PDF Shop Manual Komatsu PW130-7K Wheeled Excavator - 3 MB
The official shop manual for the Komatsu PW130-7K Wheeled Excavator is the ultimate resource for service and repair.
This detailed guide provides specifications, testing and adjusting procedures, and disassembly/assembly instructions for every major component.
It's an indispensable tool for professional mechanics aiming to maintain the high performance and reliability of this machine.
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--- Page 1 ---
UEBM002800
PW130-7K
MACHINE MODEL SERIAL NUMBER
PW130-7K 00 K40001 AND UP 00
q 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.
q PW130-7K mount the SAA4D102E-2 engine.
For details of the engine, see the 102 Series Engine Shop Manual.
© 2005
All Rights Reserved 00-1
Printed in Belgium 05-07
--- Page 3 ---
FORWORD COATING MATERIALS
Category Code Part No. Quantity Container Main applications, features
q Features: Resistance to water, oil
q Used as sealant for flange surface, thread.
LG-4 790-129-9020 200 g Tube
q Also possible to use as sealant for flanges
with large clearance.
q Used as sealant for mating surfaces of final
drive case, transmission case.
q Used as sealant for various threads, pipe
Polyethylene joints, flanges.
LG-5 790-129-9080 1 kg
container q Used as sealant for tapered plugs, elbows,
nipples of hydraulic piping.
sealant
Gasket
q Features: Silicon based, resistant to heat,
cold.
LG-6 09940-00011 250 g Tube q Used as sealant for flange surface, thread.
q Used as sealant for oil pan, final drive case,
etc.
q Features: Silicon based, quick hardening
type.
LG-7 09920-00150 150 g Tube
q Used as sealant for flywheel housing, intake
manifold, oil pan, thermostat housing, etc.
Three
q Used as heat-resisting sealant for repairing
bond 790-129-9090 100 g Tube
engines.
1211
q Used as lubricant for sliding parts (to prevent
Molybdenum
LM-G 09940-00051 60 g Can
disulphide
squeaking).
lubricant
q Used to prevent seizure or scuffing of the
LM-P 09940-00040 200 g Tube thread when press fitting or shrink fitting.
q Used as lubricant for linkage, bearings, etc.
SYG2-400LI
SYG2-350LI
G2-LI SYG2-400LI-A Various Various q General purpose type
SYG2-160LI
SYGA160CNLI
SYG2-400CA
SYG2-350CA
q Used for normal temperature, light load bear-
G2-CA SYG2-400CA-A Various Various
Grease
ing at places in contact with water or steam.
SYG2-160CA
SYG2-160CNCA
disulphide lubricant
Molybdenum
400 g
SYG2-400M Belows type q Used for places with heavy load.
(10 per case)
00-11
--- Page 4 ---
FORWORD CONVERSION TABLES
12
Temperature Centigrade degrees, consider the center column as a
Fahrenheit Centigrade Conversion; a simple way to table of Fahrenheit temperatures and read the corre-
convert a Fahrenheit temperature reading into a sponding Centigrade temperature in the column at
Centigrade temperature reading or vise versa is to the left. If it is desired to convert from Centigrade to
enter the accompanying table in the center or bold- Fahrenheit degrees, consider the center column as a
face column of figures. These figures refer to the table of Centigrade values, and read the correspond-
temperature in either Fahrenheit or Centigrade ing Fahrenheit temperature on the right.
degrees. If it is desired to convert from Fahrenheit to
°C °F °C °F °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 37.8 100 212.0
-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
-17.8 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
00-21
--- Page 5 ---
GENERAL WEIGHT TABLE
12
1 PIECE BOOM
Unit: kg
Machine model PW130-7K
Serial Number K40001 and up
Boom assembly 980
2.1m 291
Arm assembly 2.5m 328
3.0m 442
Bucket assembly 460
Left Hand 135
Lift cylinder
Right Hand 135
Arm cylinder assembly 140
2.1m
Bucket cylinder assembly 2.5m 90
3.0m
Link / pins assembly 112.8
Boom pin 20+12
Arm pin 12
PW130-7K 01-9
--- Page 6 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD POWER TRAIN
1. Front axle 10. Accumulators
2. Centre swivel joint 11. Clutch control valve
3. Swing circle 12. Main control valve
4. Swing motor / machinery 13. Engine
5. Hydraulic / Fuel tank 14. Priority valve
6. Main pump 15. Transmission
7. Gear pump 16. Travel motor
8. Rear axle 17. Propshaft
9. Travel direction solenoid valve 18. Power brake valve
PW130-7K 10-7
--- Page 7 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD TRAVEL MOTOR
OPERATION OF TRAVEL MOTOR
1. During normal travel
5 4 6 1 2
3
1. Travel motor
107
2. Transmission and clutch
Max Angle
Displacement
3. Drive shafts
(cc/rev)
4. Main control valve
5. Main pump
6. Swivel joint
35.5
Min Angle
q Oil is supplied to the travel motor from the control
valve by the travel spool. When the spool is 275 310 355
opened the machine accelerates from the sta- Pressure (kg/cm2)
tionary the pressure at the travel motor rises to
maximum. This high pressure is used to set the
displacement of the travel motor to maximum to
give maximum torque.
q As the machine speed increases, so pressure
required to move the machine will reduce. This
reducing pressure is used to reduce the dis-
placement of the travel motor to allow increasing
speed. The travel motor changes from maximum
displacement to preset minimum. Displacement
changes according to the diagram.
PW130-7K 10-17
--- Page 10 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD HYDRAULIC PUMP
12
LS VALVE
1 2 3 4 5 6 7 8
A B C D E F G
A. Port PLS (Control valve LS pressure inlet port) 1. Plug
B. Port PA (Pump delivery pressure inlet port) 2. Locknut
C. Port PLP (LS valve signal pressure outlet port) 3. Sleeve
D. Port PPL (PC valve signal pressure inlet port) 4. Spring
E. Port Pa (Drain pressure outlet port) 5. Seat
F. Port PSIG (LS control EPC valve pressure inlet port) 6. Spool
7. Piston
G. Port PA (Pump delivery pressure inlet port)
8. Sleeve
PW130-7K 10-47
--- Page 11 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD HYDRAULIC PUMP
PW130-7K 10-57
--- Page 12 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD CONTROL VALVE
12
-
PW130-7K 10-67
--- Page 13 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD CLSS
PW130-7K 10-77
--- Page 14 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD CLSS
PW130-7K 10-87
--- Page 15 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD CLSS
PW130-7K 10-97
--- Page 16 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD SWING MOTOR
PW130-7K 10-107
--- Page 17 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD SERVICE PPC VALVE
SERVICE PPC VALVE
1. Spool T. To tank 5. Lever
2. Metering spring P. From main pump 6. Plate
3. Centering spring P1. Port 7. Retainer
4. Piston P2. Port 8. Body
Unit: mm
No. Check item Criteria Remedy
Standard size Repair limit
Free length x Out- Installed Installed Free Installed
9 Centering spring side diameter length load length load If damaged or
124.5 N 100 N deformed,
33.9 x 15.3 28.4 — replace spring
{12.7 kg} {10.2 kg}
16.7 N 13.7 N
10 Metering spring 22.7 x 8.1 22 —
{1.7 kg} {1.4 kg}
PW130-7K 10-117
--- Page 18 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD HYDRAULIC CYLINDER
HYDRAULIC CYLINDER
BOOM CYLINDER
270 ± 39Nm 294 ± 29.4Nm
(27.5 ± 4kgm) (30 ± 3kgm)
Stroke - 1527~2523 (2PB) 59 ~ 73Nm
1700~2660 (1PB) (6 ~ 7.5kgm)
C
ARM CYLINDER
270 – 39Nm 294 – 29.4Nm
(27.5 – 4kgm) (30 – 3kgm)
Stroke - 1702~2877 58.9 ~ 73.6Nm
(6 ~ 7.5kgm)
B
BUCKET CYLINDER
172 ± 24.5Nm 294 ± 29.4Nm
(17.5 ± 2.5kgm) (30 ± 3kgm)
Stroke - 1378~2263
58.9 ~ 73.6Nm
(6 ~ 7.5kgm) A
PW130-7K 10-127
--- Page 19 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD WORK EQUIPMENT
PW130-7K 10-137
--- Page 21 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD ELECTRONIC CONTROL SYSTEM
12
3. One-touch power maximizing function
Monitor Panel
AA
FUNCTION
q Power can be increased for approximately 8 sec-
onds by depressing the power max switch on LH
work equipment lever.
q The power max function is available in "A" and
"E" working modes only.
PW130-7K 10-157
--- Page 22 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD ELECTRONIC CONTROL SYSTEM
8. ATT flow control, circuit selector function
(option)
Monitor Panel
HCU control switch
LH
Att. direction
control
RH
A
PW130-7K 10-167
--- Page 24 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD MACHINE MONITOR SYSTEM
Checks before starting (caution lamps all light up), perature monitor are stopped, and the following
when maintenance interval is exceeded. cautions are displayed.
If the checks before starting or maintenance interval
is exceeded items light up, the display of the hydrau-
lic oil temperature gauge and the hydraulic oil tem-
Check before
Symbol Display item When engine is stopped When engine is running
starting item
When abnormal, lights
Engine oil pressure Yes --
up and buzzer sounds
Lights up when abnor-
Battery charge Yes --
mal
Lights up when abnor- When abnormal, lights
Radiator water level Yes
mal up and buzzer sounds
Lights up when
Engine oil level Yes --
abnormal
Lights up when
Air cleaner clogging Yes --
abnormal
Lights up when maintenance is due. Lights up for
Maintenance No
only 30 sec. after key is turned ON, then goes out.
The problems that have occurred are displayed in When the above cautions are displayed, if the
order from the left. hydraulic oil temperature is high or low, only the sym-
bol is displayed.
Condition of hydraulic oil Colour of symbol
Low temperature (below B6 or equivalent) Black on white background
Normal (B6 - B2) No display
High temperature (below B2) White on red letters
PW130-7K 10-177
--- Page 25 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD MACHINE MONITOR SYSTEM
10. AUTOMATIC SUSPENSION LOCK SWITCH
Release the front axle suspension lock, using switch.
Press switch (10) for Front axle suspension ‘auto’
mode i.e. when travel pedal is depressed, front axle
suspension travels freely and when travel pedal is
not depressed, front axle suspension is locked, as
long as machine is stationary. To disengage press
10
(10) again.
The auto suspension lock indicator will illuminate
when automatic suspension lock is selected.
WARNING
Take care when using undercarriage attachments to
stabilize the machine, and suspension lock simulta-
neously, as locked front axle may suddenly become
free.
REMARK
Permanent and automatic suspension lock can-
not be active at the same time. Each mode can be
turned on and off by their individual switches.
11. PERMANENT SUSPENSION LOCK SWITCH
Press switch (11) in order to engage permanent front
axle lock. Front axle will be fixed in place when
engaged, the permanent suspension lock indicator
will illuminate. To disengage lock, press switch (11)
again.
11
REMARK
When front axle is locked it is not possible to
travel in high. If high speed travel is selected, axle
will not lock.
12. INPUT CONFIRMATION SWITCH
Press this switch (12) to confirm the selected mode
when in the maintenance mode, brightness/contrast
adjustment mode, or select mode.
12
PW130-7K 10-187
--- Page 26 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD SENSOR
SENSOR
q The signals from the sensors are input to the
panel directly. Either side of a sensor of contact
type is always connected to the chassis ground.
Type of When When
Sensor name
sensor normal abnormal
Engine oil ON OFF
Contact
level (Closed) (Open)
Engine oil OFF ON
Contact
pressure (Open) (Closed)
Hydraulic oil
Resistance — —
temperature
Coolant tem-
Resistance — —
perature
Fuel level Resistance — —
Air cleaner OFF ON
Contact
clogging (Closed) (Open)
PW130-7K 10-197
--- Page 27 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD TRAVEL SYSTEM
1.3. Introduction of Creep control: High Torque - Low supply the motor displacement to maximum giv-
Speed. ing creep speed of 2.2kph
It can be seen from the diagram that the spool
moves across on the torque speed control valve
(2) which directs the flow to move the servo and
PW130-7K 10-207
--- Page 28 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD TRAVEL SYSTEM
5. Travel / Neutral Solenoid.
V06
5.1. Travel Neutral Solenoid Schematic.
5.2. Travel Neutral Solenoid: Located on the 7-
stage solenoid manifold in the service compart-
ment beneath the main control valve. This device
interlocks with the forward / reverse solenoid to
give supply pressure to the foot pedal control
valve.
Solenoid active - PPC pressure to foot valve
Solenoid inactive - No pressure to foot valve
If the travel neutral signal is selected the control-
ler doesn’t drive this solenoid so no PPC travel.
PW130-7K 10-217
--- Page 29 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD STEERING SYSTEM
3. Condition 3.
PW130-7K 10-227
--- Page 30 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD SERVICE BRAKE AND SUSPENSION SYSTEM
SERVICE BRAKE AND SUSPENSION SYSTEM
BRAKING SYSTEM
The hydraulic braking sytem unit contains the follow- q Check Valves:
ing services. to isolate the inlet supply from the charged accu-
mulators and isolate individually charged accu-
mulators from each other, thereby allowing
q Inlet Bypass Valve:
individual brake circuits to be controlled.
distributing flow to other services when braking
demand is low or not required. NOTE: Service brakes1 and 2 are individually sup-
plied but simultaneously applied.
q Accumulators:
for fluid storage providing a number of brake
operations (usually 5 ~ 8 operations depending q Pressure Limiting Valve:
upon accumulator capacity) to control the maximum pressure in the accumu-
lators. This valve provides relief valve protection
and diverts the fluid via its unloaded valve action.
PW130-7K 10-237
--- Page 31 ---
STRUCTURE, FUNCTION, & MAINTENANCE STANDARD STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS
Category Applicable model PW130-7K (Std)
Permissible
Item Measurement Condition Unit Standard value
value
Overrun
deg 75±10 Max. 90
when stop-
Engine running at high idling {mm} {730±100} {Max. 870}
ping swing
Hydraulic oil temperature: 45 - 55°C
Working mode: A mode
Stop after swinging one turn and measure distance
that swing circle moves.
Distance of movement on outside circumference of
swing circle.
90° 2.9±0.3 Max. 3.5
Time taken
to start swing Engine running at high idling 180° 4.0 8.5
Hydraulic oil temperature: 45 -
55°C
In H/O mode
Time taken to swing 90° and 180°
from starting position.
sec
Swing
Time taken
26.0 ±2.5 Max. 30
to swing
Engine running at high idling
Hydraulic oil temperature: 45 - 55°C
In H/O mode
Swing one turn and measure time taken to swing next
5 turns.
15o
Hydraulic
mm 0 0
drift of swing
Engine stopped
Hydraulic oil temperature: 45 - 55°C
Set the machine on 15° slope, and sset upper struc-
ture at 90° to the side.
Make match marks on swing circle outer race and
track frame.
Measure distance that match marks move apart after
15 minutes.
PW130-7K 20-5
--- Page 32 ---
TESTING AND ADJUSTING ADJUSTMENT OF ENGINE SPEED SENSOR
ADJUSTMENT OF ENGINE SPEED SENSOR
q Detach engine speed sensor (1) before the
adjustment, then check that there is no metal
dust stuck or damage at the tip and fit it again.
1. Screw in until the tip of sensor (1) contact gear
(2).
2. When gear (2) contact sensor (1), turn back one
turn.
3. Tighten (3).
Q Be particulary careful when securing the
sensor wiring to ensure that no excessive
force is brought to bear on the wiring.
Q Be careful not to let the tip of the sensor be
scratched or to let any iron particles stick to
the sensor tip.
PW130-7K 20-103
--- Page 33 ---
TESTING AND ADJUSTING INSPECTION AND ADJUSTMENT OF CONTROL CIRCUIT OIL PRESSURE
PROCEDURE FOR PRESSURE REDUCING AD-
JUSTMENT
1. Remove dust cap (1).
2. Loosen off adjusting screw nut (2).
1 2
3. Tighten adjusting screw (3) to increase pressure
and loosen to decrease pressure.
3
4. When at correct pressure tighten adjusting screw