Komatsu PC1000-1/PC1000LC-1/PC1000SE-SP1 Excavator Workshop Repair Service Manual SEBM021N0107 – PDF

SEBM021

Shop Manual

NO1 07

PC1 0004

PC1

0001t4

PC1

OOOSEml

PC1OOOSP=l HYDRAULIC EXCAVATOR

SERIAL NUMBERS

Pc1000-1 Pc1oooLc-1 PClOOOSEm1 Pc1ooosP-1

- 10001 10001 . 10001 - 10001

n

andup

This material is proprietary to Komatsu America International Company and is not to be reproduced, used, or disclosed except in accordance with written authorization from Komatsu America International Company.

It is our policy to improve our products whenever it is possible and practical to do so. We reserve the right to make changes or add improvements at any time without incurring any obligation to install such changes on products sold previously.

Due to this continuous program of research and development, periodic revisions may be made to this publication.

It is recommended that customers contact their distributor for information on the latest revision.

May 1997

Copyright 1997 Komatsu America International Company

CONTENTS No.of page

10 ENGINE 11

STRUCTURE AND FUNCTION

12

TESTING AND ADJUSTING..

13

DISASSEMBLY

14

MAINTENANCE

. . __. . . . . . . . . . . . . _. . . . . . . . . . . _. . . . . . . . . . . . . . . . . . . .

1 l-l

. . . . . . . . . . . . _. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12-l

. . __. . . . . . . . . . . . . . . . . . . . . _. . . . . . _. . . _. . . . . . . . . . .

13-1

. . . . __. . . . . . . . . . . _. . . . . . . . . . . . . . . . . . . . . . . . . . . _. . . . . .

14-I

AND ASSEMBLY STANDARD

20 POWER TRAIN 21 23 24

STRUCTURE AND FUNCTION ..................................................

DISASSEMBLY AND ASSEMBLY ................................................

MAINTENANCE STANDARD ....................................................

21-1 23-l 24-l

30 UNDERCARRIAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 l-l AND ASSEMBLY . . . . . . . . __. . . . . . . . . . . . . . . . . . . . . . . . . . . _. . . _. . . . . . 33-l STANDARD . . . . . . . . . . . . . . . . . . . . . . . . . _. . . . . . . . . . . . . . . . . . . . . . . . . . 34-1

31

STRUCTURE AND FUNCTION

33

DISASSEMBLY

34

MAINTENAiCE

50 AIR SYSTEM 51 STRUCTURE AND 60 HYDRAULIC 61

s FUNCTION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . _. . . . . . . . . . . . . . . . . . . . . 51-1

SYSTEM

STkUCTURE AND FUNCTION

62

TESTING AND ADJUSTING.

63

DISASSEMBLY

64

MAINTENANCE

..................................................

61-l

....................................................

62-l

AND ASSEMBLY ................................................

STANDARD ....................................................

63-l 64-l

80 ELECTRIC AND ELECTRONIC SYSTEM 81 STRUCTURE AND FUNCTION . . . . . . . . . . . . . . . _. . . . __. . . . . . . . . . . . . . . . . . . _. . . . . . . .

82

TESTING AND ADJUSTING.

_. . . . . . . . . . . . . . . . . . . _. . . . . . . . . . . . . .

81-1 . . . . . . . . . . . . . 82-l

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I 00-2-5 0

SAFETY

SAFETY

NOTICE

SAFETY SAFETY

NOTICE

IMPORTANT SAFETY NOTICE Proper

service

and

repair

is extremely

service and repair techniques are both effective designed

manual.

for the specific

injury to workers,

The cautions

situation

machine

operation.

and described

require the use of tools specially

IS used to mark safety precautions _

these symbols

should

arises or may possibly

always

arise, first consider

in operation

carefully

6. Decide

are extremely

dangerous.

and Maintenance

BEFORE operating

1. Before carrying

care-

safety, and

actions to deal with the situation.

PRECAUTIONS

Read the Operation

in this

be followed

a place

in the repair

keep tools and removed Mistakes

The

in this manual

purpose.

the symbol A

accompanying

fully. If any dangerous take the necessary

GENERAL

for safe

by Komatsu

and safe. Some of these techniques

by Komatsu

To prevent

important

recommended

the machine.

out any greasing

read all the precautions

Manual

workshop

parts. Always

the tools and parts in their correct Always

to keep

places.

keep the work area clean and make

sure that there is no dirt or oil on the floor.

or repairs,

given on the decals

Smoke only in the areas provided

for smok-

ing. Never smoke while working.

which are fixed to the machine.

2. When

carrying

out any operation,

wear safety shoes and helmet. loose work clothes,

always

or clothes with buttons

missing. . Always

wear

safety glasses when

trained,

wear

safety

glasses

hitting

repairs are needed, experienced

when

adding

oil or making

welder

starting

work,

gloves,

out the work,

apron,

al-

hand

shield, cap and other clothes suited for welding work.

blade,

ripper,

bucket or any other work equipment

to the

If this

equipment

is not possible,

from falling.

or more workers,

with two

always agree on the operbefore

starting.

Always

in-

form your fellow workers before starting any step of the operation.

Before starting

work,

REPAIR signs on the controls

in the operator’s

compartment.

in good condition

the correct way to use them.

In addition,

the

be sure

ing signs on them.

the

machine

with

before starting 10. Remove

or assembling, blocks,

jacks

support or stands

work.

all mud and oil from

the steps or

other places used to get on and off the machine. Always steps when Never

and learn

insert

to lock all the control levers and hang warn-

9. When disassembling out any operation

ating procedure

lower

safety pin or use blocks to prevent the work

out welding

5. Keep all tools

the

from moving.

carry

carrying

hang UNDER

and

ground.

welding

carrying

repairs,

or tracks to prevent

block the wheels

8. Before

any

on hard, level ground,

always have a

ways

wear

grind-

etc.

work. When

4. When

7. Before

machine

ing parts with a grinder, 3. If welding

FOR WORK

park the machine

parts with a hammer. . Always

PREPARATIONS

Do not wear

jump

impossible

use the handrails,

getting

ladders

or

on or off the machine.

on or off the machine. to use the handrails,

steps, use a stand to provide

If it is

ladders

or

safe footing.

00-3

SAFETY

SAFETY

PRECAUTIONS

DURING

19. Be sure to assemble

WORK

original 11. When or

removing

hydraulic

the oil filler cap, drain plug pressure

loosen them slowly spurting Before

measuring

to prevent

plugs,

the oil from

or removing

nents of the oil, water the

pressure

or air circuits, completely

first

from

the

and

oil in the

the engine

circuits

is stopped,

are hot

so be careful

for the oil and water

carrying

out any work

to cool

before

on the oil or water

circuits.

20. When sure

installing that

ful when circuits.

high pressure

they

are

installing Also,

the battery.

Always

the negative

(-) terminal

remove

the lead from

check that

use a hoist

protective

aligning

Check that the wire rope, chains and hooks

fingers

caught

lifting

ample

capacity.

Install

the lifting

equipment

Use a hoist to prevent

ting any other

23. When

equipment

which

has

or crane

and operate

the component

hit-

part. Do not work with

any

removing

covers which

ternal

pressure

or under

always

leave two

bolts

from

a

in position

release the pres-

sure, then slowly loosen the bolts to remove.

16. When

removing

to break wiring 17. When

components,

or damage

removing

be careful

the wiring.

may cause electrical piping,

not

Damaged

fires.

stop the fuel or oil

from spilling out. If any fuel or oil drips onto the floor, wipe it up immediately. on the floor

Fuel or oil

can cause you to slip, or can

even start fires.

18. As a general

rule, do not use gasoline

to

wash parts. In particular,

use only the mini-

mum

washing

parts.

00-4

of gasoline

when

or rotate at

careful to check

correctly.

Be careful

not to get your

measuring

hydraulic

pressure,

that the measuring

tool is ccrrectly

bled before taking

any measurements.

electrical

removing

tracks of track-type When

removing

rates suddenly,

are under in-

pressure

sides. Slowly

violently

in a hole.

24. Take care when

from

15. When

on opposite

When

check assem-

at the correct

part still raised by the hoist or crane.

spring,

parts, always torques.

two holes, never insert your

or hand.

are free from damage.

parts

parts such as guards,

be particularly

fingers

use

tightening

or parts which vibrate

22. When

care-

connecting

or installing

use the specified

high speed,

Damaged

so be extremely

installed.

or crane.

Always

is be-

hoses, make

not twisted.

that they are installed

first.

14. When raising heavy components,

places.

be sure

by contact

tubes for high pressure

21 When assembling installing

13. Before starting work, remove the leads from

slowly

parts with new parts.

hoses and wires,

that they will not be damaged

are correctly

not to get burned.

Wait

installing

tubes are dangerous,

water

when

Replace any damaged . When

ing operated.

compo-

circuit.

12. The

all parts again in their

places.

with other parts when the machine

out. disconnecting

remove

NOTICE

or installing

the

machines.

the track,

the track sepa-

so never let anyone stand at

either end of the track.

GENERAL

FOREWORD

FOREWORD GENERAL This

shop

serviceman

manual

has been

an accurate

prepared

as an aid to improve

understanding

repairs and make judgements.

the quality

of the product and by showing

Make sure you understand

of repairs

by giving

the

him the correct way to perform

the contents

of this manual

and use it to full

effect at every opportunity.

This shop manual

mainly

service workshop.

For ease of understanding,

chapters

are further

contains

divided

the necessary

technical

the manual

information is divided

for operations

performed

into the following

in a

chapters; these

into the each main group of components.

STRUCTURE AND FUNCTION This section explains an understanding

the structure

of the structure,

and function

of each component.

but also serves as reference

It serves not only to give

material

for troubleshooting.

TESTING AND ADJUSTING This

section

adjustments

explains

checks

to be made

to be made at completion

Troubleshooting

charts correlating

before

and

after

performing

repairs,

as well

as

of the checks and repairs.

“Problems”

to “Causes” are also included

in this section.

DISASSEMBLY AND ASSEMBLY This section assembling

explains

the order to be followed

each component,

MAINTENANCE

removing,

installing,

disassembling

or

to be taken for these operations.

STANDARD

This section gives the judgement

I

when

as well as precautions

standards

when

inspecting

disassembled

parts.

NOTICE I The

specifications

time

and

with

the

contained

without latest

any

advance

in this notice.

shop

manual

Use the

are subject

specifications

to change given

in the

at any book

date.

00-5

HOW TO READ THE SHOP MANUAL

FOREWORD

HOW TO READ THE SHOP MANUAL VOLUMES

REVISED EDITION MARK

Shop manuals are issued as a guide to carrying out repairs. They are divided as follows:

When

Chassis volume: Issued for every machine model Engine volume: Issued for each engine series

pages.

Electrical volume: Attachments volume:

I

Each issued as one volume to cover all models

These various volumes are designed to avoid duplicating the same information.

Therefore, to deal with all repairs for any model , it is necessary that chassis, engine, electrical and attachment volumes be available.

DISTRIBUTION AND UPDATING Any additions, amendments or other changes will be sent to KOMATSU distributors.

Get the most up-to-date information before you start any work.

a manual

(@@@....I

is revised,

is recorded

an edition

on the

bottom

mark of the

REVISIONS Revised pages are shown in the LIST OF REVISED PAGES next to the CONTENTS page.

SYMBOLS So that the shop manual can be of ample practical use, important safety and quality portions are marked with the following symbols.

FILING METHOD 1. See the page number on the bottom of the page. File the pages in correct order.

2. Following examples show how to read the page number.

Example 1 (Chassis volume):

Symbol

Item

a

Safety

Item number (IO. Structure and Function) Consecutive page number for each item.

Example

3. Additional

pages:

by a hyphen

page number.

Example:

Additional

*

el kg

2 (Engine volume):

Unit number (I. Engine) Item number (2. Testing and Adjusting) Consecutive page number for each item.

Caution

Weight

Weight of parts of systems.

Caution necessary when selecting hoisting wire, or when working posture is important, etc.

Coat

Places to be coated with adhesives and lubricants, etc.

31, water

Places where oil, water or fuel must be added, and the capacity.

after the

File as in the example.

serving standards are necessary when performing the work.

‘ightening Places that require special attention for the tightening torque torque during assembly.

pages are indi-

(-1 and number

Drain

Places where oil or water must be drained, and quantity to be drained.

IO-4

12-203

1 o-5

12-204

00-6

Special safety precautions are necessary when performing the work.

Special technical precautions or other precautions for pre-

10 - 3

cated

Remarks

HOISTING

FOREWORD

HOISTING

INSTRUCTIONS

INSTRUCTIONS

HOISTING Slinging near the edge of the hook may cause the rope to slip off the hook during hoisting, and a serious accident can result.

Hooks have maximum strength at the middle portion.

Heavy parts (25 kg or more) must be lifted with a hoist, etc. In the DISASSEMBLY AND ASSEMBLY section, every part weighing 25 kg or more is indicated clearly with the symbol &

.

If a part cannot be smoothly removed from the machine by hoisting, the following checks should be made: 1) Check for removal

of all bolts fastening

the part to the relative 2) Check for existence ing interference

the

part caus-

part to be re-

moved.

WIRE ROPES I)

Use

adequate

weight

ropes

88%

79%

71%

depending

of parts to be hoisted,

41% SAC00479

of another

with

100%

parts.

on the

referring

to

3) Do not sling a heavy load with one rope alone, but sling with two or more ropes symmetrically wound onto the load.

Slinging with one rope may cause &L turning of the load during hoisting, untwisting of the rope, or slipping of the rope from its original winding position on the load, which can result in a dangerous accident.

the table below: 4)

Wire ropes (Standard “Z” or “S” twist ropes without galvanizing) Rope diameter

*

T

Do not sling a heavy load with ropes forming a wide hanging angle from the hook.

When hoisting a load with two or more ropes, the force subjected to each rope will increase with the hanging angles. The table below shows the variation of allowable load kN (kg) when hoisting is made with two ropes, each of which is allowed to sling up to 9.8 kN II000 kg) vertically, at various hanging angles.

Allowable

load

mm

kN

tons

IO

9.8

1.0

11.2

13.7

1.4

12.5

15.7

1.6

14

21.6

2.2

16

27.5

2.8

suspended.

18

35.3

3.6

(1000

20

43.1

4.4

22.4

54.9

5.6

30

98.1

10.0

40

176.5

18.0

50

274.6

28.0

60

392.2

40.0

When two ropes sling a load vertically, to 19.6 kN {2000 kg) of total weight This weight

kg) when

hanging

angle.

two

becomes

ropes

make

On the other

ropes are subjected

up

can be 9.8 kN a 120”

hand, two

to an excessive

force

as large as 39.2 kN (4000 kg) if they sling a 19.6 kN 12000 kg) load at a lifting angle

The allowable load value is estimated to be one-sixth or one-seventh of the breaking strength of the rope used.

2) Sling wire ropes from the middle of the hook.

portion

30 Lifting

60 angle

90 (deereel

120

150 SADOOCSO

00-7

COATING MATERIALS

FOREWORD

COATING

MATERIALS

*

The recommended coating materials such as adhesives, gasket sealants and greases disassembly and assembly are listed below.

Jr For coating materials not listed below, use the equivalent of products shown in this list.

Category

<omatsu code

Part No.

Q’ty

Container

Main l

LT-1 A

790-129-9030

150 g

Tube

LT-2

790-129-9050

09940-00030

features

prevent rubber gaskets, rubber and cock plug from coming out.

(2 pes.)

‘olyethylene container

Used in places requiring an immediately effective, strong adhesive.

Used for plastics (except polyethylene, polyprophylene, tetrafluoroethlene and vinyl chloride), rubber, metal and non-metal.

50 g

‘olyethylene container

* Features: Resistance to heat and chemicals Used for anti-loosening and sealant purpose for bolts and plugs.

l

LT-1 B

Used to cushions,

applications,

used for

20 9

l

l

Used as adhesive and plastic.

or sealant

for metal,

glass

Can

LT-3

Adhesives LT-4

790-129-9040

250 g

‘olyethylens container

Holtz MH 705

790-126-9120

75 g

Tube

50 g

‘olyethylene container

2 g

‘olyethylene container

l

l

l

Three bond 1735

790-129-9140

+

Loctite 648-50

LG-1

790-129-9130

50 cc

790-129-9010

200 g

‘olyethylene container

Tube

l

-

l

LG-3

790-129-9070

1 kg

Can

sealant

holes.

for

type adhesive 5 sec. to 3 min. for adhesion of metals, and woods.

repair-

hardening

rub-

Quick hardening type adhesive Quick cure type (max. strength after 30 minutes) Used mainly for adhesion of rubbers, plastics and metals.

Features: Resistance to heat, chemicals Used at joint portions subject to high temperatures.

Features: Resistance to heat * Used as sealant for flange surfaces and bolts at high temperature locations, used to prevent seizure.

Used as sealant for heat resistance gasket for high temperature locations such as engine precombustion chamber, exhaust pipe, etc. l

00-8

Quick

machined

* Used as adhesive or sealant for gaskets and packing of power train case, etc. l

Gasket sealant

for

Used as heat-resisting ing engine.

* Used mainly bers, plastics

l

79A-129-9110

as sealant

* Cure time: within

l

Aron-alpha 201

Used

COATING MATERIALS

FOREWORD

Category

Komatsu

code

Part No.

Container

aâ&#x20AC;&#x2122;ty

Main

applications,

features

Features: Resistance to water, oil Used as sealant for flange surface, thread.

Also possible to use as sealant for flanges with large clearance. * Used as sealant for mating surfaces of final drive case, transmission case.

l

.

LG-4

790-129-9020

200 g

l

Tube

.

LG-5

790-129-9080

Polyethylene container

1 kg

l

.

Gasket sealant

LG-6

09940-00011

Tube

250 g

l

l

r

LG-7

Three bond 1211

l

1

Lâ&#x20AC;?-G

l

790-129-9090

1 ogg40-ooo51

09940-00040

G2-LI

SYG2-400LI SYG2-350LI SYG2-400LI-A SYG2-160LI SYGA-16OCNLI

G2-CA

SYG2-400CA SYG2-350CA SYG2-4OOCA-A SYG2-160CA SYGA-1 6OCNCA

100 g

t--

Tube

/

6o g

/

Can

/

200 g

Molybdenum disulphide lubricant

resistance

to heat,

cold Used as sealant for flange surface, tread.

Used as sealant for oil pan, final drive case, etc.

Features:

Silicon

based,

quick

hardening

Various

SYG2-400M

Various

400 g (IO per case)

Used as heat-resisting engine.

sealant

Used as lubricant for sliding vent from squeaking).

for repairing

portion

(to pre-

l

Used to prevent seizure or scuffling of the thread when press fitting or shrink fitting.

Used as lubricant for linkage, bearings, etc.

l

General

Tube

purpose

type

Various

l

Grease

based,

elbows,

etc.

l

LM-P

Silicon

plugs,

pipe

I

l

Molybdenum disulphide lubricant

Features:

threads,

type . Used as sealant for flywheel housing, intake manifold, oil an, thermostat housing,

Tube

150 g

09920-00150

Used as sealant for various joints, flanges.

Used as sealant for tapered nipples of hydraulic piping.

Used for normal bearing at places steam.

temperature, light load in contact with water or

Various

Used for places Belows

with

heavy

load

type

00-9

STANDARD TIGHTENING TORQUE

FOREWORD

STANDARD

TIGHTENING

TORQUE

STANDARD TIGHTENING TORQUES OF BOLTS AND NUTS Use these torques

for metric

bolts and nuts. (Always

use torque

wrench).

Thread diameter of bolt

Width across flats

mm

mm

Nm

6 8 10 12 14

10 13 17 19 22

13.2+ 1.4 31+3 66+7 113~10 177+19

1.35kO.15 3.2kO.3 6.7kO.7 11.5*1 18+2

16 18 20 22 24

24 27 30 32 36

279+30 382f39 549f59 745k83 927f103

28.5f3 39f4 56+6 76k8.5 94.5f 10.5

27 30 33

41 46 50 55 60

1320f140 172Ok190 2210+240 2750+290 3290f340

Thread diameter of bolt

Width across fiats

mm

mm

Nm

6 8 10 12

10 13 14 27

7.85f 1.95 18.6k4.9 40.2+ 5.9 82.35k7.85

km

135f15 175+20 225f25 280f30 335*35

km 0.8kO.2 1.9kO.5 4.1k0.6 8.4k0.8

TIGHTENING TORQUE OF HOSE NUTS Use these torques Nominal

No.

for hose nuts.

Thread

02 03 04 05 06 IO 12 14 TIGHTENING

TORQUE

Use these torques Thread

diameter mm 10 12 16

00-10

diameter 14 18 22 24 30 33 36 42

19 24 27 32 36 41 46 55 FLANGE

for split flange

14 17 22

torque

kgm

Nm 24.5f 4.9 49k 19.6 78.5+ 19.6 137.3f29.4 176.5rt29.4 196.1+49 245.2?49 294.2+49

2.5zkO.5 5k2 8*2 14+3 18+3 2Ok5 251-5 30f5

BOLTS

bolts.

Tightening

across flat mm

Tightening

across flat mm

OFSPLIT

Width

Width

mm

torque

Nm

km

65.7k6.8 112f9.8 279f29

6.7f0.7 11.5+1 28.5f3

STANDARD

FOREWORD

TIGHTENING

TORQUE

OF O-RING

Use these torques Nominal

for O-ring

BOSS CONNECTOR

diameter

Width

mm 02 03,04 05,06 IO,12 14

TIGHTENING

Use these torques

Nominal

TIGHTENING

for O-ring Thread

No.

08 10 12 14 16 18 20 24 30 33 36 42 52

-I

TORQUES

torque

Nm

kgm

34.3+ 4.9

3.5zko.5 9.5*1 14.5+2 43k6 89.5+ 13.5

93.1k9.8 142.1+ 19.6 421.4k 58.8 877.1f 132.3

BOSS CONNECTOR boss connector

diameter

Tightenii

1 Width across fiat

mm

mm

8 10 12 14 16 18 20 24 30 33 36 42 52

14 17 19 22 24 27 30 32 32 -

1 torque

Mm

Nm 7.35* 1.47 11.27+ 1.47 17.64+ 1.96 22.54f1.96 29.4* 4.9 39.2* 4.9 49k 4.9 68.6+9.8 107.8zk14.7 127.4k19.6 151.9+24.5 210.7*29.4 323.4? 44.1

36 -

0.75zko.15 1.15~0.15 1.8k 0.2 2.32 0.2 3kO.5 4kO.5 5kO.5 7&l

Ilk

1.5

13k2 15.5k2.5 21.5k3 33k 4.5

OF FLARE NUT

Use these torques

for O-ring

Thread

Width

diameter

Varies depending on type of connector.

OF O-RING

Tightening

across flat mm

14 20 24 33 42

TORQUE

TORQUE

boss connector

Thread

No.

TIGHTENING

SAW0483

boss connector

across flat

Tightening

torque

mm

mm

Nm

kgm

14 18 22 24 30 33 36 42

19 24 27 32 36 41 46 55

24.5rt4.9 49k 19.6 78.5k19.6 137.3*29.4 176.5k29.4 196.1+49 245.2+49 294.2f49

2.5f0.5 5+2 8+2 14k3 18+3 2Ok5 25k5 30+5

00-l 1

STANDARD

FOREWORD

TIGHTENING

TORQUE

Use these torques Thread

FOR 102 SERIES ENGINE for metric

diameter

Tightening

TORQUE

Thread

TIGHTENING

2 0.20 + 0.41 zk0.61 zk 1.22

(EYE JOINTS)

Tightening Nm 8k2 1052 12+2 24 f 4 36 f 5

FOR 102 SERIES ENGINE for inches tapered

(TAPERED

torque kgm 0.81 1.02 1.22 2.45 3.67

AI0.20 + 0.20 It0.20 AI0.41 ?I0.51

SCREWS)

screws of 102 Series Engine.

diameter 1 / 16 l/8 l/4 318 112 314 1

1.02 2.45 4.38 7.85

for metric eye joints of 102 Series Engine.

6 8 10 12 14

inches

00-12

FOR 102 SERIES ENGINE

knm

XL2 f 4 + 6 z!z12

mm

TORQUE

Thread

10 24 43 77

diameter

Use these torques

torque

Nm

6 8 10 12

Use these torques

NUTS)

bolts and nuts of 102 Series Engine.

mm

TIGHTENING

(BOLT AND

TIGHTENING

Tightening Nm 3+1 8+2 12 +2 15 f 2 24 f 4 36 A 5 60 + 9

torque kgm 0.31 0.81 1.22 1.53 2.45 3.67 6.12

+ 0.10 + 0.20 f 0.20 * 0.41 k 0.41 rk0.51 5 0.92

TORQUE

ELECTRIC WIRE CODE

FOREWORD

ELECTRIC WIRE CODE In the wiring diagrams, various colors and symbols are employed to indicate the thickness of wires.

This wire code table will help you understand WIRING DIAGRAMS. Example: 5WB indicates a cable having a nominal number 5 and white coating with black stripe.

CLASSIFICATION

BY THICKNESS

Copper wire Cat$OiD.

Nominal number

N;tTav&of

Dia. Tf s$ndsCroy m

Currey;;ating

Applicable

se?tion

circuit

m

0.85

11

0.32

0.88

2.4

12

Starting,

lighting,

2

26

0.32

2.09

3.1

20

Lighting,

signal

5

65

0.32

5.23

4.6

37

Charging

and signal

15

84

0.45

13.36

7.0

59

Starting

40

85

0.80

42.13

11.4

135

Starting

60

127

0.80

63.84

13.6

178

Starting

100

217

0.80

17.6

230

Starting

CLASSIFICATION

109.1

signal

etc.

etc.

(Glow

plug)

BY COLOR AND CODE

Circuits Priority

Ground

Charging

Iassiication \

I

Starting

Code man/Color t White

-

Code

& Red

WB

1

Instrument

BW

-

Black &Whit{

-

1

-

(Black & Yello\i

By

Other

Signal

I

pri_

WR

Lighting

I

I

R

Y

G

L

Red

Yellow

Green

Blue

RW

YR

GW

LW

Red & White

lellow

& Red Green &White YB

RB

Blue &White LR

GR

3

t Color \,,,+ Code iary

t Color

White & Black1

Red & Black

lellow & Black Green

YG

RY Red & Yellow

GY

Blue & Red

I

LY

‘ellow & Green Green & Yellow Blue & Yellow

RG Red & Green

I

& Red

YL ‘ellow

GB

LB

& Blue Green & Black Blue & Black

RL

YW

Red & Blue

ellow &White

GL Green

& Blue

-

00-l 3

CONVERSION TABLE

FOREWORD

CONVERSION

TABLE

METHOD OF USING THE CONVERSION TABLE The Conversion details

Table

of the method

in this section

EXAMPLE . Method of using the Conversion 1.

Convert

is provided

of using the Conversion

to enable

simple

conversion

Table, see the example

Table to convert from millimeters

of figures.

For

given below.

to inches

55 mm into inches.

11) Locate the number 50 in the vertical column at the left side, take this as @, then draw a horizontal line from @.

(2) Locate the number

5 in the row across the top, take this as @, then draw a perpendicular

line

down from @.

(3) Take the point where the two lines cross as 0. from millimeters 2.

to inches.

Therefore,

This point @ gives the value when converting

55 mm = 2.165 inches.

Convert 550 mm into inches.

(1) The number 550 does not appear in the table, so divide by 10 (move the decimal point one place to the left) to convert it to 55 mm.

(2) Carry out the same procedure

as above to convert 55 mm to 2.165 inches.

(3) The original value (550 mm) was divided by 10, so multiply 2.165 inches by 10 (move the decimal point one place to the right) to return to the original value. This gives 550 mm = 21.65 inches.

Millimeters

0 10 20 30 40

to inches

1 mm = 0.03937 in

0

1

2

3

4

5;

6

7

8

9

0 0.394 0.787 1.181 1.575

0.039 0.433 0.827 1.220 1.614

0.079 0.472 0.866 1.260 1.654

0.118 0.512 0.906 1.299 1.693

0.157 0.551 0.945 1.339 1.732

0.197; 0.591 ; 0.984; 1.378: 1.772; @ i

0.236 0.630 1.024 1.417 1.811

0.276 0.669 1.063 1.457 1.850

0.315 0.709 1.102 1.496 1.890

0.354 0.748 1.142 1.536 1.929

2.205 2.598 2.992 3.386 3.780

2.244 2.638 3.032 3.425 3.819

2.283 2.677 3.071 3.465 3.858

2.323 2.717 3.110 3.504 3.898

.. . .. . . . . . . . ..2.126 . . . . . . .. . . . . 12.1651 . .. .. . . . . .. . . .2.008 . . .. . .. . .. .. . .2.047 . . . . .. . . . .. . . . 2.087 . .. .50 .. .. . .. .. . ..1.969 2.480 2.520 2.559 2.362 2.402 2.441 60 2.874 2.913 2.953 2.756 2.795 2.835 70 3.268 3.307 3.346 3.150 3.189 3.228 80 3.661 3.701 3.740 3.543 3.583 3.622 90

00-14

CONVERSION TABLE

FOREWORD

Millimeters

to Inches 1 mm = 0.03937

O

1112 I3 !

4

I5 I6 I7 i8

in

9

0

0.039

0.079

0.118

0.157

0.197

0.236

0.276

0.315

0.354

IO

0.394

0.433

0.472

0.512

0.551

0.591

0.630

0.669

0.709

0.748

20

0.787

0.827

0.866

0.906

0.945

0.984

1.024

1.063

1.102

1.142

30

1.181

1.220

1.260

1.299

1.339

1.378

1.417

1.457

1.496

1.536

40

1.575

1.614

1.654

1.693

1.732

1.772

1.811

1.850

1.890

1.929

50

1.969

2.008

2.047

2.087

2.126

2.165

2.205

2.244

2.283

2.323

60

2.362

2.402

2.441

2.480

2.520

2.559

2.598

2.638

2.677

2.717

70

2.756

2.795

2.835

2.874

2.913

2.953

2.992

3.032

3.071

3.110

80

3.150

3.189

3.228

3.268

3.307

3.346

3.386

3.425

3.465

3.504

90

3.543

3.583

3.622

3.661

3.701

3.740

3.780

3.819

3.858

3.898

0

Kilogram to Pound

0

1 ka = 2.2046 lb

0

1

2

3

4

0

2.20

4.41

6.61

8.82

11.02

13.23

15.43

17.64

19.84

5

6

7

8

9

10

22.05

24.25

26.46

28.66

30.86

33.07

35.27

37.48

39.68

41.89

20

44.09

46.30

48.50

50.71

51.91

55.12

57.32

59.53

61.73

63.93

30

66.14

68.34

70.55

72.75

74.96

77.16

79.37

81.57

83.78

85.98

40

88.18

90.39

92.59

94.80

97.00

99.21

101.41

103.62

105.82

108.03

50

110.23

112.44

114.64

116.85

119.05

121.25

123.46

125.66

127.87

130.07

60

132.28

134.48

136.69

138.89

141.10

143.30

145.51

147.71

149.91

152.12

70

154.32

156.53

158.73

160.94

163.14

165.35

167.55

169.76

171.96

174.17

80

176.37

178.57

180.78

182.98

185.19

187.39

189.60

191.80

194.01

196.21

90

198.42

200.62

202.83

205.03

207.24

209.44

211.64

213.85

216.05

218.26

00-l5

FOREWORD

CONVERSIONTABLE

Literto U.S. Gallon

0

lf!= 0.2642 U.S. Gal 1

2

3

8

9

0

0.264

0.528

0.793

1.057

1.321

1.585

1.849

2.113

2.378

10

2.642

2.906

3.170

3.434

3.698

3.963

4.227

4.491

4.755

5.019

20

5.283

5.548

5.812

6.076

6.340

6.604

6.869

7.133

7.397

7.661

30

7.925

8.189

8.454

8.718

8.982

9.246

9.510

9.774

10.039

10.303

40

10.567

10.831

11.095

11.359

11.624

11.888

12.152

12.416

12.680

12.944

50

13.209

13.473

13.737

14.001

14.265

14.529

14.795

15.058

15.322

15.586

60

15.850

16.115

16.379

16.643

16.907

17.171

17.435

17.700

17.964

18.228

70

18.492

18.756

19.020

19.285

19.549

19.813

20.077

20.341

20.605

20.870

80

21.134

21.398

21.662

21.926

22.190

22.455

22.719

22.983

23.247

23.511

90

23.775

24.040

24.304

24.568

24.832

25.096

25.361

25.625

25.889

26.153

0

4

5

6

7

Literto U.K. Gallon

0

It = 0.21997 U.K. Gal 1

2

3

4

5

6

7

8

9

0

0.220

0.440

0.660

0.880

1.100

1.320

1.540

1.760

1.980

10

2.200

2.420

2.640

2.860

3.080

3.300

3.520

3.740

3.950

4.179

20

4.399

4.619

4.839

5.059

5.279

5.499

5.719

5.939

6.159

6.379

30

6.599

6.819

7.039

7.259

7.479

7.969

7.919

8.139

8.359

8.579

40

8.799

9.019

9.239

9.459

9.679

9.899

10.119

10.339

0.559

10.778

50

10.998

11.281

11.438

11.658

11.878

12.098

12.318

12.528

2.758

12.978

60

13.198

13.418

13.638

13.858

14.078

14.298

14.518

14.738

4.958

15.178

70

15.398

15.618

15.838

16.058

16.278

16.498

16.718

16.938

17.158

17.378

80

17.598

17.818

18.037

18.257

18.477

18.697

18.917

19.137

19.357

19.577

90

19.797

20.017

20.237

20.457

20.677

20.897

21.117

21.337

21.557

21.777

0

00-16

CONVERSIONTABLE

FOREWORD

kgm to ft. lb 1 kgm = 7.233 ft. lb

0

1

3

2

4

5

6

7

8

9

\ 7.2

14.5

21.7

28.9

36.2

43.4

50.6

57.9

65.1

72.3

79.6

86.8

94.0

101.3

108.5

115.7

123.0

130.2

137.4

20

144.7

151.9

159.1

166.4

173.6

180.8

188.1

195.3

202.5

209.8

30

217.0

224.2

231.5

238.7

245.9

253.2

260.4

267.6

274.9

282.1

40

289.3

296.6

303.8

311.0

318.3

325.5

332.7

340.0

347.2

354.4

50

361.7

368.9

376.1

383.4

390.6

397.8

405.1

412.3

419.5

426.8

60

434.0

441.2

448.5

455.7

462.9

470.2

477.4

484.6

491.8

499.1

70

506.3

513.5

520.8

528.0

535.2

542.5

549.7

556.9

564.2

571.4

80

578.6

585.9

593.1

600.3

607.6

614.8

622.0

629.3

636.5

643.7

90

651.0

658.2

665.4

672.7

679.9

687.1

694.4

701.6

708.8

716.1

100

723.3

730.5

737.8

745.0

752.2

759.5

766.7

773.9

781.2

788.4

110

795.6

802.9

810.1

817.3

824.6

831.8

839.0

846.3

853.5

860.7

120

868.0

875.2

882.4

889.7

896.9

904.1

911.4

918.6

925.8

933.1

130

940.3

947.5

954.8

962.0

969.2

976.5

983.7

990.9

998.2

1005.4

140

1012.6

1019.9

1027.1

1034.3

1041.5

1048.8

1056.0

1063.2

070.5

1077.7

150

1084.9

1092.2

1099.4

1106.6

1113.9

1121.1

1128.3

1135.6

142.8

1150.0

160

1157.3

1164.5

1171.7

1179.0

1186.2

1193.4

1200.7

1207.9

215.1

1222.4

170

1129.6

1236.8

1244.1

1251.3

1258.5

1265.8

1273.0

1280.1

1287.5

1294.7

180

1301.9

1309.2

1316.4

1323.6

1330.9

1338.1

1345.3

1352.6

1359.8

1367.0

190

1374.3

1381.5

1388.7

1396.0

1403.2

1410.4

1417.7

1424.9

1432.1

1439.4

0

0

10

-

-

-

00-17

FOREWORD

kg/cm2

CONVERSIONTABLE

to lb/in2 lkg/cm*

0

3

14.2

28.4

42.7

56.9

71.1

85.3

99.6

113.8

128.0

5

6

7

8

lb/in*

2

1

4

= 14.2233

9

0

0

IO

142.2

156.5

170.7

184.9

199.1

213.4

227.6

241.8

256.0

270.2

20

284.5

298.7

312.9

327.1

341.4

355.6

369.8

384.0

398.3

412.5

30

426.7

440.9

455.1

469.4

483.6

497.8

512.0

526.3

540.5

554.7

40

568.9

583.2

597.4

611.6

625.8

640.1

654.3

668.5

682.7

696.9

50

711.2

725.4

739.6

753.8

768.1

782.3

796.5

810.7

825.0

839.2

60

853.4

867.6

881.8

896.1

910.3

924.5

938.7

953.0

967.2

981.4

70

995.6

1010

1024

1038

1053

1067

1081

1095

1109

1124

80

1138

1152

1166

1181

1195

1209

1223

1237

1252

1266

90

1280

1294

1309

1323

1337

1351

1365

1380

1394

1408

100

1422

1437

1451

1465

1479

1493

1508

1522

1536

1550

110

1565

1579

1593

1607

1621

1636

1650

1664

1678

1693

120

1707

1721

1735

1749

1764

1778

1792

1806

1821

1835

130

1849

1863

1877

1892

1906

1920

1934

1949

1963

1977

140

1991

2005

2020

2034

2048

2062

2077

2091

2105

2119

150

2134

2148

2162

2176

2190

2205

2219

2233

2247

2262

160

2276

2290

2304

2318

2333

2347

2361

2375

2389

2404

170

2418

2432

2446

2460

2475

2489

2503

2518

2532

2546

180

2560

2574

2589

2603

2617

2631

2646

2660

2674

2688

190

2702

2717

2731

2745

2759

2773

2788

2802

2816

2830

200

2845

2859

2873

2887

2901

2916

2930

2944

2958

2973

210

2987

3001

3015

3030

3044

3058

3072

3086

3101

3115

220

3129

3143

3158

3172

3186

3200

3214

3229

3243

3257

230

3271

3286

3300

3314

3328

3343

3357

3371

3385

3399

240

3414

3428

3442

3456

3470

3485

3499

3513

3527

3542

00-18

CONVERSION TABLE

FOREWORD

Temperature Fahrenheit-Centigrade Conversion

; a simple way to convert a Fahrenheit temperature reading into a Centigrade tempera-

ture reading or vice versa is to enter the accompanying table in the center or boldface column of figures.

These figures refer to the temperature in either Fahrenheit or Centigrade degrees.

If it is desired to convert from Fahrenheit to Centigrade degrees, consider the center column as a table of Fahrenheit temperatures and read the corresponding Centigrade temperature in the column at the left.

If it is desired to convert from Centigrade to Fahrenheit degrees, consider the center column as a table of Centigrade values, and read the corresponding Fahrenheit temperature on the right.

1°C = 33.8”F

“C

“F

“C

OF

“C

“F

“C

“F

-40.4

-40

-40.0

-11.7

11

51.8

7.8

46

114.8

27.2

81

117.8

-37.2

-35

-31.0

-11.1

12

53.6

8.3

47

116.6

27.8

82

179.6

-34.4

-30

-22.0

-10.6

13

55.4

8.9

48

118.4

28.3

83

181.4

-31.7

-25

-13.0

-10.0

14

57.2

9.4

49

120.2

28.9

84

183.2

-28.9

-20

-4.0

-9.4

15

59.0

10.0

50

122.0

29.4

85

185.0

-28.3

-19

-2.2

-8.9

16

60.8

10.6

51

123.8

30.0

86

186.8

-27.8

-18

-0.4

-8.3

17

62.6

11.1

52

125.6

30.6

87

188.6

-27.2

-17

1.4

-7.8

18

64.4

11.7

53

127.4

31.1

88

190.4

-26.7

-16

3.2

-7.2

19

66.2

12.2

54

129.2

31.7

89

192.2

-26.1

-15

5.0

-6.7

20

68.0

12.8

55

131.0

32.2

90

194.0

-25.6

-14

6.8

-6.1

21

69.8

13.3

56

132.8

32.8

91

195.8

-25.0

-13

8.6

-5.6

22

71.6

13.9

57

134.6

33.3

92

197.6

-24.4

-12

10.4

-5.0

23

73.4

14.4

58

136.4

33.9

93

199.4

-23.9

-11

12.2

-4.4

24

75.2

15.0

59

138.2

34.4

94

201.2

-23.3

-10

14.0

-3.9

25

77.0

15.6

60

140.0

35.0

95

203.0

-22.8

-9

15.8

-3.3

26

78.8

16.1

61

141.8

35.6

96

204.8

-22.2

-8

17.6

-2.8

27

80.6

16.7

62

143.6

36.1

97

206.6

-21.7

-7

19.4

-2.2

28

82.4

17.2

63

145.4

36.7

98

208.4

-21.1

-6

21.2

-1.7

29

84.2

17.8

64

147.2

37.2

99

210.2

-20.6

-5

23.0

-1.1

30

86.0

18.3

65

149.0

37.8

196

212.0

-20.0

-4

24.8

-0.6

31

87.8

18.9

66

150.8

40.6

105

221.0

-19.4

-3

26.6

0

32

89.6

19.4

67

152.6

43.3

110

230.0

-18.9

-2

28.4

0.6

33

91.4

20.0

68

154.4

46.1

115

239.0

-18.3

-1

30.2

1.1

34

93.2

20.6

69

156.2

48.9

120

248.0

0

32.0

1.7

35

95.0

21.1

70

158.0

51.7

125

257.0

-17.2

1

33.8

2.2

36

96.8

21.7

71

159.8

54.4

130

266.0

-16.7

2

35.6

2.8

37

98.6

22.2

72

161.6

57.2

135

275.0

-16.1

3

37.4

3.3

38

100.4

22.8

73

163.4

60.0

140

284.0

-15.6

4

39.2

3.9

39

102.2

23.3

74

165.2

62.7

145

293.0

-15.0

5

41.0

4.4

40

104.0

23.9

75

167.0

65.6

150

302.0

-14.4

6

42.8

5.0

41

105.8

24.4

76

168.8

68.3

155

311.0

-13.9

7

44.6

5.6

42

107.6

25.0

77

170.6

71.1

160

320.0

-13.3

8

46.4

6.1

43

109.4

25.6

78

172.4

73.9

165

329.0

-12.8

9

48.2

6.7

44

111.2

26.1

79

174.2

76.7

170

338.0

-12.2

10

50.0

7.2

45

113.0

26.7

80

176.0

79.4

175

347.0

-17.8

Unit: kg 1 OOOLC, 1 OOOSE- 1

PC 1000,

Machine model Serial No.

10001

and up LOADING SHOVEL

BACK HOE

Specification Track shoe assembly l

Standard shoe (7 10 mm)

l

Optional wide shoe (910 mm)

l

Optional wide shoe (I 010 mm)

l

Optional wide shoe (I 2 10 mm)

10.750x2

10.750x2 < 10,200x2 > 13,030 x 2 13,870

x21

x 2 [I 4,450 [I 6,150

x

13,030

x2

13,870

x2

21

Boom assembly (Excluding pin, piping)

8,950

< 8,530

>

5,600

Arm assembly (Excluding piping)

2,950

< 3,680

>

4,090

Bucket assembly (Excluding piping)

3,790

< 5,200

>

7,710

Arm cylinder assembly Bucket cylinder assembly

1,280

1.140x2

Boom cylinder assembly

610x2

1,360 980

< 1,030

>

710x2 165x2

Bottom dump cylinder assembly Boom foot pin

67 x 2

67x2

Boom cylinder bottom pin

44x2

44x2

Boom cylinder head pin

44x2

44x2

136

82x2

Arm cylinder bottom pin

72

32x2

Arm cylinder head pin

72

26x2

Link-arm connection pin

82

53x2

Boom-arm connection pin

46x2

Link-bucket connection pin Bucket cylinder head pin Arm-bucket

53x2

82

66x2

connection pin

50x2

Bucket cylinder bottom pin Front link assembly (Including bushing, seal) Rear link assembly

x2

385 98x2

< 415

< 106x2

167x2

>

77x4

>

*

1 <

1: Pc1oooLc-1 >: PCIOOOSE-1

z z z 0

Unit: kg Machine model

I

Serial No.

Pc1ooosP-1 10351 and up

Specification

I

BACK HOE

Engine assembly 2,710

l

Engine

l

PTO (Including lubrication piping)

l

Main piston pump

l

Swing piston pump

150

l

Tandem gear pump

20

500 200 x 2

740

Radiator and oil cooler assembly (Excluding fan) Hydraulic oil tank (Excluding hydraulic oil)

I

580

Fuel tank (Excluding fuel)

I

450

Revolving frame (Including L.H. and R.H. platform)

I

8,000 310

Operatorâ&#x20AC;&#x2122;s cab Swing machinery

495 x 2

Swing motor

125 x 2

Travel motor (Including brake valve)

I

Swing control valve

I

I

L.H. 5-spool control valve

190x 110

245

R.H. 4-spool control valve

240

Center swivel joint assembly

150

Counterweight

(Excluding mounting

4

13,930

bolt)

Track frame assembly 3,800 x 2

l

Track frame

l

Carrier roller

l

Track roller

170 x 16

l

Idler cushion assembly

305 x 2

l

Idler assembly (Including idler support)

670 x 2

l

Final drive assembly

l

Swing circle assembly (Excluding mounting

l

Center frame

75 x 6

1,770 x 2 bolt)

1,410 7,000

Unit: kg Machine model

Pc1ooosP-1

Serial No.

10351 and up

Specification

BACK HOE

Track shoe assembly l

Standard shoe (710 mm)

I

10,750 x 2

l

Optional wide shoe (910 mm)

13,030 x 2

l

Optional wide shoe (1010 mm)

13,870 x 2

Boom assembly (Excluding pin, piping)

8,680

Arm assembly (Excluding piping)

3,880

Bucket assembly (Excluding piping)

5,200 1,140 x 2

Boom cylinder assembly

1,360

Arm cylinder assembly

980

Bucket cylinder assembly Bottom dump cylinder assembly Boom foot pin

67 x 2

Boom cylinder bottom pin

I

44 x 2

Boom cylinder head pin Boom-arm

44 x 2

136

connection pin

Arm cylinder bottom pin

93

Arm cylinder head pin

72

Link-arm connection pin

82

Link-bucket connection

90

pin

82

Bucket cylinder head pin Arm-bucket

connection

pin

Bucket cylinder bottom pin Front link assembly (Including bushing, seal) Rear link assembly

00622

I

102 57 385 98 x 2

ENGINE 11

STRUCTURE

AND FUNCTION

.....................

PTO (Power Take-Off) PTO lubrication system .....................

Auto-deceleration system (if equipped)

11-2 ......

1 l-3 1 l-4

H

zl 0

11-l

PTO (Power

Take-Off)

Section 8 - 6

SectionC-C

No. 2 pump shaft center (HPV160 + 160)

Crankstyaft center

No. 1 pump shaft center (HPVl60 + 160)

/

I SectionA-A

Swing pump &aft center (HPVSO + 90)

Charging and PTO lubrication pump shaft center (SAL080 + 010) 21NF01001

1. Driven gear (No. of teeth: 40) 2.

3.

4.

5.

6.

7.

PTO case Drive gear (No. of teeth: 47) Main shaft Connecting plate Driven gear (No. of teeth: 36) Driven gear (No. of teeth: 35)

8. Cover 9. Breather 10. Drain plug

11-2

SPECIFICATIONS Reduction ratio: HPVl60 + 160 pump shaft =g HPVSO + 90 pump shaft =g SAL080

+ 010 pump shaft =g=

= 0.85 1 = 0.745 0.766

Volume of lubrication oil: 16 R(Engine oil CLASS-CD

SAE30 or SAEl OW)

PTO LUBRICATION

Hydraulic

SYSTEM

circuit diagram Dividing block _-

PTO lubrication SAL010 Strainer

PTO case

209F3003

Hydraulic

piping

2lNF01002

1.

2.

3.

PTO case Dividing block Lubrication piping

4.

5.

Oil filter Charging and PTO lubrication pump (SAL080

+ 010)

11-3

*

AUTO-DECELERATION

FOR MACHINE

EQUIPPED

WITH

AUTO-DECELERATION

SYSTEM

SYSTEM

Engine running, all control levers at “Neutral”

i SAGD170 engine

i

I

I

7 ----------___ 9 --------------__d

rl

I a ?

2lNFOl003

1.

2.

3.

4: 5.

6.

7.

8.

9.

Charging pump Solenoid valve Decelerator cylinder Loose spring Engine control governor lever Fuel control lever Control box Auto-deceleration switch PPC oil pressure switch

10. L.H. PPC valve 11. Travel PPC valve 12. R.H. PPC valve

11-4

Function When all the control levers are at “neutral”, such as when waiting to start work, the auto-deceleration system automatically moves the engine governor lever back to the “middle idling” position (“DECELERATION” position) even if the fuel control lever is at the “Full speed” position. This reduces the engine speed and also reduces fuel consumption and noise.

+

FOR MACHINE

EQUIPPED

WITH

AUTO-DECELERATION

SYSTEM

OPERATION 1. Engine running, control levers at NEUTRAL I)

When fuel control lever (6) is set to the FULL position and the control levers are returned to NEUTRAL, the hydraulic pressure in the PPC circuit does not act on oil pressure switch (91, so the switch is closed.

For this reason, an electric current flows to control box (7) and the control box sends out an electric current to excite SOLA (2).

When the solenoid valve is switched, pressure oil from charging pump (I) acts on decelerator cylinder (3). The cylinder extends and engine control governor lever (5) is moved back to the No. 1 deceleration position. (Fig. I) When this happens, loose spring (4) is compressed, so fuel control lever (6) is not moved back. The engine speed at this point is 1,600 - 1,800 rpm (No. 1 deceleration speed).

F21N01001

(Fig. I)

2)

When 0.14 seconds have passed after the levers were moved to NEUTRAL, the electric signal from control box is cut, and solenoid valve (2) is switched. When the solenoid valve is switched, the pressure oil from charging pump (I 1 and the drain oil from the decelerator cylinder (3) are shut off, so engine control governor lever (5) is held at No. 1 deceleration position for about 4 seconds.

i 9 E

3

9

---------_---__,

?_________________-_____________- ,

Q 7

#usâ&#x20AC;&#x2DC;v~*â&#x20AC;&#x2DC;;: mwe_*_*

4

8

F2lN01002

(Fig. 2)

1 l-5

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