referral number (888-258-0808 in USA and Canada) to have underground utilities located before digging. Also contact any utilities that do not participate in the One-Call service.

Arrange for Traffic Control If working near a road or other traffic area, contact local authorities about safety procedures and regulations.

Plan for Emergency Services Have the telephone numbers for local emergency and medical facilities on hand. Check that you will have access to a telephone.

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RT80 Operator’s Manual

Prepare - 55

Inspect Site

Inspect Site Inspect jobsite before transporting equipment. Check for the following: •

changes in elevation such as hills or other open trenches

•

obstacles such as buildings, railroad crossings, or streams

•

signs of utilities (See “Inspect Jobsite” on page 56.)

•

traffic

•

access

•

soil type and condition

Identify Hazards Identify safety hazards and classify jobsite. See “Classify Jobsite” on page 56.

Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment.

NOTICE: •

Wear personal protective equipment including hard hat, safety eye wear, and hearing protection.

•

Do not wear jewelry or loose clothing.

•

Notify One-Call and companies which do not subscribe to One-Call.

•

Comply with all utility notification regulations before digging or drilling.

•

Verify location of previously marked underground hazards.

•

Mark jobsite clearly and keep spectators away.

Remember, jobsite is classified by hazards in place -- not by line being installed.

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Prepare - 56

RT80 Operator’s Manual Classify Jobsite

Classify Jobsite Inspect Jobsite •

Follow U.S. Department of Labor regulations on excavating and trenching (Part 1926, Subpart P) and other similar regulations.

•

Contact your local One-Call (811 in USA) or the One-Call referral number (888-258-0808 in USA and Canada) to have underground utilities located before digging. Also contact any utilities that do not participate in the One-Call service.

•

Inspect jobsite and perimeter for evidence of underground hazards, such as: – “buried utility” notices – utility facilities without overhead lines – gas or water meters – junction boxes – drop boxes – light poles – manhole covers – sunken ground

•

Have an experienced locating equipment operator sweep area within 20 feet (6 m) to each side of trench path. Verify previously marked line and cable locations.

•

Mark location of all buried utilities and obstructions.

•

Classify jobsite.

Select a Classification Jobsites are classified according to underground hazards present.

If working . . .

then classify jobsite as . . .

within 10’ (3 m) of a buried electric line

electric

within 10’ (3 m) of a natural gas line

natural gas

in sand, granite, or concrete which is capable of producing crystalline silica (quartz) dust

crystalline silica (quartz) dust

within 10’ (3 m) of any other hazard

other

NOTICE: If you have any doubt about jobsite classification, or if jobsite might contain unmarked hazards, take steps outlined previously to identify hazards and classify jobsite before working.

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RT80 Operator’s Manual

Prepare - 57

Classify Jobsite

Apply Precautions Once classified, precautions appropriate for jobsite must be taken.

Electric Jobsite Precautions Use one or both of these methods.

•

Expose line by careful hand digging or soft excavation.

•

Have service shut down while work is in progress. Have electric company test lines before returning them to service.

Natural Gas Jobsite Precautions In addition to positioning equipment upwind from gas lines, use one or both of these methods.

•

Expose lines by careful hand digging or soft excavation.

•

Have gas shut off while work is in progress. Have gas company test lines before returning them to service.

Crystalline Silica (Quartz) Dust Precautions Follow OSHA or other guidelines for exposure to crystalline silica when trenching, sawing or drilling through material that might produce dust containing crystalline silica (quartz).

Other Jobsite Precautions You may need to use different methods to safely avoid other underground hazards. Talk with those knowledgeable about hazards present at each site to determine which precautions should be taken or if job should be attempted.

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Prepare - 58

RT80 Operator’s Manual Check Supplies and Prepare Equipment

Check Supplies and Prepare Equipment Supplies •

fuel

•

keys

•

personal protective equipment, such as hard hat and safety glasses

Fluid Levels •

fuel

•

hydraulic fluid

•

battery charge

•

engine oil

•

brake fluid

Condition and Function •

digging chain and teeth

•

fan elts b

•

light bulbs

•

filters (air, oil, hydraulic)

•

tires

•

pumps and motors

•

hoses and valves

•

signs, guards, and shields

Accessories Fire Extinguisher If required, mount a fire extinguisher near the power unit but away from possible points of ignition. The fire extinguisher should always be classified for both oil and electric fires. It should meet legal and regulatory requirements.

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RT80 Operator’s Manual

Drive - 59

Drive Chapter Contents Start Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Shut Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

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RT80 Operator’s Manual

Drive - 60

Start Unit

Start Unit Before operating tractor, read engine manufacturer’s starting and operating instructions. Follow instructions for new engine break-in.

Runaway possible. Machine could run over you or others. Learn how to use all controls. Start and operate only from operator’s position.

Incorrect procedures could result in death, injury, or property damage.

Learn to use equipment correctly.

NOTICE: •

Read operator’s manual before operating equipment. Follow instructions carefully. Contact Ditch Witch dealership for operation information or demonstration.

•

Wear hard hat, safety glasses, and other protective equipment required by job. Do not wear jewelry or loose clothing that can catch on controls.

Rollover possible. If machine rolls over, you could be thrown from seat and killed or crushed. Wear seat belt.

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RT80 Operator’s Manual

Drive - 61

Start Unit 1. Fasten and adjust seatbelt.

2. Check that ground drive hand control, foot pedal, and attachment speed/direction control are in neutral.

IMPORTANT: The start interlock safety system requires three conditions to start the unit: •

operator is seated

•

ground drive hand control and foot pedal are in neutral

•

attachment speed/direction control is in neutral

See page 24 for start interlock indicator information.

3. Move throttle to idle.

4. Turn ignition switch to the run position (key on, engine off). Cold start wait indicator will light.

5. When cold start wait indicator goes off, turn ignition switch all the way clockwise to start tractor.

Warning alarm will sound. Indicators will light.

•

If engine does not crank, check start interlock system.

•

If engine turns but does not start within 10 seconds, allow starter to cool before trying to start again.

Improper control function could cause death or serious injury. If control does not work as described in instructions, stop machine and have it serviced.

NOTICE: •

If warning alarm does not sound, have machine serviced.

•

Machine will not start if start interlock requirements are not met. See page 24 for start interlock indicator information.

6. Run engine at half-throttle or less for five minutes before operating tractor. During warmup, check that all controls work properly.

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RT80 Operator’s Manual

Drive - 62

Drive

Drive EMERGENCY SHUTDOWN: Turn ignition switch to STOP. 1. Turn on lights as needed.

2. Raise backfill blade and all attachments.

3. Switch transmission speed to high.

4. Adjust throttle.

5. Move ground drive hand control to forward or reverse, or press upper or lower part of foot pedal.

The ground drive foot pedal and the ground drive hand control can override each other. Use the override feature when trenching or sawing.

•

When driving or backfilling, use only the foot pedal to control speed and direction.

•

When trenching or sawing, use hand control to set digging travel speed and use the foot pedal to make temporary speed adjustments to account for a change in digging conditions. For example, if digging conditions toughen for a short distance, press the lower part of foot pedal to slow digging speed. When original digging condition resumes, release foot pedal to return to original speed.

Moving traffic – hazardous situation. Death or serious injury could result.

Avoid moving vehicles, wear high visibility clothing, post appropriate warning signs.

NOTICE: •

Drive carefully in congested areas. Know machine’s clearance and turning radius.

•

Keep attachments low when operating on slope. Drive slowly and cautiously.

Shut Down 1. When job is complete, move ground drive control to neutral.

2. Lower all attachments to ground.

3. Move throttle to idle for 3 minutes to cool.

4. Turn ignition switch to STOP. If leaving machine unattended, remove key.

5. For maintenance or long-term storage, disconnect the battery; or turn battery disconnect switch, if equipped, to the disconnect position.

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RT80 Operator’s Manual

Transport - 63

Transport Chapter Contents Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 •

Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

•

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

Tie Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 •

Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

•

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

Haul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 •

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

Tow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 •

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

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RT80 Operator’s Manual

Transport - 64

Lift

Lift Crushing weight. If load falls or moves it could kill or crush you. Use proper procedures and equipment or stay away.

Incorrect procedures could result in death, injury, or property damage.

Learn to use equipment correctly.

Points Lift points are identified by decals. Lifting at other points is unsafe and can damage machinery.

Procedure Tractor Use a crane capable of supporting the equipment's size and weight. See “Specifications” on page 137.

Use indicated lift points. Do not attempt to lift tractor with attachments installed.

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RT80 Operator’s Manual

Transport - 65

Lift H813 Trencher Use crane capable of supporting the equipment's size and weight. See page 143 or measure and weigh equipment before lifting.

NOTICE: Do not attempt to lift tractor with attachments installed.

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Transport - 66

RT80 Operator’s Manual Lift

H540 Saw Use crane capable of supporting the equipment's size and weight. See page 145 or measure and weigh equipment before lifting.

NOTICE: Do not attempt to lift tractor with attachments installed.

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RT80 Operator’s Manual

Transport - 67

Tie Down

Tie Down Incorrect procedures could result in death, injury, or property damage.

Learn to use equipment correctly.

Points Tiedown points are identified by tiedown decals. Securing to trailer at other points is unsafe and can damage machinery.

Procedure Tractor Attach chains at front and rear tiedown points. Make sure chains are tight before transporting unit.

H813 Trencher Lower trencher to trailer deck and chain at attachment frame and through boom. Make sure chains are tight before transporting.

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Transport - 68

RT80 Operator’s Manual Tie Down

H540 Saw Lower saw to lowest position and tie down at points indicated. Make sure chains are tight before transporting.

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RT80 Operator’s Manual

Transport - 69

Haul

Haul Incorrect procedures could result in death, injury, or property damage.

Learn to use equipment correctly.

NOTICE: •

Read trailer operator’s manual before loading or transporting your machine. Incorrectly loaded machine can slip or cause trailer sway.

•

Attach trailer to tow vehicle before loading or unloading.

•

Park, load, and unload trailer on level ground.

•

Check that unit and trailer do not exceed size or weight regulations.

•

Ensure that tow vehicle has proper tow capacity rating.

•

Ten to fifteen percent of total vehicle weight (equipment plus trailer) must be on tongue to help prevent trailer sway.

•

Connect safety chains to tow vehicle. Attach left chain to right side of tow vehicle and vice versa to cradle hitch. Do not connect to pintle hook or hitch ball.

•

Connect breakaway switch cable to tow vehicle. Do not connect to pintle hook or hitch ball.

Procedure Inspect Trailer 1. Check hitch for wear and cracks. Lubricate if needed.

2. Check battery for 12V charge.

3. Inspect lights for cleanliness and correct operation. Inspect reflectors and replace if needed.

4. Check tire pressure. Check lug nut torque with a torque wrench. Adjust if needed.

5. Ensure trailer brakes are adjusted to come on in synchronization with tow vehicle brakes.

6. Check ramps and trailer bed for cracks.

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RT80 Operator’s Manual

Transport - 70

Haul Load Crushing weight. If load falls or moves it could kill or crush you. Use proper procedures and equipment or stay away.

NOTICE: •

Attach trailer to tow vehicle before loading or unloading.

•

Load and unload trailer on level ground.

•

Put manual transmission into first or reverse gear or automatic transmission into park. Turn off ignition. Set parking brake.

•

Block trailer wheels.

•

Incorrect loading can cause trailer swaying.

Rollover possible. If machine rolls over, you could be thrown from seat and killed or crushed. Wear seat belt.

1. Fasten and adjust seat belt.

2. Start tractor. See page 60 for proper start-up procedures.

3. Raise attachments, but keep them low.

4. Move attachments to center position and check that they are not in float.

5. Move transmission speed control to low.

6. Release parking brake and verify parking brake indicator is off.

7. Slow engine to low throttle and slowly drive tractor onto trailer.

8. Position tractor on trailer deck for proper weight distribution.

9. Engage parking brake and verify that parking brake indicator is on.

10. Lower attachments to trailer bed and turn tractor off. See page 62 for proper shutdown procedures.

11. Attach chains to tractor and attachments where tiedown decals are located. See page 67.

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RT80 Operator’s Manual

Transport - 71

Haul Unload Crushing weight. If load falls or moves it could kill or crush you. Use proper procedures and equipment or stay away.

NOTICE: •

Attach trailer to tow vehicle before loading or unloading.

•

Load and unload trailer on level ground.

•

Put manual transmission into first or reverse gear or automatic transmission into park. Turn off ignition. Set parking brake.

•

Block trailer wheels.

•

Incorrect loading can cause trailer swaying.

Rollover possible. If machine rolls over, you could be thrown from seat and killed or crushed. Wear seat belt.

1. Lower trailer or ramps.

2. Remove chains from tiedowns.

3. Fasten and adjust seat belt.

4. Start tractor. See page 60 for proper start-up procedures.

5. Raise attachments, but keep them low and centered.

6. Disengage parking brake and verify parking brake indicator is off.

7. Slow engine to low throttle and slowly back unit down trailer or ramps.

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RT80 Operator’s Manual

Transport - 72

Tow

Tow Incorrect procedures could result in death, injury, or property damage.

Learn to use equipment correctly.

Under normal conditions, tractor should not be towed. If tractor becomes disabled and towing is necessary: •

Do not tow for more than 200 yd (180 m).

•

Tow at less than 1 mph (1.6 km/h).

•

Use maximum towing force of 1.5 times unit weight.

Procedure 1. Attach tow line to all available tie-down points facing towing vehicle.

2. Block the wheels.

3. Remove cartridge from check valve: •

Open floor panel.

•

Remove cap from check valve (shown).

•

Remove cartridge from check valve.

•

Install cap.

4. Fasten and adjust seat belt.

5. If engine will run, start tractor so that power steering is available while towing.

6. Remove blocks.

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RT80 Operator’s Manual

Trench - 73

Trench Chapter Contents Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

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RT80 Operator’s Manual

Trench - 74

Setup

Setup EMERGENCY SHUTDOWN - Turn ignition switch to STOP.

Crushing weight could cause death or serious injury. Use proper procedures and equipment or stay away.

NOTICE: Use attachments or counterweights to make front and rear loads balance when all attachments are raised. Contact your Ditch Witch dealer about counterweighting for your equipment.

Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment.

NOTICE: Comply with all utility notification regulations before digging or drilling.

Incorrect procedures can result in death, injury, or property damage.

Learn to use equipment correctly.

1. Fasten and adjust seat belt.

2. Start tractor. See page 60 for start-up procedures.

3. Drive to starting point. Move in line with planned trench.

4. Switch transmission speed to low.

5. Switch hydraulic ground drive motor speed to low.

6. Lower backfill blade.

7. Swivel seat to desired position.

8. Lower boom to just above ground.

9. Engage optional Trench Depth Meter, if equipped. See page 99.

10. Check that attachment speed/direction control and ground drive hand control and foot pedal are in neutral.

11. Check that boom is in line with planned trench.

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RT80 Operator’s Manual

Trench - 75

Operation

Operation Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment.

NOTICE: Cutting, drilling, or working materials such as concrete, sand, or rock containing quartz may result in exposure to silica dust. Use water spray or other means to control dust. If workers are exposed to dust they must wear appropriate breathing protection. Silica dust may cause lung disease and is known to the State of California to cause cancer.

Electrical shock. Contacting electrical lines will cause death or serious injury. Know location of lines and stay away.

NOTICE: Cutting high voltage cable can cause electrocution. Expose lines by hand before digging.

Incorrect procedures could result in death, injury, or property damage.

Learn to use equipment correctly.

NOTICE: •

Comply with all utility notification regulations before digging or drilling.

•

Notify companies that do not subscribe to One-Call.

safety glasses.

Flying objects thrown by machine may strike people. Wear hard hat and

Moving digging teeth will cause death or serious injury. Stay away.

NOTICE: •

Ensure parking brake is engaged and parking brake indicator is on.

•

Machine might jerk when digging starts. Allow 3’ (1 m) between digging teeth and obstacle.

•

Keep everyone at least 6’ (2 m) from machine, attachments, and their range of movement.

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Trench - 76

RT80 Operator’s Manual Operation

1. If necessary, adjust throttle to low idle.

2. Move attachment speed/direction control to desired speed. DIGGING CHAIN WILL MOVE. 3. Increase engine speed to full throttle.

4. Slowly lower digging boom to depth.

5. Raise backfill blade and release parking brake.

6. Move ground drive control to desired speed.

7. If using optional trench cleaner: •

Stop tractor and turn ignition switch to STOP.

•

Manually lower trench cleaner.

•

Restart tractor, fasten seat belt, and continue trenching.

NOTICE: •

Do not have trench cleaner in working position when starting a trench.

•

Do not back up with trench cleaner in working position.

•

Do not use trench cleaner in conditions where large rocks can get between chain and cleaner.

8. Engage optional cruise control if desired. See page 98.

9. Lower boom to trench depth and push ground drive control forward to trenching speed.

10. When trench is complete, move ground drive control to neutral.

11. Adjust throttle to low idle.

12. Raise boom.

13. As boom clears top of trench, move attachment speed/direction control to neutral.

14. Swivel seat to the drive position.

15. Drive a short distance away from work site.

16. Shut down tractor. See page 62 for proper shutdown procedures.

17. Return optional trench cleaner to the stowed position.

CMW

RT80 Operator’s Manual

Saw - 77

Saw Chapter Contents Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 •

Before First Use and After Replacing Bits. . . . . . . . . . . . . . . . . . . . . . . .79

•

Normal Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

CMW

RT55 Operator’s Manual

Saw - 78

Setup

Setup EMERGENCY SHUTDOWN - Turn ignition switch to STOP.

Crushing weight could cause death or serious injury. Use proper procedures and equipment or stay away.

NOTICE: Use attachments or counterweights to make front and rear loads balance when all attachments are raised. Contact your Ditch Witch dealer about counterweighting for your equipment.

Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment.

NOTICE: Comply with all utility notification regulations before digging or drilling.

Incorrect procedures can result in death, injury, or property damage.

Learn to use equipment correctly.

CMW

RT80 Operator’s Manual

Saw - 79

Setup

Before First Use and After Replacing Bits Flying objects may cause injury. Wear safety glasses.

NOTICE: Unless otherwise instructed, all service should be performed with tractor off.

IMPORTANT: •

Carbide bits are recommended for cutting abrasive material, such as sandstone or frozen sands or gravels.

•

Saw use is not recommended for soft, wet, or sticky soil conditions.

Check Bit Clearance 1. Check that all bits are properly secured.

•

Tap bits lightly with a hammer and turn by hand.

•

If bits are stuck, remove and clean packed soil from bit block.

2. Check that all bit retaining rings are secure. For best results, use retaining clip loading and removing tool and a knock-out bar included with saw to remove and reinsert bits.

3. Spin wheel by hand and listen for bits hitting diverters.

4. If bits hit diverters, repeat steps 1-3 to make sure bits are in the proper location and secured at proper depth.

5. If bits do not hit diverters: •

Set parking brake.

•

Fasten and adjust seat belt.

•

Start tractor and adjust throttle.

•

Raise saw slightly.

•

Use attachment speed/direction control to rotate saw slowly. As it rotates, listen for clicking sounds. If clicking is present, repeat steps 1-4.

Normal Use 1. Fasten and adjust seat belt.

2. Start tractor. See page 60 for start-up procedures.

3. Drive to starting point. Move in line with planned trench. See page 62 for correct operating procedures.

4. Engage parking brake and verify parking brake indicator is on.

5. Switch transmission speed to low.

6. Swivel seat to desired position.

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Saw - 80

RT55 Operator’s Manual Setup

7. Lower saw to just above ground.

8. Check that saw is in line with planned trench and that tires are pointing straight ahead.

CMW

RT80 Operator’s Manual

Saw - 81

Operation

Operation Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment.

NOTICE: Cutting, drilling, or working materials such as concrete, sand, or rock containing quartz may result in exposure to silica dust. Use water spray or other means to control dust. If workers are exposed to dust they must wear appropriate breathing protection. Silica dust may cause lung disease and is known to the State of California to cause cancer.

Electrical shock. Contacting electrical lines will cause death or serious injury. Know location of lines and stay away.

NOTICE: Cutting high voltage cable can cause electrocution. Expose lines by hand before digging.

Incorrect procedures could result in death, injury, or property damage.

Learn to use equipment correctly.

NOTICE: Use attachments or counterweights to make front and rear loads balance when all attachments are raised. Contact your Ditch Witch dealer about counterweighting for your equipment.

safety glasses.

Flying objects thrown by machine may strike people. Wear hard hat and

Moving digging teeth will kill you or cut off arm or leg. Stay away.

NOTICE: •

Machine might jerk when digging starts. Allow 3’ (1 m) between digging teeth and obstacle.

•

Keep everyone at least 6’ (2 m) from machine, attachments, and their range of movement.

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RT55 Operator’s Manual

Saw - 82

Operation 1. Adjust throttle to low idle.

2. Lower backfill blade to ground.

3. Move attachment speed/direction control to desired speed. SAW WILL TURN. 4. Increase engine speed to full throttle.

5. Slowly lower saw to trench depth.

6. Release parking brake and verify parking brake indicator is off.

7. Raise backfill blade.

8. Push ground drive control forward to trenching speed.

IMPORTANT: •

For cruise control operation, see page 98.

•

Lower saw into softer material then move into harder or abrasive material. For example, lower saw into dirt at shoulder before cutting across road.

•

If a curved trench must be cut, make a series of straight cuts.

9. When trench is complete, adjust throttle to low idle.

10. Raise saw.

11. As saw clears top of trench, move attachment speed/direction control to neutral.

12. Swivel seat to the drive position.

13. Drive a short distance away from work site.

14. Shut down tractor. See page 62.

15. Wash bits and mounting blocks with high pressure water before parking unit overnight.

CMW

RT80 Operator’s Manual

Backhoe - 83

Backhoe Chapter Contents Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Stowing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

CMW

Backhoe - 84

RT80 Operator’s Manual Setup

Setup 1. Move attachment speed/direction control to neutral position.

2. Move ground drive hand control and foot pedal to neutral position.

3. Switch transmission speed to low.

4. Switch ground drive hydraulic motor speed to low.

5. Lower rear attachment to 6” (150 mm) above ground.

6. Check that backfill blade is straight and lower it to ground.

7. Set engine speed to low throttle.

8. Move to backhoe operator’s station.

9. Lower stabilizers enough to lift front tires.

10. Move swing lock control to the unlock position.

11. Raise boom to release tension on stow lock.

12. Release stow lock by pushing handle forward.

IMPORTANT: For more information about stow lock, see page 44.

13. Adjust engine speed to 1/2 to 3/4 throttle for digging.

NOTICE: Engine speed affects speed of backhoe operation.

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RT80 Operator’s Manual

Backhoe - 85

Operation

Operation Use boom/swing control and bucket/dipper control to dig hole or trench.

IMPORTANT: For more information about backhoe controls, see page 42.

•

Keep dipper and boom at right angles as much as possible for maximum power.

•

Keep bucket in line with dipper as much as possible.

•

Position bucket so teeth cut soil. As soil is cut, curl bucket under dipper.

•

Move dipper and bucket together. Increasing engine speed will not increase backhoe force.

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Backhoe - 86

RT80 Operator’s Manual Stowing

Stowing NOTICE: Before returning to tractor operator station, raise stabilizers, return remote throttle to low idle, and stow and lock boom.

1. When hole or trench is complete, lift boom while keeping dipper pointed at ground.

2. Curl bucket closed and move dipper fully toward boom.

3. Lift boom to highest position and latch stow lock.

4. Lower boom slightly to engage lock.

5. Engage swing lock. See page 44.

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RT80 Operator’s Manual

Backhoe - 87

6. Raise stabilizers.

7. Return remote throttle to low idle.

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Backhoe - 88

CMW

RT80 Operator’s Manual

RT80 Operator’s Manual

Drill - 89

Drill Chapter Contents Drilling Attachment . . . . . . . . . . . . . . . . . . . . . . . . . 91 Prepare Jobsite and Equipment . . . . . . . . . . . . . . 91 •

Approach Trench. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91

•

Target Trench . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91

•

Drill Rod and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92

Drill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 •

Using Drill String Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94

Add Rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Backream. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Disassemble Joints. . . . . . . . . . . . . . . . . . . . . . . . . 96

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RT80 Operator’s Manual

Drill - 90

Turning shaft will kill you or crush arm or leg. Stay away.

NOTICE: •

Keep everybody at least 10’ (3 m) away from drill pipe during operation. Do not straddle trench or drill pipe while drilling.

•

If swivel malfuntions, material being installed can rotate.

•

To align drill rod when starting a bore, use a guide. Guides are available from your Ditch Witch dealership.

•

Keep all persons away from material being installed.

Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment.

NOTICE: Set up warning barriers and keep people away from equipment and jobsite while drilling.

Incorrect procedures could result in death, injury, or property damage.

Learn to use equipment correctly.

Improper control function could cause death or serious injury. If control does not work as described in instructions, stop machine and have it serviced.

NOTICE: •

Do not alter controls.

•

Do not tape or tie down switch or lever.

•

Improper control function can cause serious injury.

•

If releasing control does not stop turning shaft, turn off power supply. Stop drilling. Have unit repaired.

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RT80 Operator’s Manual

Drill - 91

Prepare Jobsite and Equipment

Prepare Jobsite and Equipment Approach Trench (1) 1. Mark path where you intend to drill.

2. Dig an approach trench (1) along the intended bore path.

IMPORTANT: The approach trench should be at least: •

deep enough for pipe to lay flat and enter soil at correct angle

•

20’ (6 m) long

•

4” (100 mm) wide

Target Trench (2) 1. Select a completion point for the drilling project.

2. Dig a target trench (2) across the anticipated completion point.

IMPORTANT: •

The actual length of the target trench depends on soil conditions and length of pipe sections. Make it deep enough for drill bit to enter slightly above the trench floor.

•

An alternative to digging a target trench is to use a Subsite® 750 Tracker to locate the bit, then dig down with posthole diggers. This method may be desirable to minimize surface soil disturbance.

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Drill - 92

RT80 Operator’s Manual Prepare Jobsite and Equipment

Drill Rod and Equipment 1. Assemble at least 20’ (6 m), but not more than 30’ (9 m), of drill rod.

NOTICE: More than 10-15’ (3-4.5 m) of drill rod out of the trench increases the tendency of drill rod to bend.

2. Install drill bit to the cutting end of the drill string.

3. Put drill string in approach trench.

4. Move machine to the approach trench and align the drilling attachment with the intended bore path.

5. Turn off engine.

6. Attach drill string to drilling attachment.

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RT80 Operator’s Manual

Drill - 93

Drill

Drill IMPORTANT: For location and description of drilling controls see page 29.

EMERGENCY SHUTDOWN: Release all controls and turn ignition switch to OFF position.

1. Pull selector valve upward to select drill mode (if applicable).

2. Start engine and begin clockwise (forward) rotation.

3. Slowly advance machine while maintaining clockwise rotation.

NOTICE: •

Drilling too quickly causes bit to drift off course and may bend drill rod. After bore path is established, speed may be slightly increased.

•

If drill rod starts to bend, stop forward movement of unit and back the unit slightly until rod straightens. Do not drill with bent rod.

•

If drill rod hits an obstruction, rotate drill string counterclockwise to back up slightly.

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RT80 Operator’s Manual

Drill - 94

Drill

Using Drill String Guide Turning shaft will kill you or crush arm or leg. Stay away.

NOTICE: •

Keep everybody at least 10’ (3 m) away from drill rod during operation. Do not straddle trench or drill rod while drilling.

•

To align drill rod when starting a bore, use a guide. Guides are available from your Ditch Witch dealership.

Use drill string guide to align drill string as it enters the soil. When using drill string guide, follow these guidelines: •

Use only approved Ditch Witch drill string guide (p/n 179-737).

•

Stand only on the left side of the approach trench.

•

Keep drill string guide at least 3’ (1 m) behind bit.

•

Use drill string guide to control only the first 5’ (1.5 m) of the bore path.

•

After drilling 5’ (1.5 m), stop unit and remove drill string guide.

•

Do not use drill string guide during backreaming or any time the drill string is being pulled back.

CMW

RT80 Operator’s Manual

Drill - 95

Add Rod

Add Rod IMPORTANT: It is recommended that a helper be used to add drill rod.

1. Use control to stop drilling attachment.

2. Use ground drive controls to back up unit 6” (150 mm) to loosen drill rod in ground.

3. Disconnect drill rod from drilling attachment.

4. Use ground drive controls to move unit away from bore.

5. Add one drill rod to continue bore.

•

Have a helper direct unit operator to align drilling attachment with new rod and stop when drilling attachment and rod are 1” (25 mm) apart.

•

Have a helper lightly hold rod and direct unit operator to move unit forward slowly.

•

As soon as rod begins to engage drilling attachment, have helper release rod and move hands and arms clear of drilling attachment.

Backream After drill bit enters target trench, the bore hole may be enlarged by changing the drill bit to a backreamer and drawing it back through the initial bore.

1. Turn ignition switch to OFF position.

2. Replace drill bit with backreamer.

3. Start engine and begin clockwise rotation.

IMPORTANT: Always rotate clockwise during backreaming. Rotate counterclockwise only to dislodge a dry bore bit or reamer that has seized in the bore hole.

4. Slowly back up machine while maintaining rotation.

5. When backreamer exits the bore hole, stop rotation immediately.

IMPORTANT: •

Do not try to increase hole size too much in one pass. Several passes using successively larger reamers will save wear on machine.

•

During backreaming, keep drill string straight. Sharp bends in the drill rod at the motor coupling can cause rod failure.

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Drill - 96

RT80 Operator’s Manual Disassemble Joints

Disassemble Joints 1. Press tab through hole in female side of joint (1) using special tool or screwdriver.

2. Pull rods apart (2).

CMW

RT80 Operator’s Manual

Systems and Equipment - 97

Systems and Equipment Chapter Contents Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 •

Operate Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98

Trench Depth Meter . . . . . . . . . . . . . . . . . . . . . . . . 99 Chain, Teeth, and Sprockets . . . . . . . . . . . . . . . . . 99 •

Chain and Tooth Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99

•

Chain Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99

•

Chain Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100

Optional Equipment . . . . . . . . . . . . . . . . . . . . . . . 101 •

RT80 Tractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101

•

H813 Trencher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101

Counterweights . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Systems and Equipment - 98

RT80 Operator’s Manual Cruise Control

Cruise Control Automatic cruise control is an optional feature that allows the unit to maintain a preset engine speed as digging conditions vary. When the unit encounters difficult soil conditions, the ground drive speed will decrease to reduce engine load. In easier soil conditions, the ground drive speed will increase.

Operate Cruise Control EMERGENCY SHUTDOWN - Turn ignition switch to STOP. 1. First set the following controls: •

ground drive hand control and foot pedal to neutral

•

transmission speed to low

•

cruise control selector to MANUAL

•

all other controls set as desired

2. Move cruise control rpm control to arrow at center.

3. Begin trenching to desired depth.

4. When desired depth is reached, ensure throttle is fully open.

5. Slowly move ground drive hand control fully forward.

6. Move cruise control selector to AUTO. 7. Slowly adjust cruise control rpm control to match digging conditions.

IMPORTANT:

8.

•

In harder digging conditions, higher cruise control rpm setting setting may improve digging performance.

•

In easier digging conditions, lower cruise control rpm setting may increase ground drive speed.

When finished digging, move ground drive control to neutral, then move cruise control selector to MANUAL. Incorrect procedures could result in death, injury, or property damage. Learn to use equipment correctly.

NOTICE: Moving cruise control selector to MANUAL with ground drive control out of neutral will cause machine to immediately move in the direction of the ground drive control. This can result in injury or damage.

9. Allow chain/saw to dig itself free before stopping attachment.

RT80 Operator’s Manual

Systems and Equipment - 99

Trench Depth Meter

Trench Depth Meter Trench Depth Meter (TDM) is an optional electronic system for measuring and recording trench depth.

TDM also displays productivity and distance while trenching. Two lines of information are displayed on the LED screen. If the system detects error conditions, diagnostic codes will be displayed on the second line.

IMPORTANT: For more information about TDM see the TDM Operator’s Manual (p/n 054-117).

Chain, Teeth, and Sprockets Chain and Tooth Maintenance •

Always replace sprockets at the same time you replace the digging chain. Sprockets and chain are designed to work together. Replacing one without the other will cause premature wear of the new part.

•

Keep digging teeth sharp. Using dull, worn teeth will decrease production and increase shock load to other trencher components. It can also cause chain stretch, which leads to premature chain wear and failure.

•

Maintain the proper amount of tension on the digging chain. Overtightening will cause chain stretch and loss of machine performance. For correct tightening procedure, see page 118.

•

Use the tooth pattern most appropriate for your digging conditions. If you move to a different soil type, contact your Ditch Witch dealer for information about the most effective chain type and tooth pattern.

Chain Types Chain type

Features

4-pitch

standard chain

2-pitch

more teeth for smoother cutting

alternating side bar

prevents spoil compaction on chain

bolt-on adapters

allow easy configuration changes

Shark Chain II

versatile, virtually maintenance-free

combination

provides pick and shovel effect

RT80 Operator’s Manual

Systems and Equipment - 100

Chain, Teeth, and Sprockets

Chain Selection These charts are meant as a guideline only. No one chain type works well in all conditions. See your Ditch Witch dealer for soil conditions and chain recommendations for your area. Ask for the latest Chain, Teeth, and Sprockets Parts Catalog.

•

1 = best

•

2 = better

•

3 = good

•

4 = not recommended Chain

Sandy Soil

Soft Soil

Medium Soil

Hard Soil

Rocky Soil

Sticky Soil

4-pitch cup tooth

3

1

2

3

4

1

2-pitch cup tooth

2

3

1

1

3

4

bolt-on adaptor, 2-pitch

4

4

3

2

1

4

bolt-on adaptor/cup tooth combo

4

3

2

1

2

4

Shark

4

3

2

1

1

4

4

4

4

4

4

1

hain I

C

alternating side bar

I

Soil

Description

sandy soil

sugar sand, blow sand, or other soils where sand is the predominant component

soft soil

sandy loam

medium soil

loams, loamy clays

hard soil

packed clays, gumbo, all compacted soils

rocky soil

chunk rock, glacial till, cobble, rip rap, gravel

sticky soil

gumbo, sticky clays

RT80 Operator’s Manual

Systems and Equipment - 101

Optional Equipment

Optional Equipment See your Ditch Witch dealer for more information about the following optional equipment.

RT80 Tractor Equipment

Description

dual batteries

provide more cranking power for cold starting

backup alarm

for use with saws or other low visibility situations

4-post ROPS

includes canopy

light kits

mount to 2-post or 4-post ROPS

tires

31” or 35” are available

cruise control kit

allows unit to automatically adjust ground drive speed to digging conditions

cold start kit

aids starting in cold weather

rear steer

provides greater maneuverability while working

rear counterweight

required for some backhoe and reel carrier applications

muffler guard

encloses and protects exhaust pipe/muffler

European compliance kit

includes battery disconnect switch and hood lock

H813/H853 Trencher Equipment

Description

booms

provide depth options of 3’ (1 m) or 4’ (1.2 m); lighter-weight, small tail sprocket booms also are available

mechanical trench cleaner

removes spoils from the trench floor

long auger extensions

for conditions that require spoils to be moved farther from the trench

RT80 Operator’s Manual

Systems and Equipment - 102

Counterweights

Counterweights Attachments or counterweights are installed to make front and rear loads balance when all attachments are raised. Use the chart below to determine how much counterweight is needed with your machine configuration.

Attachment

Boom

Counterweight Required

H813 only

3 ft and 4 ft

none

5 ft

Front Axle: 1000 lb (454 kg), not required for chains less than 600 lb (272 kg)

7 ft

Front Axle: 1000 lb (454 kg)

A523 and H813, hydraulic slide

any

none

A523 and H813, manual slide

any

Rear Weight: 200 lb (91 kg) on opposite side of traverse

H540 only

n/a

none

A523 and H540

n/a

none

RT80 Operator’s Manual

Complete the Job - 103

Complete the Job Chapter Contents Restore Jobsite . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 •

Backfilling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104

Rinse Equipment . . . . . . . . . . . . . . . . . . . . . . . . . 104 Stow Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

CMW

Complete the Job - 104

RT80 Operator’s Manual Restore Jobsite

Restore Jobsite After product is installed, return spoils to the trench with backfill blade.

Backfilling 1. Position unit at end of trench, several feet from spoils. Aim tractor at outer edge of spoils.

2. Adjust backfill blade to fit land contour.

3. Move outer edge of spoils toward trench. Take two or more passes at spoils rather than moving all spoils at once.

4. Repeat on other side of trench, if necessary.

5. Engage float and make final pass over trench.

Rinse Equipment Spray water onto equipment to remove dirt and mud.

NOTICE: Do not spray water onto operator’s console. Electrical components could be damaged. Wipe down instead.

Stow Tools Make sure all tools and accessories are loaded and properly secured on trailer.

CMW

RT80 Operator’s Manual

Service - 105

Service Chapter Contents Service Precautions . . . . . . . . . . . . . . . . . . . . . . . 106 •

Welding Precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106

•

Cleaning Precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106

Lubrication Overview . . . . . . . . . . . . . . . . . . . . . . 107 Recommended Lubricants/Service Key . . . . . . . 108 •

Engine Oil Temperature Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109

10 Hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 50 Hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119 250 Hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 500 Hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 1000 Hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 As Needed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

RT80 Operator’s Manual

Service - 106

Service Precautions

Service Precautions Incorrect procedures could result in death, injury, or property damage.

Learn to use equipment correctly.

NOTICES: •

Unless otherwise instructed, all service should be performed with engine off.

•

Refer to engine manufacturer’s manual for engine maintenance instructions.

•

Before servicing equipment, lower unstowed attachments to ground.

Welding Precaution NOTICE: Welding can damage electronics.

•

Disconnect battery at battery disconnect switch, if equipped, or disconnect battery cables before welding to prevent damage to battery. Do not turn off battery disconnect switch with engine running or alternator and other electronic devices may be damaged.

•

Connect welder ground clamp close to welding point and make sure no electronic components are in the ground path.

•

Always disconnect the ECU ground connection from the frame, harness connections to the ECU, and other electronic components prior to welding on machine or attachments.

Cleaning Precaution NOTICE: When cleaning equipment, do not spray electrical components with water.

RT80 Operator’s Manual

Service - 107

Lubrication Overview

Lubrication Overview 1000 h 500 h 250 h 100 h 50 h 10 h

t26om025h.eps

RT80 Operator’s Manual

Service - 108

Recommended Lubricants/Service Key

Recommended Lubricants/Service Key Item

Description DEO

Diesel engine oil meeting or exceeding Deutz DQC-II-05, API CI-4, ACEA E4, or Global DHD-1.

Use viscosity grade SAE 15W40 unless ambient temperatures below 5°F (-15°C) are expected. Lower viscosity oils must meet the performance specifications shown above. See “Approved Fuel” on page 109 for additional guidelines.

MPG

Multipurpose grease meeting ASTM D217 and NLGI 2

MPL

Multipurpose gear oil meeting API service classification GL-5 (SAE 80W90)

THF

Tractor hydraulic fluid, similar to Phillips 66 HG, Mobilfluid 423, Chevron Tractor Hydraulic Fluid, Texaco TDH Oil, or equivalent

ATF

Automatic transmission fluid. Use only Dextron III automatic transmission fluid.

DEAC

Diesel engine antifreeze/coolant meeting ASTM D6210 (fully formulated) or D4985 (low silicate) Check level of fluid or lubricant

C

heck condition Filter Change, replace, adjust, service, or test

Proper lubrication and maintenance protects Ditch Witch equipment from damage and failure. Service intervals listed are for minimum requirements. In extreme conditions, service machine more frequently.

Use only recommended lubricants. Fill to capacities listed in “Fluid Capacities” on page 141.

For more information on engine lubrication and maintenance, see your Deutz® engine manual.

NOTICE: •

Use only genuine Ditch Witch parts, filters, approved lubricants, TJC, and approved coolants to maintain warranty.

•

Use the “Service Record” on page 157 to record all required service to your machine.

RT80 Operator’s Manual

Service - 109

Recommended Lubricants/Service Key

Engine Oil Selection Chart 15W- 40 5W- 30 0W-40 F -40 C -40

-20 -30

0 -20

-10

20

0

40

10

60

20

80

30

100 40

120 50

j28om132t.eps

Select oil based on ambient temperature expected before next oil change

Approved Coolant This unit was filled with John Deere Cool-Gard coolant before shipment from factory. Add only John Deere Cool-Gard (p/n 255-006) or any fully-formulated, ethylene glycol based, low-silicate, heavy-duty diesel engine coolant meeting ASTM specification D6210 or D4985.

NOTICE: Do not use water or high-silicate automotive-type coolant. This will lead to engine damage or premature engine failure.

Approved Fuel The engine is this unit is designed to run on diesel fuel. Use only high-quality fuel meeting ASTM D975 No. 2D, EN590, or equivalent. At temperatures below 32°F (0°C), winter fuel blends are acceptable. See engine operation manual for more information.

IMPORTANT: Fuel sulfur content should be less than 5000 ppm (0.5%). Worldwide, fuel sulfur regulations vary widely. Fuel used should always comply with local regulations. Do not use lube oil meeting API CJ-4 (or other low SAPS equivalent) if fuel sulfur content is above 5000 ppm (0.05%, low sulfur diesel in the U.S.).

Biodiesel blends up to 5% (B5) are approved for use in this unit. The fuel used must meet the specifications for diesel fuel shown above. Extra attention is needed when using biodiesel, especially when operating in cold weather or storing fuel. Contact your Ditch Witch dealer or the engine manufacturer for more information.

RT80 Operator’s Manual

Service - 110

10 Hour

10 Hour Location

Task

Notes

TRACTOR

Check engine oil level

DEO

Check hydraulic fluid

THF

Check radiator/oil cooler Check air filter Check hoses Check hydraulic hoses Check tire pressure and lugnuts

30-40 psi (2.1-2.8 bar) or 55 psi (3.8 bar) 150 ft•lb (120 N•m)

Check fuel filter water separator TRENCHER

Lube trencher tail roller

EPG

Lube trencher pivot and headshaft

EPG

Lube trencher pivot stub

EPG

Lube trencher auger bearings and bolts

EPG

Check trencher auger bolts Check attachment mounting bolts

200 ft•lb (271 N•m)

Check digging chain teeth and bits Check digging chain Check digging chain tension

1.5-2.0" (40-50 mm)

RT80 Operator’s Manual 10 Hour

Tractor Check Engine Oil Level While engine oil is warm, check oil level at dipstick (1) every 10 hours. Add DEO at fill (2) as necessary to keep oil level at highest line on dipstick.

IMPORTANT: See page 108 for DEO specifications.

Check Hydraulic Fluid With tractor level, check fluid at sight glass (1) every 10 hours. Fluid should be halfway up sight glass. Add THF at fill (2) as necessary.

Service - 111

Service - 112

RT80 Operator’s Manual 10 Hour

Check Air Filter Check air filter restriction indicator every 10 hours. Change air filter elements when air filter restriction indicator reaches the red zone.

NOTICE: Only open the air filter canister when air restriction is indicated. Change the elements, do not attempt to clean them.

•

Compressed air or water may damage filter eleements.

•

Tapping filter elements to loosen dirt may damage the elements.

To change: 1. Remove air filter cover and remove primary (1) and safety (2) elements.

2. Wipe inside of housing and wash cover.

3. Insert new elements.

4. Replace cover.

5. Reset air filter restriction indicator.

Check Hoses Check all hoses every 10 hours. Look for obvious leaks or deterioration.

RT80 Operator’s Manual

Service - 113

10 Hour Check Hydraulic Hoses

away.

Fluid or air pressure could pierce skin and cause injury or death. Stay

NOTICE: Escaping pressurized fluid can cause injury or pierce skin and poison.

•

Before disconnecting a hydraulic line, turn engine off and operate all controls to relieve pressure.

Lower, block, or support any raised component with a hoist. Cover connection with heavy cloth and loosen connector nut slightly to relieve residual pressure. Catch all fluid in a container.

•

Before using system, check that all connections are tight and all lines are undamaged.

•

Fluid leaks can be hard to detect. Use a piece of cardboard or wood, rather than hands, to search for leaks.

•

Wear protective clothing, including gloves and eye protection.

If you are injured, seek immediate medical attention from a doctor familiar with this type of injury.

Check all hydraulic hoses every 10 hours.

RT80 Operator’s Manual

Service - 114

10 Hour Check Radiator/Oil Cooler Check radiator/oil cooler for dirt and debris. Clean with compressed air or spray wash as needed. Be careful not to damage fins with high-pressure air or water. Clean more often if operating in dusty or grassy conditions.

To clean 1. Clean fins with compressed air or spray wash.

2. Remove grill and spray through radiator away from engine.

3. If grease and oil are present on radiator, spray with solvent and allow to soak overnight.

Check Tires Check tire pressure every 10 hours. Use waterrinsable air gauge if tire ballast is used.

Tire option

Maximum pressure

31 x 15.50-15 8-ply bar lug

40 psi (2.8 bar)

35 x 19-16.1 12-ply bar lug

45 psi (3.1 bar)

Tighten lugnuts to 150 ft•lb (120 N•m).

Check Fuel Filter Water Separator Check water separator every 10 hours. Drain at plug until water is removed and fuel runs from drain.

RT80 Operator’s Manual 10 Hour

Trencher Lube Trencher Tail Roller Wipe zerks clean and lube every 10 hours with EPG. Lube roller zerks on both sides of boom.

Lube Trencher Pivot and Headshaft Wipe 8 zerks clean and lube every 10 hours with EPG. •

Lube zerk (1) until grease appears at headshaft hub.

•

Lube the other 7 zerks (shown) with 8-10 pumps of EPG.

Service - 115

Service - 116

RT80 Operator’s Manual 10 Hour

Lube Trencher Pivot Stub Wipe two zerks (one on each side) clean and lube every 10 hours with EPG.

Lube Trencher Auger Bearings and Shaft Wipe zerks clean and lube every 10 hours with EPG.

Check Trencher Auger Bolts Check trencher auger bolts every 10 hours.

Tighten as necessary.

RT80 Operator’s Manual

Service - 117

10 Hour Check Attachment Mounting Bolts Check bolts every 10 hours. Torque to 200 ft•lb (271 N•m).

Check Digging Chain Check teeth (1) for wear every 10 hours. Replace worn teeth, using Ditch Witch replacement parts and maintaining original tooth pattern.

Check chain every 10 hours. Replace worn or broken chains. If sidebars (2) are bent or loose on chain pins (3), chain spacers should be used to join sidebars.

For more efficient digging, contact your Ditch Witch dealer for information about the tooth pattern best suited to your jobsite, or see page 99.

IMPORTANT: If using rock chain bits, check that bits rotate freely. Clean chain and check bits after each use. Replace bit when carbide cap or insert is worn or adapter can be damaged.

RT80 Operator’s Manual

Service - 118

10 Hour Check Digging Chain Tension Check digging chain tension every 10 hours. With boom horizontal, measure distance from bottom of boom to chain. When properly adjusted, distance should be 1.5-2.0” (40-50 mm).

Fluid pressure could pierce skin and cause injury or death. Stay away.

NOTICE: Service digging boom grease cylinder only while standing on opposite side of boom. Wear gloves and safety glasses, and cover fitting with cloth when relieving pressure in cylinder.

To tighten chain, remove plug and pump EPG into cylinder. To relieve chain tension, loosen plug on grease cylinder.

RT80 Operator’s Manual

Service - 119

50 Hour

50 Hour Location

Task

Notes

TRACTOR

Change hydraulic oil filter (initial)

THF

Check brake fluid (initial)

ATF

Check belt tension

27-30 ft•lb (36-40 N•m)

Check nose counterweight bolts

350 ft•lb (475 N•m)

TRENCHER

Check chain guide for wear

SAW

Lube saw gearbox

Change Hydraulic Oil Filter (Initial) Change hydraulic oil filter after first 50 hours of operation.

Check Brake Fluid (Initial) Check brake fluid after first 50 hours, then every 100 hours. Remove floor cover to access master cylinder. Check brake fluid more frequently if working in dusty conditions. Refill with ATF fluid.

(See “Recommended Lubricants/Service Key” on page 108.)

MPG

Service - 120

RT80 Operator’s Manual 50 Hour

Check Belt Tension Check belt tension every 50 hours. See engine manual for tension specifications. If belt is loose, loosen alternator bolts (1) and adjust alternator.

Retighten bolts.

Check Nose Counterweight Bolts Check tightness of nose weight bolts every 50 hours. Check for looseness or wear. Use the numbered sequence shown to tighten bolts to 350 ft•lb (475 N•m).

Trencher Check Chain Guide Check chain guide (shown) for wear every 50 hours. Replace as needed.

RT80 Operator’s Manual 50 Hour

Saw Lubricate Saw Gearbox Lube saw gearbox with 25 pumps of MPG every 50 hours.

Service - 121

RT80 Operator’s Manual

Service - 122

100 Hours

100 Hours Check Brake Fluid Check brake fluid every 100 hours. Remove floor cover to access master cylinder. Check brake fluid more frequently if working in dusty conditions. Refill with ATF fluid. (See “Recommended Lubricants/Service Key” on page 108.)

250 Hour Location

Task

Notes

TRACTOR

Lube driveshaft u-joints

EPG

Lube axle spindle pins

EPG

Lube planetary wheel ends

MPL

Change differential oil (initial)

MPL

Change transmission gearbox oil (initial)

MPL

Lube Driveshaft U-Joints Lube driveshaft u-joints every 250 hours with 3-4 shots of EPG.

RT80 Operator’s Manual 250 Hour Lube Axle Spindle Pins Lube axle spindle pins every 250 hours with 3-4 shots of EPG.

Lube Planetary Wheel Ends Check oil level in planetary wheel ends every 250 hours. Add MPL as needed.

Change Differential Oil, Front Steering Axle (Initial) Change differential oil after first 250 hours of operation and every 1000 hours thereafter.

To change: 1. Remove drain plug (2).

2. Drain fluid and replace plug.

3. Fill with MPL and limited slip additive at fill (1).

Capacity is 3.5 qt (3.3 L).

Service - 123

Service - 124

RT80 Operator’s Manual 250 Hour

Change Transmission Gearbox Oil, Rear Differential Oil (Initial) Change transmission gearbox oil and rear differential oil after first 250 hours of operation and every 1000 hours thereafter.

To change: 1. Remove drain plugs (2).

2. Drain oil and replace plug.

3. Fill gearbox with MPL at fill (1). Capacity: Rear steering axle (differential and transmission): 7.5 qt (7.1 L) Rigid rear axle (includes wheel ends): 10.6 qt (10 L)

RT80 Operator’s Manual

Service - 125

500 Hour

500 Hour Location

Task

Notes

TRACTOR

Change engine oil and filter

DEO

Change hydraulic fluid and filter

THF

Change fuel filters

Tractor Change Engine Oil and Filter Change engine oil and filter every 500 hours.

Change more frequently if working in dusty conditions.

To change: 1. Drain crankcase (3) while oil is warm.

2. Replace filter (4) each time oil is changed.

3. Refill with DEO and fill neck (2). Capacity is 16 qt (15.1 L).

Change Hydraulic Fluid and Filter Change hydraulic fluid and filter every 500 hours.

Change every 250 hours if jobsite temperature exceeds 100°F (38°C) more than 50% of the time.

To change: 1. Remove drain plug (2).

2. Drain fluid and replace plug.

3. Change filter (3).

4. Refill with THF at fill (1). Hydraulic reservoir capacity is 12 gal (45.4 L). Hydraulic system capacity is 20 gal (75.7 L).

Service - 126

RT80 Operator’s Manual 500 Hour

Change Fuel Filters Change primary (2) and filter element (1) every 500 hours.

RT80 Operator’s Manual

Service - 127

1000 Hour

1000 Hour Location

Task

Notes

TRACTOR

Change planetary wheel end oil

MPL

Change differential oil

MPL

Change transmission gearbox oil

MPL

Change Planetary Wheel End Oil (All Steerable Axles) Change wheel end oil every 1000 hours.

To change: 1. Position wheel with plug at bottom.

2. Remove plug.

3. Drain oil.

4. Reposition wheel with plug at midway position.

5. Fill each wheel end with MPL to plug opening.

Capacity is 1.8 qt (1.7 L).

6. Replace plug.

Service - 128

RT80 Operator’s Manual 1000 Hour

Change Differential Oil, Front Steering Axle Change differential oil every 1000 hours.

To change: 1. Remove drain plug (2).

2. Drain fluid and replace plug.

3. Fill with MPL and limited slip additive at fill (1).

Capacity is 3.5 qt (3.3 L).

Change Transmission Gearbox Oil, Rear Differential Oil Change transmission gearbox oil and rear differential oil every 1000 hours.

To change: 1. Remove drain plugs (2).

2. Drain oil and replace plug.

3. Fill gearbox with MPL at fill (1). Capacity: Rear steering axle (differential and trans): 7.5 qt (7.1 L) Rigid rear axle (includes wheel ends): 10.6 qt (10 L)

RT80 Operator’s Manual

Service - 129

2000 Hour

2000 Hour Location

Task

Notes

TRACTOR

Change engine coolant

DEAC

Change Engine Coolant Drain cooling system at drain (3) every two years or 2000 hours. Add DEAC at fill (1) according to instructions below until fluid level is visible in sight glass (2).

NOTICE: •

The use of non-approved coolant may lead to engine damage or premature engine failure and will void engine warranty.

•

See “Approved Coolant” on page 109 for list of approved coolants.

To fill 1. Remove fill cap (1) on expansion tank.

2. Add coolant at expansion tank until fluid is visible in sight glass (2).

3. Run engine with thermostat open (>195°F/90°C engine temperature) for 10 minutes.

4. Stop engine and let cool.

5. Add coolant at expansion tank until visible in sight glass.

6. Install fill cap on expansion tank.

RT80 Operator’s Manual

Service - 130

As Needed

As Needed Location

Task

TRACTOR

Check hydraulic reservoir breather cap

TRENCHER

Replace digging chain and teeth

BACKHOE

Replace backhoe pins, bushings, and bucket teeth

Tractor Check Hydraulic Reservoir Breather Cap Check hydraulic reservoir breather cap and wipe away any dirt or debris as needed.

IMPORTANT: Remove rear panel to access breather cap.

Notes

RT80 Operator’s Manual As Needed Change Intake Air Filter Change air filter when red band is visible on air filter service indicator.

To change: 1. Remove air filter cover and remove primary (1) and safety (2) elements.

2. Wipe inside of housing and wash cover.

3. Insert new elements.

4. Replace cover.

5. Reset air filter service indicator.

Service - 131

RT80 Operator’s Manual

Service - 132

As Needed

Trencher Replace Digging Chain Visually check digging chains for wear on rollers and sidebars (2). Check pins (3) and bushing wear by measuring distance between chain pins and comparing it with a new chain. Also check digging teeth (1).

IMPORTANT: Replace sprockets when a new chain is installed.

To remove chain: 1. Fasten and adjust seat belt.

2. Start tractor. See page 62 for proper start-up procedures.

3. Move attachment direction/speed control until digging chain connector pin is on top of boom.

4. Lower boom to ground.

5. Engage parking brake and verify parking brake indicator is on.

6. Turn ignition switch to STOP. 7. Secure chain by clamping links on either side of connector pin with chain jaws. Squeeze jaws to reduce pressure on connector pin.

t12om089h.eps

RT80 Operator’s Manual

Service - 133

As Needed 8. Loop cable through links nearest connector pin.

t12om090h.eps

away.

Fluid pressure could pierce skin and cause injury or death. Stay

NOTICE: Service digging boom grease cylinder only while standing on opposite side of boom.

Wear gloves and safety glasses, and cover fitting with cloth when relieving pressure in cylinder.

9. Loosen plug on grease cylinder to relieve chain tension.

10. Stand clear of chain and remove lock key from connector pin. Drive connector pin out of link.

Crushing weight could cause death or serious injury. Use proper procedures and equipment or stay away.

11. Unclamp links. Slowly release cable and lower chain to ground.

12. Lay chain on ground with teeth down.

RT80 Operator’s Manual

Service - 134

As Needed To install chain: 1. Lay chain on ground with teeth down and pointed toward unit.

2. Fasten and adjust seatbelt.

3. Start tractor. See page 62 for start-up procedures.

4. Disengage parking brake and verify parking brake indicator is off.

5. Move ground drive control to reverse.

6. Back unit up until chain extends past head shaft about 1’ (305 mm).

7. Move ground drive control to neutral.

8. Lower backfill blade to ground.

9. Lower boom to horizontal position.

10. Engage parking brake and verify parking brake indicator is on.

11. Turn ignition switch to STOP. 12. Pull rear end of chain over and about 10" (260 mm) past tail roller.

13. Use hoist to pull front end of chain over head shaft sprocket.

14. Move chain down boom until chain connector pin and lock key can be installed. Install connector pin and lock key.

15. Tighten chain by pumping EPG into grease cylinder.

Time Augers Ensure that augers are balanced, as shown. If auger timing is off, unit will bounce from side to side even in normal digging conditions.

To adjust timing: 1. Remove bolts holding augers to auger shaft and rotate either auger as needed until augers are balanced.

2. Reinstall bolts and tighten securely.

t12om081h.eps

RT80 Operator’s Manual Backhoe Replace Pins and Bushings Replace pins (1) and bushings (2) when worn or damaged.

Service - 135

Service - 136

RT80 Operator’s Manual

RT80 Operator’s Manual

Specifications - 137

RT80 Tractor

Specifications RT80 Tractor

Dimensions (with 31 x 15.50-15 tire)

U.S.

Metric

A2

Angle of approach

20°

20°

H

Height

95 in

2.4 m

L

Nose to rear mount length

114 in

2.9 m

L2

Length - transport

128 in

3.3 m

L3

Wheelbase

60 in

1.5 m

L4

Rear axle center to rear attachment mounting holes

14.7 in

373 mm

W

Width

76 in

1.9 m

W2

Tread

55 in

1.4 m

Dimensions (with 35 x 19-16.1 tire)

U.S.

Metric

A2

Angle of approach

22°

22°

H1

Height

97 in

2.5 m

L1

Nose to rear mount length

114 in

2.9 m

L2

Length - transport

129 in

3.3 m

Specifications - 138

RT80 Operator’s Manual RT80 Tractor

L3

Wheelbase

60 in

1.5 m

L4

Rear axle center to rear attachment mounting holes

14.7 in

373 mm

W

Width

76 in

1.9 m

W2

Tread

58 in

1.5 m

General Ditch Witch model RT80 tractor, 4-wheel drive, rigid frame, hydrostatic ground drive through rubber tires, 4-wheel steering, hydrostatic attachment drive, riding unit

Operation (with 31 x 15.50-15 tire)

U.S.

Metric

Low gearbox/low motor

2.16 mph

3.47 km/h

Low gearbox/high motor

3.40 mph

5.50 km/h

High gearbox/low motor

6.10 mph

9.89 km/h

High gearbox/high motor

9.40 mph

15.20 km/h

Low gearbox/low motor

0.90 mph

1.44 km/h

Low gearbox/high motor

1.40 mph

2.31 km/h

High gearbox/low motor

2.70 mph

4.34 km/h

High gearbox/high motor

4 mph

6.40 km/h

Front steer only

33.5 ft

10.2 m

Coordinated steer

21.5 ft

65 m

Ground clearance

10 in

254 mm

Basic unit weight without front cast weight

5620 lb

2549 kg

Maximum allowable tractor weight

13100 lb

5942 kg

Front counterweight

1915 lb

870 kg

Forward speeds

Reverse speeds

Vehicle clearance circle (SAE) wall to wall with backfill blade

RT80 Operator’s Manual

Specifications - 139

RT80 Tractor

Operation (with 35 x 19-16.1 tire)

U.S.

Metric

Low gearbox/low motor

2.40 mph

3.86 km/h

Low gearbox/high motor

3.80 mph

6.11 km/h

High gearbox/low motor

6.80 mph

10.94 km/h

High gearbox/high motor

10.50 mph

16.90 km/h

Low gearbox/low motor

1 mph

1.60 km/h

Low gearbox/high motor

1.60 mph

2.57 km/h

High gearbox/low motor

3.10 mph

4.98 km/h

High gearbox/high motor

4.50 mph

7.24 km/h

Front steer only

33.5 ft

10.2 m

Front and rear steer

21.5 ft

6.5 m

Ground clearance

11.6 in

294 mm

Basic unit weight without front cast weight

5880 lb

2667 kg

Maximum allowable tractor weight

13100 lb

5942 kg

Front counterweight

1915 lb

870 kg

Backfill Blade (with 31 x 15.50-15 tire)

U.S.

Metric

Blade width

72 in

1.8 m

Blade height

14 in

355 mm

Lift height above ground

17 in

430 mm

Blade drop below ground

13 in

330 mm

Maximum swing angle (left/right)

30°

30°

Tilt angle (up/down)

16°

16°

Forward speeds

Reverse speeds

Vehicle clearance circle (SAE) wall to wall with backfill blade

Specifications - 140

RT80 Operator’s Manual RT80 Tractor

Backfill Blade (with 35 x 19-16.1 tire)

U.S.

Metric

Blade width

72 in

1.8 m

Blade height

14 in

355 mm

Lift height above ground

19 in

480 mm

Blade drop below ground

12 in

305 mm

Maximum swing angle (left/right)

30°

30°

Tilt angle (up/down)

16°

16°

Power

U.S.

Metric

Displacement

221 in3

3.62 L

Bore

3.78 in

96 mm

Stroke

4.92in

125 mm

Engine manufacturer’s gross power rating (SAE J1995)

83 hp

62 kW

Estimated net power rating (SAE J1349)

79 hp

59 kW

Rated speed

2600 rpm

2600 rpm

Longitudinal

25°

25°

Lateral

25°

25°

Engine: Deutz TD2011L04W, diesel Cooling medium: liquid Injection: direct Aspiration: turbocharged Number of cylinders: 4

Maximum engine tilt angles*

*Exceeding these operating angles will cause engine damage. This DOES NOT IMPLY machine is stable to maximum angle of safe engine operation.

RT80 Operator’s Manual

Specifications - 141

RT80 Tractor

Power Train Ground drive transmission: hydrostatic Differentials: planetary front and rear with optional rear steering Parking brake: manual lever drum brake Tires: 31 x 15.50-15 8-ply bar lug; inflate to 40 psi (276 kPa) maximum.

35 x 19-16.1 12-ply bar lug; inflate to 55 psi (380 kPa) maximum.

Attachment drive transmission: hydrostatic, electric lever-operated speed infinitely variable from zero to maximum

Hydraulic System

U.S.

Metric

Ground drive pump capacity at 2600 rpm

31 gpm

117 L/min

Ground drive pump relief pressure at 2600 rpm

5500 psi

380 bar

Attachment pump capacity at 2600 rpm

31 gpm

114 L/min

forward

5500 psi

380 bar

reverse

3550 psi

245 bar

front pump

8 gpm

30 L/min

rear pump

6 gpm

23 L/min

Auxiliary pump relief pressure at 2600 rpm

3000 psi

207 bar

Fluid Capacities

U.S.

Metric

Fuel tank

30 gal

114 L

Engine oil

16 qt

15 L

Hydraulic reservoir

12 gal

45 L

Hydraulic system

20 gal

76 L

Attachment pump relief pressure at 2600 rpm

Auxiliary pump capacity at 2600 rpm

Specifications - 142

RT80 Operator’s Manual RT80 Tractor

Battery Group 78U, SAE res. cap 110 min., SAE cold crank @ 0° F (-18° C), 800 amp Auxiliary power outlet - 12V, 10A

Vibration Level Vibration transmitted to the operator’s hand and whole body during normal operation does not exceed 2.5 m/s2 and 0.5 m/s2 respectively.

Operator seat complies with ISO 7096.

Noise Levels Operator 89 dBA sound pressure per ISO 6394.

Exterior 107 dBA sound power per ISO 6393.

Unless otherwise specified, all figures are for standard equipment only.

Specifications are called out according to SAE recommended procedures. Specifications are general and subject to change without notice. If exact measurements are required, equipment should be weighed and measured. Due to selected options, delivered equipment may not necessarily match that described.

RT80 Operator’s Manual

Specifications - 143

H813 Trencher

H813 Trencher

Dimensions

U.S.

Metric

A3

Angle of departure

25°

25°

A

Trench depth, maximum

84 in

2.1 m

B

Trench width, minimum to maximum

6-12 in

125-305 mm

C

Boom travel down

55°

55°

C1

Boom travel up

50°

50°

E1

Centerline of trench to outside edge, left*

23.5-67 in

600-1700 mm

E2

Centerline of trench to outside edge, right*

9-53.5 in

230-1335 mm

F

Headshaft height, digging chain

29 in

740 mm

H1

Transport height

122 in

3.1 m

L

Headshaft overhang

46.5 in

1.2 m

L2

Transport length

106 in

2.7 m

L3

Attachment length, fully raised

94 in

2.4 m

Specifications - 144

RT80 Operator’s Manual H813 Trencher

N

Soil discharge reach short auger

17 in

430 mm

long auger

30 in

760 mm

Attachment weight**

2422 lb

1099 kg

Operation

U.S.

Metric

high speed motor

294 rpm

294 rpm

standard speed motor

235 rpm

235 rpm

low speed motor

185 rpm

185 rpm

high speed motor

595 ft/min

181 m/min

standard speed motor

475 ft/min

145 m/min

low speed motor

374 ft/min

114 m/min

high speed motor

692 ft/min

211 m/min

standard speed motor

553 ft/min

169 m/min

low speed motor

435 ft/min

133 m/min

high speed motor

764 ft/min

233 m/min

standard speed motor

611 ft/min

186 m/min

low speed motor

481 ft/min

147 m/min

Headshaft speed @ 2600 rpm

Digging chain speed with 12-tooth, 2” (50-mm) pitch headshaft sprocket

Digging chain speed with 14-tooth, 2” (50-mm) pitch headshaft sprocket

Digging chain speed with 10-tooth, 3.067” (78-mm) pitch headshaft sprocket

*range includes mounting trenching attachment centerline and offset **with 4’ (1.2-m) roller boom and 70K chain

RT80 Operator’s Manual

Specifications - 145

H540 Saw

H540 Saw

Operation

U.S.

Metric

high speed motor

294 rpm

294 rpm

standard speed motor

235 rpm

235 rpm

low speed motor

185 rpm

185 rpm

high speed motor

595 ft/min

181 m/min

standard speed motor

475 ft/min

145 m/min

low speed motor

374 ft/min

114 m/min

high speed motor

692 ft/min

211 m/min

standard speed motor

553 ft/min

169 m/min

low speed motor

435 ft/min

133 m/min

high speed motor

764 ft/min

233 m/min

standard speed motor

611 ft/min

186 m/min

low speed motor

481 ft/min

147 m/min

Headshaft speed @ 2600 rpm

Digging chain speed with 12-tooth, 2” (50-mm) pitch headshaft sprocket

Digging chain speed with 14-tooth, 2” (50-mm) pitch headshaft sprocket

Digging chain speed with 10-tooth, 3.067” (78-mm) pitch headshaft sprocket

RT80 Operator’s Manual

Specifications - 146

H540 Saw Dimensions

U.S.

Metric

A

Trench depth

26”

660 mm

A3

Angle of departure

20°

20°

B

Trench

5” 6” 7”

127 mm, 152 mm 178 mm

D

Transport height - attachment

81”

2m

Height - wheel on ground

55.5”

1.5 m

E1

Centerline of trench to outside edge, left

33.8”

859 mm

E2

Centerline of trench to outside edge, right

37.2”

945 mm

L2

Overall length - wheel on ground

214”

5.4 m

J

Ground clearance at wheel

29.6”

752 mm

Attachment weight

2620 lb

1188 kg

Soil discharge reach

24-30”

610-762 mm

N

idth

w

RT80 Operator’s Manual

Specifications - 147

Operation

U.S.

Metric

Maximum breakover angle at full depth

5°

5°

Quantity of cutting teeth on wheel (5”, 6”, 7”)

28, 32, 40

28, 32, 40

Counterweight required. Contact your Ditch Witch dealer for counterweight requirements.

Power Train Cutting bit types: Rotating, self-sharpening conical bit with spring retainer. Carbide cap or carbide insert available.

Cutter wheel type: 5” (127 mm), 6” (152 mm), or 7” (178 mm) steel wheel with welded on bit segments.

Wheel motor: 15.2 in3 (250 cc) geroter motor.

Wheel shaft bearings: one 5.75” (146 mm) and one 4.31” (110 mm) spherical roller bearing.

Lift provision: one 4” (107 mm) hydraulic cylinder.

Spoil placement: two-way diverter displaces spoils on both sides approximately 12-18” (305-457 mm) from trench; one-way diverter displaces spoils on either left or right side of trench.

Specifications - 148

RT80 Operator’s Manual A523 Backhoe

A523 Backhoe

Dimensions

U.S.

Metric

A

Transport height

108.5 in

2.76 m

C

Ground clearance

31.6 in

800 mm

D

Backhoe length, stowed

57.2 in

1.5 m

F

Digging depth, max.

94.5 in

2.4 m

G

Digging depth, 2’ (0.6 m) flat bottom

93.2 in

2.4 m

J

Operating height, fully raised

147.2 in

3.7 m

K

Loading height

89.2 in

2.3 m

L

Loading reach

56.1 in

1.4 m

M

Reach from swing pivot

142.2 in

3.6 m

N

Swing pivot to centerline axle

42.3 in

1.1 m

P

Bucket rotation

150°

150°

B

Stabilizer spread, transport

67.6 in

1.7 m

E

Backhoe or basic unit width

120 in

3.05 m

R

Stabilizer spread, operating

108.7 in

2.76 m

RT80 Operator’s Manual

Specifications - 149

A523 Backhoe U

Leveling angle

11°

11°

U.S.

Metric

Width

12-18 in

305-460 mm

Capacity

1.7-2.6 ft3

0.05-0.07 m3

2150 lb

975 kg

@ 48” (1.2 m)

1140 lb

517 kg

@ ground level

1080 lb

490 kg

@ 72” (1.8 m)

1090 lb

494 kg

@ 52” (1.3 m)

1749 lb

793 kg

@ 72” (1.8 m)

2020 lb

916 kg

170°

170°

Using bucket cylinder

6500 lb

29 kN

Using dipperstick cylinder

3650 lb

16 kN

0

General Bucket

Backhoe weight with 12” (305-mm) bucket Lift capacity, boom over end and swing arc, SAE*

Lift capacity, dipperstick over end and swing arc, SAE*

Swing arc Digging force

*Lift capacities are for a stationary machine supported by stabilizers.

Specifications - 150

RT80 Operator’s Manual

RT80 Operator’s Manual

Specifications - 151

Specifications - 152

RT80 Operator’s Manual

RT80 Operator’s Manual

Support - 153

Procedure

Support Procedure Notify your dealer immediately of any malfunction or failure of Ditch Witch equipment.

Always give model, serial number, and approximate date of your equipment purchase. This information should be recorded and placed on file by the owner at the time of purchase.

Return damaged parts to dealer for inspection and warranty consideration if in warranty time frame.

Order genuine Ditch Witch replacement or repair parts from your authorized Ditch Witch dealer. Use of another manufacturer's parts may void warranty consideration.

Resources Publications Contact your Ditch Witch dealer for publications and videos covering safety, operation, service, and repair of your equipment.

Ditch Witch Training For information about on-site, individualized training, contact your Ditch Witch dealer.

CMW

RT80 Operator’s Manual

Warranty - 154

Warranty Ditch Witch Equipment and Replacement Parts Limited Warranty Policy Subject to the limitation and exclusions herein, free replacement parts will be provided at any authorized Ditch Witch dealership for any Ditch Witch equipment or parts manufactured by The Charles Machine Works, Inc. (CMW) that fail due to a defect in material or workmanship within one (1) year of first commercial use (Exception: 2 years for all SK5 attachments). Free labor will be provided at any authorized Ditch Witch dealership for installation of parts under this warranty during the first year following “initial commercial” use of the serial-numbered Ditch Witch equipment on which it is installed. The customer is responsible for transporting their equipment to an authorized Ditch Witch dealership for all warranty work.

Exclusions from Product Warranty

•

All incidental or consequential damages.

•

All defects, damages, or injuries caused by misuse, abuse, improper installation, alteration, neglect, or uses other than those for which products were intended.

•

All defects, damages, or injuries caused by improper training, operation, or servicing of products in a manner inconsistent with manufacturer’s recommendations.

•

All engines and engine accessories (these are covered by original manufacturer’s warranty).

•

Tires, belts, and other parts which may be subject to another manufacturer’s warranty (such warranty will be available to purchaser).

•

ALL IMPLIED WARRANTIES NOT EXPRESSLY STATED HEREIN, INCLUDING ANY WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY.

IF THE PRODUCTS ARE PURCHASED FOR COMMERCIAL PURPOSES, AS DEFINED BY THE UNIFORM COMMERCIAL CODE, THEN THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE FACE HEREOF AND THERE ARE NO IMPLIED WARRANTIES OF ANY KIND WHICH EXTEND TO A COMMERCIAL BUYER. ALL OTHER PROVISIONS OF THIS LIMITED WARRANTY APPLY INCLUDING THE DUTIES IMPOSED. Ditch Witch products have been tested to deliver acceptable performance in most conditions. This does not imply they will deliver acceptable performance in all conditions. Therefore, to assure suitability, products should be operated under anticipated working conditions prior to purchase.

Defects will be determined by an inspection within thirty (30) days of the date of failure of the product or part by CMW or its authorized dealer. CMW will provide the location of its inspection facilities or its nearest authorized dealer upon inquiry. CMW reserves the right to supply remanufactured replacements parts under this warranty as it deems appropriate.

Extended warranties are available upon request from your local Ditch Witch dealer or CMW. Some states do not allow exclusion or limitation of incidental or consequential damages, so above limitation of exclusion may not apply. Further, some states do not allow exclusion of or limitation of how long an implied warranty lasts, so the above limitation may not apply. This limited warranty gives product owner specific legal rights and the product owner may also have other rights which vary from state to state.

For information regarding this limited warranty, contact CMW’s Product Support department, P.O. Box 66, Perry, OK 73077-0066, or contact your local Ditch Witch dealer.

First version: 1/91; Latest version: 7/05

CMW

RT80 Operator’s Manual

Service Record - 157

Service Record Service Performed

Date

Hours

CMW

Service Record - 158

Service Performed

CMW

RT80 Operator’s Manual Date

Hours