service repair manual

1. 00-1
(2)
PW130ES-6K
MACHINE MODEL
PW130ES-6K
PW130ES-6K
PW130ES-6K
SERIAL NUMBER
K32001 and up
K34001 and up
K35001 and up
• This shop manual may contain attachments and optional equipment that are not available in your area.
Please consult your local Komatsu distributor for those items you may require. Materials and specifications
are subject to change without notice.
UEBM001202
© 2003
All Rights Reserved
Printed in Belgium 12-03

2. 00-2
햲
CONTENTS
No. of page
10 STRUCTURE AND FUNCTION......................................................... 10-1
20 TESTING AND ADJUSTING ............................................................. 20-1
30 DISASSEMBLY AND ASSEMBLY .................................................... 30-1
40 MAINTENANCE STANDARD............................................................ 40-1

3. 10-1
STRUCTURE AND FUNCTION
10 STRUCTURE AND FUNCTION
ENGINE RELATED PARTS ...................... 10-2
RADIATOR & OIL COOLER...................... 10-3
PTO ........................................................... 10-4
POWER TRAIN ......................................... 10-5
SWING CIRCLE ........................................ 10-7
SWING MACHINERY ............................... 10-8
UNDERCARRIAGE................................... 10-9
TRANSMISSION ....................................... 10-11
CLUTCH CONTROL ................................. 10-13
AXLE ......................................................... 10-15
SUSPENSION LOCK CYLINDER............. 10-19
BRAKING TRAIN ...................................... 10-21
BRAKE & STEERING CIRCUIT................ 10-22
BRAKE/STEERING PUMP ....................... 10-25
BRAKE PEDAL/BRAKE VALVE ................ 10-26
PRIORITY VALVE ..................................... 10-27
ACCUMULATOR FOR BRAKE SYSTEM . 10-28
STEERING TRAIN .................................... 10-29
STEERING COLUMN ............................... 10-31
ORBITROL VALVE .................................... 10-32
HYDRAULIC CIRCUIT DIAGRAM ............ 10-33
FUEL/HYDRAULIC TANK ......................... 10-35
HYDRAULIC PUMP .................................. 10-36
LS VALVE/PC VALVE................................ 10-42
PPC PUMPLESS SYSTEM ...................... 10-56
CONTROL VALVE..................................... 10-58
CLSS ......................................................... 10-68
SWING MOTOR........................................ 10-98
CENTER SWIVEL JOINT ......................... 10-103
TRAVEL MOTORS .................................... 10-104
WORK EQUIPMENT -
SWING PPC VALVE ................................. 10-110
TRAVEL PPC PEDAL ............................... 10-114
SERVICE PPC PEDAL ............................. 10-113
SAFETY LOCK SWITCH .......................... 10-117
PPC MANIFOLD BLOCK .......................... 10-118
PPC MANIFOLD BLOCK
PRESSURE SWITCHES .......................... 10-119
SOLENOID VALVE ................................... 10-120
TRAVEL SPEED - SWING BRAKE -
2-STAGE RELIEF SUSPENSION
SOLENOID VALVE ................................... 10-121
BOOM SAFETY VALVE ............................ 10-122
HYDRAULIC CYLINDERS
(BOOM, ARM & BUCKET) ........................ 10-125
OUTRIGGER CYLINDER ......................... 10-127
DOZER BLADE CYLINDER...................... 10-128
WORK EQUIPMENT................................. 10-129
ELECTRICAL WIRING DIAGRAM ............ 10-130-1
ENGINE CONTROL SYSTEM .................. 10-131
MACHINE MONITOR SYSTEM ................ 10-160
OVERLOAD WARNING DEVICE ............. 10-167
BREAKER MODE HYDRAULIC
PERFORMANCE ...................................... 10-168

4. 10-2
STRUCTURE AND FUNCTION
ENIGNE RELATED PARTS
ENGINE RELATED PARTS
1. Air cleaner
2. Intake hose
3. Muffler
4. Rear engine mount
5. Front engine mount

5. 10-3
STRUCTURE AND FUNCTION
RADIATOR AND OIL COOLER
RADIATOR AND OIL COOLER
SPECIFICATIONS
RADIATOR
- Core type: CWX-4
- Fin pitch: 3.5/2 mm
- Total radiation area: 40.37 m2
- Pressure valve cracking pressure:
0.05 MPa (0.5 kg/cm2
)
- Vacuum valve cracking pressure:
-0.005 MPa (-0.05 kg/cm2
)
OIL COOLER
- Core Type: CF40-1
- Fin pitch: 4.5/2 mm
- Total radiation area 10.41 m2
1. Radiator outlet hose
2. Radiator cap
3. Radiator
4. Radiator inlet hose
5. Fan guard
6. Fan
7. Drain valve
8. Shroud
9. Oil cooler
10. Reservoirtank

6. 10-4
STRUCTURE AND FUNCTION
PTO (COUPLING)
PTO (COUPLING)
1. Shaft
2. Coupling
3. Breather
4. Cage
5. Hydraulic pump
6. Oil filler plug
7. Level plug

7. 10-5
STRUCTURE AND FUNCTION
POWER TRAIN - 20 Km/h TRAVEL SPEED SPEC.
POWER TRAIN
1. Front axle
2. Center swivel joint
3. Swing motor
4. Control valve
5. Swing brake solenoid valve
6. Travel speed solenoid valve
7. Travel motor
8. Propshaft
9. Hydraulic pump
10. Engine
11. Swing machinery
12. Swing circle
13. Transmission
14. Rear axle

8. 10-6
STRUCTURE AND FUNCTION
POWER TRAIN - 30 Km/h TRAVEL SPEED SPEC.
POWER TRAIN
1. Front axle
2. Center swivel joint
3. Swing motor
4. Control valve
5. Swing brake solenoid valve
6. Travel speed solenoid valve
7. Travel motor
8. Propshaft
9. Hydraulic pump
10. Engine
11. Swing machinery
12. Swing circle
13. Transmission
14. Rear axle
15. Gear pump
16. Priority valve
17. Power brake valve
18. Clutch
18

9. 10-7
STRUCTURE AND FUNCTION
SWING CIRCLE
SWING CIRCLE
1. Outer race
2. Ball
3. Inner race
a. Inner race soft zone "S" position
b. Outer race soft zone "S" position
Specifications
Reduction ratio: 90
11
= 8.182
Amount of grease: 10 l (Grease: (G2-LI)

10. 10-8
STRUCTURE AND FUNCTION
SWING MACHINERY
SWING MACHINERY
1. Swing pinion (No. of teeth:11)
2. Case
3. No. 2 sun gear (No. of teeth: 17)
4. No. 2 planetary carrier (No. of teeth: 17)
5. Ring gear (No. of teeth:61)
6. No. 1 planetary carrier (No. of teeth: 17)
7. No. 1 sun gear (No. of teeth: 14)
8. Oil level gauge/oil filler port
9. Swing motor
10. No. 1 planetary gear (No. of teeth: 24)
11. No. 2 planetary gear (No. of teeth: 22)
12. Drain plug
13. Swing circle
Specification
Reduction ratio 14 + 61 x 17 +61
14 17
= 24.586

11. 10-9
UNDERCARRIAGE
STRUCTURE AND FUNCTION
UNDERCARRIAGE
1. Undercarriage
2. Step
3. Wheel chock
4. Front oscillating steering axle
5. Rear axle
6. Propshaft
7. Travel motor
8. Transmission
9. Double wheel ass'y
10. Single wheel ass'y

12. 10-11
STRUCTURE AND FUNCTION
TRANSMISSION - 20 Km/h TRAVEL SPEED SPEC.
TRANSMISSION
1. Screw-fork to shaft
2. Flange
3. Brake cylinder
4. Brake drum
5. Friction disk
6. Flange
7. Gear
8. Cover
9. Output shaft
10. Bearing
11. Gear
Specification
Reduction ratio: 2.265 : 1

13. 10-12
TRANSMISSION
STRUCTURE AND FUNCTION
CLUTCH ASS'Y - 30 Km/h TRAVEL SPEED SPEC.
1. Casing
2. Drive shaft
3. Friction plates
4. Spring discs
5. Gear
6. Clutch control gear pump
7. Plug
8. Plug
TRANSMISSION - 30 Km/h TRAVEL SPEED SPEC.
1. Screw-fork to shaft
2. Flange
3. Brake cylinder
4. Brake drum
5. Friction disk
6. Flange
7. Gear
8. Cover
9. Output shaft
10. Bearing
11. Gear
12. Clutch ass'y
Specification
Reduction ratio: 1.846 : 1

14. 10-13
STRUCTURE AND FUNCTION
CLUTCH CONTROL CIRCUIT (30 Km/h SPEC. ONLY)
CLUTCH
STRUCTURE
1. Clutch control pump
2. Clutch control valve

15. 10-14
STRUCTURE AND FUNCTION
FUNCTION
The clutch is a device which automatically disen-
gages the drive between the large diplacement
(Rear) travel motor and the transmission. This oc-
curs when the machine is accelerating and the dis-
engagement occurs at 11 Kph. The transmission
system becomes more efficient (by reducing losses
caused by the unnecessary rotation of the rear
travel motor) providing better acceleration and ena-
bling a maximum speed of 30 Kph.
When the machine decelerates from a high speed
the clutch will re-engage automatically at 9 Kph and
will remain engaged until the speed is increased
above 11 Kpm again.
CLUTCH

16. 10-15
STRUCTURE AND FUNCTION
AXLE
OUTLINE
• Each axle consists of an axle housing support-
ing the chassis weight, a differential set in the
axle housing, a final drive, and a brake provided
at each end.
• A trunnion-type axle shaft with a king pin at the
final drive end is used to enable the direction of
travel of the machine to be changed.
FRONT AXLE
AXLE

17. 10-16
STRUCTURE AND FUNCTION
REAR AXLE
AXLE

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