Kubota kx71 3 excavator service repair manual by 163757

General

KX61-3, KX71-3 WSM

A. Body and engine identification marks

If trouble should occur during use, or if servicing is necessary, contact the dealer who handles the machine. At that time please inform the machine model and engine type and serial numbers.

(1 )Machine serial number & plate

1BAAEANAP009A

(1)Machine serial numbe

KllBOTA Corooration 2~7;ShikitlU"igashi l-Q\ote,

(

Niniwa-ku, Osaka. 556-8601 JAPAN MODEL SERIAL No.1 I MASS kg MAX. DRAW BAL...R-PUL"LI====::;lkN POWER kW MAX. VERT. LOAD I IkN

!ATIONI MANUFACTURED

(2)Engine serial number YEAR L...I_ _----I

(2) Engine serial number

1BAABAAAP288A

e.g. D1503-2L0025 "2" indicates year of 2002 and "L" indicates

June.

So, 2L indicates that the engine was manufac

tured in June 2002.

KTC. KCL, KTA version

~lUl~(Q)ii£6\ <C®~@l1'!lft~@1l1l 247, Shi~tsuhigasi 1·Chome, Naniwa-ku, Osaka,556-8601 JAPAN

Name plate: Code No. RA018-57721

No.

Items

Machine model Serial No. Engine No.

PRODUCT IDENTIFICATION No.

( 2)

Contents· Example KX71-3

10001

I-S-3

General

KX71-3 WSM

B. Safety precautions for servicing, disassembly and reassembly

Safety precautions for servicing

Most accidents during servicing arise from carelessness. Please remember that Safety involves both the welfare of the employees and improved work efficiency.

Safety precautions for Disassembly and reassembly

Machines must be disassembled and assembled effiCiently and safely.

It is very important to thoroughly understand the construction and function of the machine, to make all

appropriate preparations, and start operations according to the specified working procedures.

a. Safety measures before starting work (1 ) Work clothes 1. Wear specified work cap and clothed. (Under no circumstances may workers wear undershirts only.) Cuffs must be kept buttoned, and any tears must be mended.) 2. Wear safety shoes. 3. Do not wear cotton gloves when working on the internal section of engine, reduction gears or hydrauric units for repair or others, or when using a hammer. Wear leather gloves, however, when hoisting wires.

3. Wear a helmet when working with a crane or at elevated locations.

(2) Team work 1. When working with two or more people, divide the work and maintain close communication. 2. Crane work must be carried out using predetermined signals.

(3) Disassembly and assembly 1. Do not wear gloves when using hammers. 2. Use rods of the speCified soft material for removing pins. Do not use a hammer as a pad. 3. Do not place fingers in holes when centering. 4. Heavy parts must be adequately supported before removing bolts.

(2) Inspecting equipment and tools 1. Prepare equipment (cranes, fork lifts, tool, etc.) required for servicing and inspect for any problems before starting work. 2. Hammer heads (metal parts) must be firmly secured to their handles. 3. Check hosting tools (wire ropes, hOisting chains, etc.) before use.

(4) Cranes 1. In principle, use a crane for objects heavier than 44lb (20kg). 2. Crane operation and hOisting must be performed only by qualified personal. 3. Pay careful attention to the center of gravity when hOisting, and do not stand under the lifted objects.

(3) Keep workshop in order 1. Secure appropriate space needed for disassembly to the job. 2. Secure a clean, safe place for arranging disassembled parts. 3. Store volatile substances (gasoline, light oil, thinner, oily articles, etc.) in appropriate containers at selected locations to prevent fire hazards.

(5) Others 1. To work under a jacked-up carrier, be sure to place wood pieces under it. 2. When charging batteries, make sure there are no open flames in the immediate vicinity. 3. All electric tools must be grounded. 4. Before welding the machine, remove the battery. â&#x20AC;˘ When removing the battery, be sure to disconnect negative (-) cord first. â&#x20AC;˘ When mounting the battery, be sure to connect the positive (+) cord first.

b. Safety measures during work (1) Protectors 1. Wear goggles when using chisels for chipping. 2. Use appropriate protectors during welding.

I-S-4

General

KX61-3, KX71-3 W5M

c. Preparation for disassembly (1) Cleaning Remove mud and dirt from the body before disassembly.

(2) Acceptance inspection The machine must be checked before it is disassembled to record existing conditions, such as those listed below.

Model, serial number, and hourmeter reading

• Reason for repair and repair history • Element stains • Fuel and oil condition • Parts damage *(Take photographs if necessary.)

(3) Equipment and tools prepare equipment, tools, cranes and parts storage racks as required.

d. Precautions for disassembly and reassembly (1) Disassembly 1. Follow the specified disassembly procedures. 2. Make alignment marks to insure correct reassembly. 3. Arrange disassembled parts in an orderly way, and attach identification tags or put marks if needed.

(2) Reassembly 1. Clean all parts before assembly. Repair any scratches or dents. Take special precautions against dirt and dust. 2. Parts with rust-preventive coatings must be assembles only after removing the coating. 3. Separated parts must be correctly reassembled using alignment marks. 4. As a rule, use a press to reassembled bearings, bushing and oil seals. Use pads when using a hammer.

1-5-5

KX61-3, KX71-3 WSM

General

C.IMPORTANT SAFETY PROCESS AND CRITICAL FUNCTIONAL PROCESS The following instructions are related to essential adhesives, important safety process I]] and critical functional process ~ .Pay special attention in servicing these process. (Pay also close attention in reconnecting the electrical cables.)

a. Essential Adhesives Type of screw adhesive • Unless otherwise specified, use Three-Bond 1324 adhesive (medium-duty type). Keep the screw threads free of oil and water.

Type of instantaneous adhesive

• Use Three-Bond 1733 or Three-Bond 1741 E adhesive.

Keep the bond areas free of oil and water.

b. Important Safety Process ~ . 1. Reconnecting the fuel hose (clearance, hose routes, clamps, etc.) 2. Electrical cabling (engine, instrument panel, seat stand, etc.) (wiring routes, clamps and couplers)

c. Important Critical Functional Process ~ . 1. 2. 3. 4.

Setting up the travel wheel motor (tightening torque) Reassembling the rotary jOints Goint direction and shaft set-up) Installing the swivel base bearing and the swivel motor (tightening torque) Fitting the pump couplings (tightening torque)

D.IMPORTANT INSPECTION ITEMS AFTER REASSEMBLING a Operate the Machine and check for Unusual Noise and Vibrations. b Make Sure the Safety decals and Wireharness Clamps are in their Specified Positions. c With the Machine Front in a Specified Posture, Check the Amount of Hydraulic Oil Checking the oil level (For further details, refer to the Operator's Manual of each model.) (1) Park the machine on a level ground. (2) Make sure the hydrauric oil temperature is in the range of 10-30°C (50-86°F) and see if the oil level is within the specified zone of the oil level gauge. (3) Keep the machine front as shown as following posture. Posture: Extend the rods of the arm and bucket cylinders nearly

half. Place the bucket on the ground, the offset swing at

the center, and the dozer also on the ground.

1-8-6

KX61-3, KX71-3 WSM

General

E.SERVICING FUNDAMENTALS

Locking adhesive

a. Items for Servicing (1) Tighten bolts, nuts, adapters,and similar parts to their specified torques which are given in the list of tightening torques and adhesive as well as in this manual. Be sure to observe the specified torques for important tightened parts and components. (2) Wipe out water, oil and grease off the screws on which LOCTITE adhesive is to be applied. Be sure to apply the adhesive to specified locations. Types of screw adhesive Equivalent to LOCTITE 271 (Heavy-duty) Equivalent to THREE-BOND 1305P (Heavy-duty) Equivalent to THREE-BOND TB1401 B (Light-duty) Unless specified otherwise, use THREE-BOND 1324 (Medium-duty).

Type of instantaneous adhesive Use THREE-BOND 1733 or 1741E

The word "LOCTITE" in this manual denotes the red-color type. (3) Precautions in disassembling the hydraulic equipment • Use a vacuum pump, plugs, oil pans, waste cloth and the like to prevent oil from running out or splashing. Wipe out leaking oil completely first and then add oil as required. • Protect the openings with plugs, covers or the like to keep off foreign matters. Most of hydraulic system troubles are caused by the entry of foreign matters. • Before reassembling, clean up the parts and components and apply hydraulic oil on them. • The system consists of precision parts. Be careful not to scratch them and apply excessive force on them.

I-S-7

KX61-3, KX71-3 WSM

General

(4) Precautions in tightening hoses and pipes. • Flexible hoses have a slight natural bend of their own. Utilize the natural bend. Be also

?•

careful not to twist them. • Be careful not to confuse the routes of the hoses. • Do not hold the hoses in tight contact with their adjacent parts and surfaces.

• Tightening steps 1. First tighten the nut to its specified torque. 2. Then loosen the nut by about 45 0 to fit the seat of the joint to the connection.

(5) The quantities of oil, fuel, water and others, except for the oil to be filled in the track rollers and idlers, are listed just as reference. Fill up the fluid up to the specified center level of a level gauge if it is provided.

(6) Security support the machine with a jack and a supporting jig when it is jacked up for servicing. (7) Be sure to use a crane in disassembling and reassembling heavy parts and components (frame, front attachment, crawler, etc.).

1-8-8

KX61-3, KX71-3 WSM

General

b. O-ring, Oil seal, Circlip and Roll Pin

O-ring

groov~

Spline

O-ring groove O-ring

Sliding surface

O-ring

(1) General precautions Make sure the O-ring and the oil seal are free of anything unusual (uneven surface, scratches, chipping, etc.). • Check the O-ring groove for burrs. Correct, if any, using an oil stone or the like. • When putting a part past a sharp edge into position, protect such edge with a cover or get the part chamfered. (2) O-ring • Clean up the O-ring groove and deburr its edge as required. Before installing the ring, be sure to apply lubricant (grease) over it. (Do not do this to the floating seaL) • Fit the O-ring into its groove without twist. With your fingertip, push the ring gently and evenly into the final position. Otherwise the ring would easily get twisted in contact with the inner edge of the groove. (3) Floating seal • Be sure to wipe oil off the O-ring and the 0 ring contact surface. (Note, however, that oil must be applied thinly over those of the wheel motor.) • In fitting the O-ring into the floating seal, be careful not to twist the O-ring. Before installing the floating seal together with the O-ring, apply sealing oil thinly over the sliding surface. Be careful to keep the sliding surface and O-ring in alignment with the housing. • Finally tum the floating seal 2 or 3 times by hand in order to form an oil film over the sliding surface as well as to get the sealing surface well it.

I-S-9

General

KX61-3. KX71-3 WSM

(4) Oil seal • Do not confuse the orientation of the oil seal lips. Direct the main lip toward the oil chamber; in other word, toward what is to be sealed.

Packing

Dustpans lip

Metal ring

Atmosphere (outside)

Spring

Grease

Main lip

Oil chamber (inside)

• If in dry state. the oil seal may wear out when running in the machine. To prevent this. be sure to apply lubricant (grease) over the lip sliding surface. If provided also with a dustproof lip. fill the space between this lip and the main lip with grease. • As a rule, use a press to press-fit the oil seal. If not available, apply a suitable tool and tap it evenly without allowing any tilt. Press-fit the oil seal deep down to the bottom of the oil seal fitting boss. (5) Mounting the circlip • Place the circlip with its sharp edge facing outward (in the locking direction). • Fit the circlip securely in the groove. For the hole circlip in particular, install and turn it slightly to make sure it fits well.

Edge: Outside

Revolving

Spring pin A

(6) Tapping the roll pin (spring pin) • Place the roll pin (spring pin) with its opening perpendicular to the load. • Place the roll pin (spring pin) with its opening in the turning direction. • Evenly tap the roll pin (spring pin) into position.

B A=8

Revolving

1-8-10

General

KX61-3, KX71-3 WSM

c. Piping (1) General precautions • Tightening the pipe socket to the specified torque. If too tight, the socket itself or a hydraulic component may get damaged. It too loose, an oil leak may result. • In connecting a new hose or pipe, tighten its nut first to the specified torque and then turn it back (about 45°). Then tighten it again to the specified torque. (Do not this to the sealing tape-applied hose or pipe.) • When disconnecting a vertical hose or pipe, separate its bottom connection first. • In disconnecting and reconnecting the hose and pipe, be sure to use two wrenches. With one wrench, restrain the mating part to allow no twist • Check the mating connector's sleeve and the hose's taper for dust deposits and scratches. • When the pipe socket has been tightened up, wipe the joint clean. Apply the maximum operating pressure 2 or 3 times to make sure there is no oil leak.

(2) Hydraulic hose Check the hydraulic hose for too tight a connect or twist. *Excessively tight contact Let's suppose that a hose is in contact with another hose or other part. If the hose is pulled away by a force of 2 kg but still in contact, it means the contact is too tight.

(3) Precautions in tightening the bolts and nuts • Use bolts of specified length. • Do not over tighten the bolts: Its threads may get deformed or the fixed part may get damaged. Do not undertighten the bolt either: It may get loose. • In other words, tighten the bolt to the specified torque. • Tighten the bolts and nuts diagonally for even tightness.

Diagonally

Top and bottom alternately

Diagonally staring from center

1.4

2.3

Nut Sleeve

R (Tapered thread) G (Straight thread)

Steel pipe

Tapered thread

Union nut

I-S-11

KX61-3, KX71-3 WSM

General

(4) Hose screw

Metric Size Hose

Tightening torque N'm kgf-m

Thread size (piping screw)

Union nut section

Thread size (piping screw)

Wrench size

. Taper thread section

M12)( 1.5 7.8 -11.8 N'm 0.8 - 1.2 kgf'm

1/8"

i i 1

24.5 - 29.4 2.5 - 3.0

1/4"

14.71 - 19.61 N'm 1.5 - 20 kgf'm

17mm

3/8" i

20 - 30 2.0 - 3.1 ..

49.0 - 53.9 5.0 - 5.5

49.0 -68.6 5.0 - 7.0

58.8 - 63.7 6.0 - 6.5

83.4 - 88.3 8.5 - 9.0

22mm

20-30 2.0 - 3.1

M16)( 1.5

30- 50 3.1 - 5.1

i i

30- 50 3.1 - 5.1

M18)( 1.5

1/2"

27mm

3/4"

137.3 - 147.1 14.0 - 15.0

I i

127.5 -147.1 13.0 -15.0

36mm

147.1 -166.7 15.0 -17.0

41 mm

I i

117.7 - 127.5 12.0 - 13.0

M14)( 1.5

19mm

Torque N'm kgf·m

36.3 - 44.1 3.7- 4.5

...

M22)( 1.5

40 -60 4.1 - 6.1

(5) Joint bodies I Thread size (piping screw) i

Tightening torque N'm kgf'm

Spanner size (reference)

Remarks Steel pipe (00) 1

R (tapered thread)

G (straight thread) 1

! 1

1/8"

19.6 - 29.4 N'm 2.0 - 3.0 kgf'm

1/4"

36.3 - 44.1 3.7 -4.5

17mm

W/O-ring Joint Torque

58.8 -78.5 6-8

8mm

12 mm

19mm When in steel pipe is in use.

W/O-ring

3/8"

39.2 - 49.0 4.0 - 5.0

Joint Torque

1/2"

49.0 - 68.6 5.0 - 7.0

Joint Torque

78.5 - 98.1

8-10

23mm

15mm

26mm

16mm

W/O-ring 117.7 - 137.3 12 - 14

1-8-12

KX61-3, KX71-3 WSM

General

(6) Tightening torque table for hose clamp (Screw type)

Tightening torque N'm kgf-m

No.

Dia. (mm)

Code No.

1 2 3 4 5 6

012 -16 019- 25 031 - 40 036 46 015 25 026 38

09318-89016 09318-89024 09318-89039 09318-89045 RC101-64580 68311-72820

013 20

RB101-63630

3.4 - 4.4 35-45

8 9 10 11

040 55 077 95 050 60 032 -44

RC411-63180 69284-63170 RC401-63190 RD411-63820

4.9- 5.9 50 -60

2.5 - 3.4 25 35 4.9 - 5.9 50 -60

(7) Nuts for piping Steel pipe size (0.0.)( 1.0.)( Thickness)

Tightening torque N'm kgf·m

Spanner size (reference)

8)( 6)( 1 mm

29.4 - 39.2 3.0 4.0

17mm

10)( 7)( 1.5 mm

39.2 -44.1 4.0 -4.5

19mm

12)( 9)( 1.5 mm

53.9 -63.7 5.5 -6.5

21 mm

I Remarks

When sleeve nut is in use. 16)( 12)( 2 mm

88.3 - 98.1 9.0 -10.0

29mm

18)( 14)( 2 mm

127.5 -137.3 13.0 - 14.0

32mm

27.2 )( 21.6 )( 2.8 mm

235.4 - 254.97 24.0 -16.0

41 mm

1-5-13

General

KX61-3. KX71-3 WSM

(8) Tightening torque of bolts and nuts Refer to the tightness torque table below. I

Bolts. Nuts

9T0

4T0

7T0

SS41

S40C.S45C

SCr4

7.8 - 9.3 N'm 0.80 - 0.95 kgf'm

9.8 -11.3 N'm 1.00 - 1.15 kgf·m

12.3 - 14.2 N'm 1.25 - 1.45 kgf-m

17.7 - 20.6 N'm 1.80 - 2.10 kgf-m

23.5 - 27.5 N'm 2.40 - 2.80 kgf-m

29.4 - 34.3 N'm 3.00 - 3.50 kgf'm

M10

39.2 - 45.1 N'm 4.00 - 4.60 kgf·m

48.0 - 55.9 N'm 4.90 - 5.70 kgf'm

60.8 - 70.6 N'm 6.20 - 7.20 kgf-m

M12

62.8 - 72.6 N'm 6.40 - 7.40 kgf·m

77.5 - 90.2 N'm 7.90 - 9.20 kgf·m

103.0 - 117.7 N'm 10.50 - 12.00 kgf·m

M14

107.9 - 125.5 N'm 11.00 -12.80 kgf·m

123.6 -147.1 N'm 12.60 - 15.0 kgf·m

166.7 -196.1 N'm 17.00 - 20.00 kgf·m

M16

166.7 - 191.2 N'm 17.00 - 19.50 kgf-m

196.1 - 225.6 N'm 20.00 - 23.00 kgf·m

259.9 - 304.0 N'm 26.50 - 31.00 kgf'm

M18

245.2 - 284.4 N'm 25.00 - 29.0 kgf'm

274.6 - 318.7 N'm 28.00 - 32.50 kgf-m

343.2- 402.1 N'm 35.00 - 41.00 kgf·m

M20

333.4- 392.2 N'm 34.00 - 40.00 kgf·m

367.7 - 431.5 N'm 37.50 44.0 kgf·m

519.8 - 568.8 N'm 53.00 - 58.00 kgf-m

Nominal Dia.

(9) Types and materials of bolts and nuts [ex. bolts] i

Types

Material

Tensile strength

I 4T

8S41

840C S45C

8Cr4

Over 392 MPa 4000 kgffcm 2

Over 686 MPa 7000 kgffcm 2

Over 882 MPa 9000 kgffcm 2

Bolt head marking

Hardness HRB 62-98

HRC 20 - 28

HRC 28- 34

I-S-14

No mark or marked 4

Marked 7 0

Marked 9

KX61-3, KX71-3 WSM

General

(10)Washer-equipped elbow Tightening torque Size G1/4 G3/8 G112 G1/8

N'm

kgf·m

25- 30 49- 54 59-64 15 - 16.5

2.5 - 3.0 5.0 - 5.5 6.0 -6.5 1.5-1.7

Tightening procedure 1. Connecting with the valve • Screw in the elbow by hand until the washer comes into contact. Note: Clean up the mating seal beforehand.

Positioning • Turn the elbow back to its set position. Note: Do not make any more than one turn back.

I-S-15

Fixing • Tighten up the lock nut with a wrench. • Lock nut tightening torque

KX61-3, KX71-3 WSM

General

F. Maintenance intervals a. Maintenance intervals chart:EU - version General Maintenance

Elapsed Operating Hour' 50

100

150

200

250

350

300

400 450: 500

Check engine oil level

550

600 650 700

750

aDO 850

900

950 1000 Interval daily

Check hydraulic oUlevel

daily

Chcek fuel level

daily

Check coolant level

daily

i !

Grease front attachments

daily

Check V-belt

daily

r/)

~ Check water in fuel filter

daily

'2: Q)

Tracks and chassis: visual inspection and .9 clean, I!! check tension

(J)

Grease swivel gear Check, clean air filter

1.)

Check nuts and bolts Grease swivel gear bearing

weekly :(50 hrs) 50 hrs

! 0

50 hrs

100 hrs

200 hrs

500 hrs

Check battery electrolyte

level

0 i

Drain water in fuel tank

The services identified with. must be carried out at the speCified service hours after initial operation.

1.) Under dusty conditions the air filter must be cleaned more frequently or renewed.

2.) When uSing a hydraulic hammer over 20% every 800h. When using a hydraulic hammer over 60%every 300h.

When using a hydraulic hammer over 40%every 400h. When using a hydraulic hammer over 80%every 200h.

3.) When using a hydraulic hammer over 50%every 200h. When using a hydraulic hammer over 50%every 100h.

4.) Earlier if necessary.

5.) At least annually.

Service

Change engine oil and oil filter

5 'C

250

Elapsed Operating Hours' 350 400 450 500: 550 600 650

300

70Cl 750

250 h

ICheck/adjust V-belt tension

0 1 0

o o

4.)

1000!1~

250h

Change fuel filter

900 950

850

I aoo

,Inspect coolant hoses and iclamps

..9i Grease pilot valve linkage

•

100 150 200

250h I

500 h

~--~-------------+---+---+---+--~--~--4---4---+---+---+---t---t--4--~---+---+---+---+---+--~----~ Change hydraulic return line element 3.)

•

CD : filter

500 h

~ rC-h-an-g-e-d-r-iv-e-u-nn--oi-I---5~.)-+-.--+---+---~-4~-4---+---+---+---+-0--~--!r-~---+--~---+---+--~---+---+--~--~ 0

500 h

1000 h

'iii Change hydraulic oil and

§ .suction filter.

~ ,Renewing the Pilot Circuit 'C

2.)

Filter

~ ~'-----------------+---+--~--~--+_--~_4--_+--~--~--+_--~_4--_+--~--~--+_--t_~r__+--_+--~

~ IChange air filter elements 1.)

Change idler and track roller

g> oil

1000 h

: i

2000 h

'0 ~--------------~--+-~---+--+-~r--L--~--L--L--~--L-~---.---L--T--~~--t--+--~--~--~

(J)

Check altemator and starter :motor

Please contact your KUBOTA dealer.

Inspect electric cables and connections

Please contact your KUBOTA dealer.

Change coolant Change hydraulic hoses

Please contact your KUBOTA dealer.

I-8-16

, 2000 h annualli every 2 years every 6 years

KX61-3, KX71-3 WSM

General

b. Maintenance interval chart PP - version

i No. I

Check points

Hour meter indicator

Intervals 50 check

Coolant

100

150

200

250

300

Consequently 350

400

450

Daily check

change 2 3

Fuel Engine oil

Hydraulic oil

every 2 years

check

Daily check

check

Daily check

change

check

Daily check

every 250 hrs

change

every 1000 hrs

Daily check

Radiator and oil cooler

check

Daily check

Engine and electrical wiring

check

Daily check

Fuel tank, Fuel filter

drain

Battery condition

check

Greasing swivel bearing teeth

Fan belt tension

Radiator hoses and clamps

Lubrication pOints

0 0 0

adjust check

every year

0 0 0

0 0 0 0 0

0 0 0

0 0 0 0 0

0 0 0

every 50 hrs every 50 hrs

every 50 hrs every 200 hrs every 200 hrs every 2 years

clean

every 200 hrs

replace

every 1000 hrs

replace

every 1000 hrs

Air filter element

Greasing swivel ball bearings

Fuel filter element

replace

Engine oil filter

replace

Drive unit oil

change

Inner element

replace Outer element

Ref. page

0 0

0 @

every 200 hrs

every 400 hrs every 250 hrs

0 @

every 500 hrs

Hydraulic return filter element

replace

Hydraulic suction filter element

replace

every 1000 hrs

Fuel injection nozzle injection pressure

check

every 1500 hrs

Front idler and track roller oil

change

every 2000 hrs

Alternator and starter motor

check

every 2000 hrs

Injection pump

check

every 3000 hrs

Radiator system

rinse

every 2 years

Fuel line and intake air line

check

every 500 hrs

*500 thru 1000 continued to the following table.

I-S-17

every 200 hrs every 2 years

replace

@ *3

KX61-3, KX71-3 WSM

No,

Check points

General

Hour meter indicator

Intervals 500

check

Coolant

550

600

650

700

Consequently

750

800

1000

Daily check

change 2

Fuel Engine oil

every 2 years

check

Daily check

check

Daily check

change 4

check

Hydraulic oil

Lubrication points

Radiator and oil cooler

check

Daily check

Engine and electrical wiring

check

Daily check

Fuel tank, Fuel filler

drain

Battery condition

check

Greasing swivel bearing teeth

~ ,,, "'. to"';"

every 1000 hrs

every 50 hrs

0 0 0

check

every year

0 0 0 0 0

0 0 0

~ 0

replace Outer element Air filter element

Greasing swivel ball bearings

Fuel filter element

replace

Engine oil filter

replace

Drive unit oil

change

~fiI"".mern , ' n filter element i

replace Inner element

every 50 hrs every 50 hrs

replace

0 0

0 0 0

hÂąÂą

replace replace

every 200 hrs every 200 hrs

0 0 0 0

every 200 hrs

every 1000 hrs

....,250hBt! every 400 hrs

every 500 hrs

check

Front idler and track roller oil

change

Alternator and starter motor

check

every 2000 hrs

Injection pump

check

every 3000 hrs

Radiator system Fuel line and intake air line

every 1500 hrs

every 1000 hrs

Fuel injection nozzle injection pressure

every 200 hrs

every 2000 hrs

rinse check

=H=

every 2 years

clean

Daily check

adjust

hoses and clamps

every 250 hrs

Daily check

change

Ref, page

every 2 years

replace

every 200 hrs every 2 years

@ '3

IMPORTANT: @ First operation *1 When using a hydraulic breaker, change hydraulic oil and return filter according to the table on "Hydraulic Oil Change (Including EXChange of the Suction Filter in the Hydraulic Tank) under "EVERY 1000 SERVICE HOURS" in the chapter "REGULAR CHECKS AND MAINTENANCE WORK", *2 Clean and replace the air filter more frequently if used under dusty conditions. By heavy soiling, replace the filter. *3 Replace only if necessary. *4 Consult your local KUBOTA Dealer for this service. The items listed above (@ marked) are registered as emission related critical parts by KUBOTA in the U.S.EPA non-road emission regulation. As the engine owner, you are responsible for the performance of the required maintenance on the engine according to the above instruction. Please see the Warranty Statement in detail.

I-S-18

KX61-3, KX71-3 WSM

General

c. Hydraulic Oil Check for machines with Hydraulic Breakers

Return

The Hydraulic oil change after 1000 operating hours in the operator's manual is based on the type of work done. Following inspection measure are valid when hydraulic breakers are used: (1) Changing and filling up of hydraulic oil 1. The hydraulic oil must be changed more often when breakers are used because the machine is subject to harder conditions than at normal excavating work. 2. Use only the recommended oils mentioned in the operator's manual when changing or fill oil. 3. When filling up oil, never mix oils of different makes. (2) Changing the return filter and oil 1. The filter must be changed more often because of contamination resulting from the frequent assembly and disassembly of the hoses. 2. Use the correct replacement filter. 3. Oil change according to operating hours. Hydraulic oil Normal excavator work

every 1000 Hrs.

20%

every BOO Hrs.

40%

every 400 Hrs.

60%

every 300 Hrs.

More than BO%

every 200 Hrs.

Return Filter i

500 Hrs.

Suction Filter I

300 Hrs. Breaker work portion

1-5-19

1000 Hrs.

100 Hrs.

KX61

General

KX71-3 WSM

d. Periodic replacement of important parts To ensure safety in traveling and operating the machine, the user is strongly requested to carry out

periodic inspection and servicing. For added safety, the following important parts, related to safety and fire

hazards in particular, must be replaced at their specified intervals.

With the passage of time, these parts easily get degraded in material or worn out. They are difficult to

check for anything unusual even at periodic inspection and servicing. Even if nothing unusual is found, it

is essential to replace them with new ones after their specified service life, in order to maintain complete

function.

If by any chance any of these parts gets in trouble even before its service life, it must be repaired or

replaced as usual.

In replacing the hoses, check also the hose clamps for deformation, cracks and other troubles. Replace

the hose clamps too with new ones, as required.

Check all the hydraulic hoses, including those to be replaced at regular intervals, for the following points.

Tighten up or replace them, as required.

When replacing the hydraulic hoses, change their O-rings and sealing for new ones at the same time.

â&#x20AC;˘ Check the fuel and hydraulic hoses too at the following periodic inspections. Inspection intervals

Inspection item

Daily inspection

Fuel and hydraulic hose connections as well as crimped parts for oil leak

Monthly inspection

Fuel and hydraulic hose connections as well as crimped parts for oil leak Fuel and hydraulic hoses for damages (cracks, wear-out and peel-off)

Specified self-imposed (yearly) inspection

Fuel and hydraulic hose connections as well as crimped parts for oil leak Fuel and hydraulic hoses for interference, deformation, degrading, twist and other damages (cracks, wear-out, peel-off)

â&#x20AC;˘ List of important parts No.

Periodic-replaced parts

Q'ty

Fuel hose (Fuel tank - Fuel filter)

Fuel hose (Fuel filter - Fuel pump)

Fuel hose (Fuel pump - Fuel nozzle)

1 1

Fuel hose (Fuel nozzle - Fuel tank)

Hydraulic hose (Main pump suction)

1 1

6 7 8 9 10 11

Hydraulic hose (Main pump delivery)

Hydraulic hose (Boom cylinder)

*2 *2+2

Hydraulic hose (Arm cylinder) Hydraulic hose (Bucket cylinder)

*,draulic hose (Swing cylinder)

draulic hose (Dozer cylinder)

Hydraulic hose (Service port)

*2+2

Hydraulic hose (Swivel motor)

Replacement intervals

2 years or 4000 operating hours, whichever comes earlier

Note: The "'-marked hydraulic hoses are Kubota's genuine ultra wear-resistant hoses. Be sure to use these parts.

I-S-20

KX61-3, KX71-3 WSM

Machine body

A. Specifications a. Machine weight Track

Arm

I •Rubber

STD.

Long Canopy STD. Steel Long

Unit

KX61-3 EU

KX71-3 EU

kgf

2530

2720

(Ibs)

(5578)

(5997)

kgf

2540

(Ibs)

(5600)

kgf

2625

(Ibs)

(5787)

KX71-3 PP

2730 ....

2780

(6019) ...

(6129)

2815 (6206)

kgf

2635

2825

(5809)

(6228)

(lbs)

(6338)

...

STD. Rubber Long Cabin i

STD.

Steel Long i

STD. , Rubber Long Cabin (Light weight) STD. Steel Long

kgf

2640

2830

(Ibs)

(5820)

(6239)

kgf

2650

2840

2890

(Ibs)

(5842)

(6261)

(6371)

kgf

2735

2925

(Ibs)

(6030)

(6449)

kgf

2745

2935

2985

(Ibs)

(6052)

(6471)

(6581 )

kgf

2580

(Ibs)

(5688)

kgf

2590

(Ibs)

(5710)

kgf

2675

(Ibs)

(5897)

kgf

2685

(Ibs)

(5919)

· ·

(Note: Cabin - canopy = 10Skgf, Steel crawler - rubber crawler = 9Skgf, Long arm - STD. arm = 10kgf)

KX61-3, KX71-3 WSM

Machine body (Service section)

b. Machine specifications [1] Major specifications Unit

KX61-3

KX71-3 EU

KX71-3 PP

Engine Type

Vertical, water-cooled 4 cycle, 4 cylinders diesel

Model

gross engine output (SAE J1349) Displacement

V1505-E2BH-9-EU

V1505-E2BH-10-EU

V1505- E2BH-1 0

18.3

20.6

24.9

28.0

in 3

1498.0

91.4

1498.0 1_

91.4

Dimensions

Overall length

4270

168.1

Overall width

Imm

1400

55.1

1500

59.1

1400

55.1

1500

59.1

Canopy

2430

95.7

2430

95.7

Cabin

mm- in

Overall crawler width Overall height

4520

4550

178.0

179.1

---l

2410

94.9

2410

94.9

305

12.0

305

12.0

•STD. Arm I

2490

98.0

2680

105.5

Long Arm

2740

107.9

113.0

Max. digging height

Max. digging radius

Max. dumping height

2870

STD. Arm

4360

171.7

4470

176.0

Long Arm

4540

178.7

4600

181.1

STD. Arm

4480

176.4

4700

185.0

Long Arm

4720

185.8

4890

192.5

3060

120.5

3170

124.8

3240

127.6

3300

129.9

STD. Arm Long Arm

Swing angle (left/right)

deg. mp h

Low speed kmlh Travel speed

78/57 1.7

4.4

2.7

2.8

Min. ground clearance Max. digging depth

1.7

2.6

1.6

2.9

4.5

2.8

----

mp h

High speed kmlh i Swivel speed

rpm Low speed

Max. traction force High speed

Ibf

kgf

20.2

9.5

~ kgf

4.6

4.5

22.1

5.0

22.3 2.3

2.1 11.7

14.6

2.6

1.2

5.0

2.3 11.1

3.3

2.5

1.1

1.5

Performance

Tumbler distance Tread Crawler width x No. of shoe x pitch (Rubber crawler)

imm in mm

1560

61.4

1100

43.3

300 x 53 x 80

11.8 x 2.1 x 3.2

47.2

1200

! !

Bucket Capacity CECE heaped Width

m3 yd 3 Im m

0.06

43.3

1100

Blade

I Width x height I Lift above GL 1 below GL

0.07

0.1

1200

0.1

47.2

Imm in i 1400 x 300 55.1 x 11.8 I 1500x 300 I 59.1 x 11.8

350 x 310 13.8 x 12.2

II-S-4

0.1

0.08

370 x 350 114.6 x 13.8 340 x 300

13.4 x 12.2

KX61-3, KX71-3 WSM

Machine body

[2] Main dimensions KX61-3 EU KX71-3 EU KX71·3 PP

Unit

(A)

(8)

(C)

mm mm mm

600

590

600

590

600

inch

(23.62)

(D)

(E)

(F)

(G)

(H)

(I)

(J)

(K)

(L)

(M)

1400

1160

1360

1500

1210

1360

1400

4540

3060

2740

1830

2410

350

310

1500

4610

3220

2930

1960

2410

350

310

590

1500

1210

1360

1500

4700

3180 : 2970

I 1940

2410

340

310

(23.23)

(59.00)

(47.64)

(53.54)

(59.00) i (1B5.04) (125.20) (116.93)

(76.36)

(94.88)

(13.39)

(N) i (0) I (P)

(Q)

4310

4600

4720

3380

4580

I 4830

4940

3350

4550 : 4880

4990

(12.20) : (131.89) (179.13) (192.13) j (196.46)

1BAAAARAP050A

11-8-5

KX61-3, KX71-3 WSM

Machine body (Service section)

c. Lever stroke and operating force

KX61-3

KX71-3 EU

KX71-3 PP

Remarks

Unit

IStroke

Boom

Force

Stroke Arm

Force

Stroke Bucket

Force

ISwivel

IStroke I

73.0

74.0

in.

2.9

10.0

14.0

kgf

1.0

1.4

Ibf

2.2

3.1

73.0

74.0

in.

2.9

10.0

14.0

Up/Down

1.4

kgf

1.0

1.4

Ibf

2.2

3.1

72.0

in.

2.8

10.0

14.0

Crowd / Dump

2.8

Crowd / Dump

14.0

kgf

1.0

1.4

Ibf

2.2

3.1

72.0

in.

2.8

10.0

14.0

kgf

1.0

1.4

Ibf

2.2

3.1

74.0

Right / Left

•Force

,I Stroke Travel (Left I Right) Force i !

Stroke Blade

Force i

Acceleration

Force

Swing pedal

Force

Service port pedal

Safety lock lever(Left)

Force

in.

2.9

16.0

kgf

1.6

Ibf

3.6

51.0

58.0

in.

2.0

2.3

25.0

24.0

kgf

2.5

2.4

5.4

Ibf

5.6

48.0

43.0

kgf

4.9

4.4

Ibf

10.8

9.7

33.0

45.0

kgf

3.4

4.6

Ibf

7.4

10.1

43.0

45.0

kgf

4.4

4.6

Ibf

9.7

10.1

12.0

34.0

kgf

1.2

3.5

Ibf

2.7

7.6

Il-S-6

FIR

Up/ Down

Up/Down

Front I Back

Upl Down

KX61-3, KX71-3 WSM

Machine body

d. Dimensions of parts [1] Front pins -

No. 1

Pin diameter x length

Pin diameter x length i

14 . Pin diameter x length i

15 I Pin diameter x length

Service limit of pin dia. : -1.0 mm (-0.04 in.) KX61-3

KX71-3 EU

KX71-3 PP

Location

f足

$40.0 x 191.0 $1.57 x 7.52

Swing bracket - Boom cylinder

Swing bracket - Boom

Boom - Boom cylinder

f足

Swivel frame - Swing cylinder

$35.0 x 93.0 $1.38 x 3.66

Swing bracket - Swing cylinder

f足

Swing bracket - Swivel frame(Lower)

Unit

in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in.

$40.0 x 186.0 $1.57 x 7.32 $40.0 x 269.0 $1.57 x 10.59 $40.0 x 177.0 $1.57 x 6.97 $35.0 x 114.5 $1.38 x 4.51 $35.0 x 88.5 $1.38 x 3.48 $60.0 x 127.0 $2.36 x 5.00 $60.0 x 154.0 $2.36 x 6.06 $40.0 x 177.0 $1.57 x 6.97 $40.0 x 160.0 $1.57 x 6.30 $40.0 x 214.0 $1.57 x 8.43 $40.0 x 160.0 $1.57 x 6.30 $40.0 x 171.0 $1.57 x 6.73 .Ox171.0 $1.38 x 6.73 $30.0 x 189.0 $1.18 x 7.44 $30.0 189.0 $1.18x7.44

$40.0 x 274.0 $1.57 x 10.79 $40.0 x 182.0 $1.57 x 7.17 f-

f足 i

$40.0 x 182.0 $1.57 x 7.17 $40.0 x 169.0 $1.57 x 6.65 $40.0 x 221.0 $1.57 x 8.70 $40.0 x 169.0 $1.57 x 6.65 $40.0 x 195.0 $1.57 x 7.68 $35.0 x 195.0 $1.38 x 7.68 $35.0 x 233.0 $1.38 x 9.17 $35.0 x 233.0 $1.38 x 9.17

Boom - Arm cylinder

Arm - Arm cylinder

Boom - Arm

Arm - Bucket cylinder

$40.0 x 193.0 $1.57 x 7.60 $40.0 x 193.0 $1.57 x 7.60 $40.0 x 233.0 $1.57 x 9.17 $40.0 x 233.0 <1>1.57 x 9.17

Bucket links 1, 2, 3 - Bucket cylinder

Note: New Pin'S tolerance: $30=g~, $35:g~. $40=g~ (1.1S:gGGL 1.3S=gGG~, 1.57:g~) Material: S43C-D, S45C-D

Effective hard depth 2 .... 4mm (O.OS .... 0.16 in)

Surface hardness HRC 52 .... 59

o.o[]_____ j)-_

-~_t

0.0.

a: length U-S-7

Swing bracket Swivel frame(Upper)

Arm - Bucket links 2, 3 Bucket - Bucket link 1 Arm - Bucket

Machine body (Service section)

KX61-3, KX71-3 WSM

[2] Bucket link No.

SelVice limit of front bushing: +1.0 mm (+0.04 in.) KX61-3

i Unit

Bucket interchangeability mm

a(Bush) inner dia.

b(Arm) boss inner dia.

c(Bucket) boss inner dia.

in. mm , . , In. mm

I in. mm

, d(Link)

in.

in. mm

f i

rI(p'. d'a.)

KX71-3 PP

$35:816

$40:81~

$1.18:8~ $38+g 025

$1.57!g8~

$1.5o+g oo1

$' i:8~ $45+g025 $1.77+g 001

$3o:8~

$35:g6g

$4o:gJg

$1.18:g~

$1.38:g~

$1.57:ggg~

$38+8 025 $1.50+8 001

$45+8 025 $1.77+g oo1

$50+8 025

137 i 05

$135 105

5.39 i o,020

$5.31 iO,020

110+6

$134:g~

$50 +g 025

$1.9rg oo1

$1.9rg 001 iO,5 0.00Âˇ0,020

$5.28:g8i~

039

o.Oo:gggg

160

184

in.

6.30

7.24

184

208

in.

7.24

8.19

0.00

200

244

$3o:g16

4.33+g

in.

KX71-3 EU

'mm

h i

in. mm , in.

7.87

9.61 $35:g~

$4o:ggf

$1.18:g,~

$1.38:ggg~

$1.57:ggg~

Bucket link

Arm h

1I-S-8

I i

0.00

$3o:gg~

(Wear limit: Pin, -1.0 mm, bush, +1.0 mm diameter)

9.61

Machine body

KX61-3, KX71-3 WSM

[3] Bucket dimensions No. I

2 3 4 5 6 I

7 8 9 10 11 12 13 14 15 16 17 18

Unit

KX61-3

KX71-3 EU

mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm

448.0 17.64 472.0 18.58 q,76.3 x t9.5 q,3.oo x to.37 184.0 7.24 110.0 4.33 12.0 0.47 25.0 0.98 56.0 2.20 q,54.0 q,2.13 ij)65.0 <1>2.56 ij)3o.0;o05 <l>1.18!g~

480.0 18.90 504.0 19.84 $76.1x t1o.o q,3.oo x to.39 184.0 7.24 134.0 5.28 12.0 0.47 25.0 0.98 67.0 2.64 q,64.o $2.52 ij)8o.o <1>3.15 <1>35.0;005 <l>1.38:g~

in.

I I

q,3o.o~o05

<l>35.o~o05

<l>1.18:g~~ 589.0 23.19 503.5 19.82 78.5 3.09 148.0 5.83 137.0 5.39 0.0 0.00

ij)1.38:g~ 594.0 23.39 566.0 22.28 78.5 3.09 187.0 7.36 135.0 5.31 14.5 0.57

Remarks

(Service limit) Front pin dia. : -1.0 mm (-0.04 in.) Front bushing dia. : +1.0 mm (+0.04 in.)

NOTE: KUBOTA JAPAN BUCKET

As for KX71-3 PP - version, local content bucket will be installed.

II-S-9

KX61-3, KX71-3 WSM

Machine body (Service section)

[4] Bucket installation relevant dimensions I

No.

Unit

C I

E F G

I J

K L

P Q

R S

mm (in.) mm (in.) mm (in.) mm (in.) mm (in.) mm (in.) mm (in.) mm (in.) mm (in.) mm (in.) mm (in.) mm (in.) mm (in.) mm (in.) mm (in.) mm (in.) mm (in.) mm (in.) mm (in.)

KX61-3 STD. Arm Long Arm 60.0 (2.36) 4>20.0 (4)0.79) 50.5 (1.99) 60.0 (2.36) 32.3 (1.27) 5.0 (0.20) 905.0 1155.0 I (45.47) (35.63) 10.0 (0.39) 259.0 (10.20) 225.5 (8.88) 157.0 (6.18) 1076.5 (42.38) 240.0 (9.45) 240.0 (9.45) 145.0 (5.71) I 1050.0 1300.0 (41.34) (51.18) 2088.0 (82.20) 1134.0 (44.65) 1046.0 (41.18)

KX71-3 EU ! Remarks STD. Arm Long Arm 59.8 (2.35) I 4>20.0 i (4)0.79) 52.9 (2.08) 60.0 (2.36) 14.5 (0.57) 5.0 (0.20) I 1205.0 1005.0 I (39.57) (47.44) 7.5 (0.30) 273.0 (10.75) (Service limit) 292.0 Front pin dia. : -1.0 mm (-0.04 in.) (11.50) : Front bushing dia. : +1.0 mm (+0.04 in.) 182.0 (7.17) ! 990.5 1142.0 (44.96) i (39.00) 260.0 (10.24) 230.0 I I (9.06) I 145.0 i (5.71) 1150.0 1350.0 I I (45.28) (53.15) 2240.0 (88.19) 1110.0 ! i (43.70) 1166.0 (45.91)

-1

I I

NOTE: KUBOTA JAPAN BUCKET STANDARD ARM As for KX71-3 PP - version, local content bucket will be installed.

--------1

-t------ G -----t--Â JI-S-10

Machine body

KX61-3. KX71-3 WSM

e. Undercarriage specifications [1] Rubber crawler Unit

Crawler ass'y code No. Identification mark (Core metal rapping position) A : Lug height B : Link height C : Crawler width D : Crawler sag distance E : Crawler height

mm in. mm in. mm in. mm in. mm in.

Core metal pitch Rubber thickness

KX71-3 (EU I PP)

RB511-22311

25.0 0.98 19.0 0.75 300.0 11.81 10 -15 0.39 - 0.59 80.5 3.17 80 4240.0 166.93 53 2.09 26.5 1.04

Number of Core metal Circumference

KX61-3

mm in. mm in. j

I ~m In.

Remarks

I ~

Material: FCD450H

[2] Steel crawler Unit

KX61-3

mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in.

RC301-22102 300.0 11.81 406.4 1416.4 16.00/16.4 90.5/85.5 3.56/3.37 28.0/26.5 1.10/1.04 17.0/19.0 0.67/0.75 17.0/15.5 0.67/0.61 16.5/8.0 0.65/0.31 75 -80 2.95 - 3.15 40

Crawler ass'y code No. Crawler width 1) 4 links length (A)/(B) 2) Height 3) Bushing O. D. (A)/(B) 4) Bushing I. D. (A)/(B) 5) Master pin O. D. (A)/(B) 6) Grouser height 7) Crawler sag distance Number of links

KX71-3

Remarks

(A) New machine reference value (B)Allowable limit

Rubber crawler

~ â&#x20AC;˘

) 2)

-te-------Â

U-S-11

KX61-3, KX71-3 WSM

Machine body {Service section}

[3] Track roller, idler, sprocket •A : Roller surface diameter (A)/(8) 8 : Guide diameter C : Roller width i

D : Upper roller diameter

(A)/(8)

E : Sliding plate thickness

(A)/(8)

Unit

KX61-3

KX71-3 (EU 1 PP)

mm in.

80.0175 3.15/2.95

$124.0

in.

$4.88

175.0

in.

6.89

$76.3/72.3 $3.00/2.85

in.

Remarks

10.0/5.0

in.

0.39/0.20

t i

(A) New machine reference value (8)Allowable limit

1 - - - - - - -..- - - - - - - - - -

1) Idler O.D.

(A)/(8)

2) Guide width

(A)/(8)

3) Idler width 4) Sprocket wheel O.D.

(A)/(8)

5) Sprocket wheel width

(A)/(8)

KX71-3 (EU/PP)

Unit

KX61-3

$316.01$308.0

in.

$12.44/$12.13

30.0/26.0

in.

1.18/1,02

72.0

in,

2.83

$356.01$348.0

$361.01$353.0

in.

$14.02/ $13.7

$14.21/$13.90

30.0/26.0

I in.

1.18/1.02

Remarks

(A) New machine reference value (8)Allowable limit

II-S-12

KX61-3, KX71-3 WSM

Machine body

[4] Dozer I

Unit

Blade ass'y code No. (KTC, KCL, KTA)

Blade ass'y code No. (EU) mm

A : Pin diameter x length

B : Pin diameter x length C : Pin diameter x length D : Blade width E : Blade height i

F : Blade length G : Blade tip plate height x thickness H : Length between blade arms

KX61-3

KX71-3 EU

RC348-74411

RG248-74411

RG448-74411

<1>40.0 x 151

in.

<1>1.57 x 5.94

<1>45.0 x 110.0

in.

<1>1.77 x 4.33

<1>45.0 x 110.0

KX71-3 PP

<1>40.0 x 125 <:

Remarks I

<1>1.57 x 4.92 <1>45.0 x 112.0

<1>1.77 x 4.41 <1>45.0 x 112

in.

<jl1.77 x 4.33

1400

1500

in.

55.12

59.06

295.0

in.

11.61

965.0

1030.0

in.

37.99

40.55

65.0 x 12

in.

2.56 x 0.47

334

in.

13.15

11-5-13

<jl1.77 x 4.41

<: I

Machine body (Service section)

KX61-3, KX71-3 WSM

f. Parts weight

Unit Truck frame i

Swivel frame

Swing bracket I

Boom

STD. . Arm Long

For STD. arm

IBucke'

kgf

303.2

315.0

(lbs)

(668.4)

(694.5)

kgf

61.4

(Ibs)

(135.4)

kgf

97.9

115.6

116.6

(Ibs)

(215.8)

(254.9)

kgf

45.7

60.8

(100.8)

(134.0)

kgf

55.2

72.2

74.6

(Ibs)

(121.7)

(159.2)

(164.5)

kgf

47.4

56.4

(Ibs)

(104.5)

(124.3)

kgf

47.4

56.4

(104.5)

(124.3)

0.0

I i

(257.1)

KX71-3PP : Long arm only •

kgf

93.5

105.2

105.5

(Ibs)

(206.1)

(231.9)

(232.6)

kgf

10.1

(Ibs)

(22.3)

kgf

10.1

(Ibs)

(22.3)

kgf

69.5

225.0

.._

259.0 ..

(Ibs)

(153.2)

(496.0)

(571.0)

_kgf

125.0

(lbs)

(275.6)

kgf

168.5

(Ibs)

(371.5)

kgf

41.1

42.8

(Ibs)

(90.6)

(94.4)

kgf

110.0

(Ibs)

(242.5)

kgf

24.2

23.5

(Ibs)

(53.4)

(51.8)

kgf

3.2

(lbs)

(7.1)

kgf

38.6

(Ibs)

(85.1)

(85.1 )

kgf

18.0

(Ibs)

(39.7)

kgf

5.0

Arch frame

Engine

. Hydraulic tank

Fuel tank !

Swivel bearing

Battery !

KX71-4PP : Long arm only

.-. I

Steel crawler

Upper roller

300.7 (662.9)

i(lbs)

Weight (rear)

Truck roller

289.2 (637.6)

Remarks

Protector (left)

Rubber crawler

278.0 (612.9)

Blade

Protector (right)

KX71-3 PP

KX71-3 EU

kgf

IFor Long arm

(Ibs)

• (Ibs)

KX61-3 EU

Dry weight

With filter

(Ibs)

(11.0)

kgf

3.0

(lbs)

(6.6)

II-S-14

Machine body

KX61-3, KX71-3 WSM

RaPS/FOPS canopy

RaPS/FOPS cabin

KX61-3 EU

KX71-3 EU

KX71-3 PP

kgf

81.7

75.4

(Ibs)

(180.1)

(166.2)

kgf

179.6

. (Ibs)

(395.9)

(373.9)

kgf

17.0

(Ibs)

(37.5)

Hydraulic pump

Traveling motor

Swivel motor

Idler ass'y

20.0

42.0

35.0

(44.1)

(92.6)

(77.2)

kgf

23.0

(Ibs)

(50.7)

kgf

8.4

8.5

(Ibs)

(18.5)

(18.7)

kgf

20.1

(Ibs)

(44.3)

(44.3) 24.0

(Ibs)

(0.0)

(52.9)

kgf

25.0

22.1

(Ibs)

(55.1)

(48.7)

kgf

23.0

21.0

(Ibs)

(50.7)

(46.3)

kgf

19.0

16.0

(lbs)

(41.9)

(35.3)

17.0

(37.5)

kgf

21.0

20.0

(Ibs)

(46.3)

(44.1)

kgf

11.0

I (Ibs)

(24.3)

Boom cylinder

Arm cylinder

EU,US Bucket cylinder AU.CA

kgf

i(ibs). kgf

Swing cylinder

(Ibs) ,

Blade cylinder i

Remarks

169.6

kgf

Control valve

(Ibs)

! - - - ...

Sprocket

Rotary joint

Unit

Without adaptors

With protector

16.0 (35.3)

The weights listed above are based on calculations and slightly different from actual ones.

II-S-15

Machine body

KX61-3, KX71-3 WSM

g. Water and oil quantity

Unit Radiator

Canopy I Cab

Hydraulic oil

Full

Hydraulic oil

Tank

Upper roller

Front idler

Fuel tank

KX71-3 EU

KX71-3 PP

Remarks

4.3 1.1

1.1

4.5

gal

1.19

53.0

gal

14.00

38.0

gal

10.04

0.6

gal

0.16

80.0

gal

0.02

60.0

gal

0.02

75.0

gal

0.02

45.0

gal

0.01

,KUbOla LLC-N-50F 50o/

0.29

gal

Engine crank case

Track roller

L I gal • L

Reserve tank

\M1eel motor

KX61-3 EU

SAE 10W-30(CO) i

ISOVG46

SAE90(API GL-4)

SAE30(CO)

SAE30(CD)

II-S-16

.OJ

~ .....

-0" ::l.O

140

en :::J a. r-+足 CD Q) en. ~

~ ii\~ f"T \ , ,~~I

ff~ 130

050,

140

035

030

e-足 ~;.~

o~~ 000 'i "STY",足 ~"

h oa(OlIOI; OlIO

::J Q)

'lrr~~f

!::!':

I~~~

::J

"~ 030

100

8 ..... I

(J.)

(')

::::r

:::J

r-+足

060 050

~"'"'" ;::::."~

.....

020

( J)

010

-J

145

, 1

020 l..010

It!'

~40 t!'.

060

OliO

) 020

O??J '~20 040

060

~060 170

2~'r '120

140

ill (')

:::T

:f (J) c:r o

Machine body

KX61-3, KX71-3 WSM

(1) Swing bracket No.

PART NAME

010 020

Assy bracket. swing Bush

030 040 050 060 070

Bush Bush Bush Coliar Bush

080 082 084

Bush Nipple, Grease

No. 090 100 110 120 130 140 150

Plug

PART NAME

No.

PART NAME

180

Coliar, Thrust Pin. Joint Pin, Sprit washer, Plain

190 200 210

Bolt Pin Plate, Key Bolt

220 230 240

Pin Nipple, Grease Shim

250 260

Stud Nut

Pin Coliar, Thrust

155 160 170

Shim Pin Plate, Retainer

Shim

170 180

(2) Boom PART NAME

PART NAME

No.

PART NAME

No. 010

Boom

No. 085

020 030

Pin Shim

090 100

Bolt Nut, Lock

190

Bolt

035 040

Shim Bolt

050 060 070 080

Pin Pin Nipple, Grease Shim

110 120 130 140 150 160

Pin Nipple, Grease Shim

200 210 220 230 240 250

Nut, Lock Pin Nipple, Grease Shim Bolt Nut, Lock

PART NAME Cover, Cylinder

No. 030

Bolt

040

PART NAME Washer, Plain Cap, Cylinder cover

PART NAME Assy, Arm Bush Coliar Collar

No.

PART NAME

No.

PART NAME Pin Nipple, Grease Shim Shim Bolt Nut, Lock

Bolt Nut, lock Pin

Shim Shim

(3) Boom Cylinder Cover No. 010 020

(4) Arm No. 010 020 030 040 050 060 070

Nipple, Grease Seal, Dust Blank

080 090 100 105 110 120

Pin Nipple, Grease Shim Shim Bolt Nut, Lock

130 135 140 145 150 160

(5) Bracket Link PART NAME

No.

PART NAME Seal, Dust Link, Bucket Link, Bucket

Washer Assy link, Bucket Bush

090 100 110 120 130 140

Bush Collar

150 160

Bolt Washer

010 020 030

Pin Nipple, Grease Bolt

040 050 060 070 080

No.

Pin Nipple, Grease Shim

PART NAME

No. 170 180 190 200 210 220 230 240

Pin Nipple, Grease Shim Spacer Washer. Plain Bolt O-ring Cap

(6) Blade No. 010 020 030

PART NAME Blade Nipple, Grease Pin

No. 040

Bolt

No. 070

050

Nut, Lock

080

060

PART NAME

Il-S-18

PART NAME Bolt Nut, Lock

Machine body

KX61-3, KX71-3 WSM

b. Exchange of bucket (Kubota Japan Bucket)

CAUTION * When replacing the bucket, wear a hard helmet,

goggles and other protective gears.

* When working in buddy system, fully

understand signals from each other for added

safety. Take the following procedures to replace the bucket.

A IMPORTANT

â&#x20AC;˘ Fitting the bucket 1.PI~ce the O-rin~ on the boss of the bucket. 2.Ahgn the arm with the hole A, put the shims at both ~nds ~f the arm, and couple them with th~ pins. Align the link with the hole B, put the shims at both ends of the link, and couple them with t~e pins. 3.Apply and tighten up the pin fixing bolts. 4. Fit the O-ring in the groove.

* Be careful to keep the drawn-out pins free of

sand and mud.

* A dust seal is attached at each end of the bushing. In removing and fitting the pins, be careful not to damage the dust seals. â&#x20AC;˘ Removing the bucket 1.Place the bucket just on a flat, level ground. 2.Stop the engine and let out pressure from the hydraulic system. 3.Detach the O-ring from the groove and draw out the pins A and B. I Move the O-ring

2 Bucket boss

5.Grease Up the pins.

I Move the O-ring

2 Bucket boss

U-S-19

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