Komatsu Avance Loader WA120-3CS Shop Manual SEBM012402 PDF

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Komatsu Avance Loader WA120-3CS Shop Manual SEBM012402  – PDF DOWNLOAD

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Komatsu Avance Loader WA120-3CS Shop Manual SEBM012402  – PDF DOWNLOAD

Language : English
Pages : 421
Downloadable : Yes
File Type : PDF

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TABLE OF CONTENTS:

Komatsu Avance Loader WA120-3CS Shop Manual SEBM012402  – PDF DOWNLOAD

• MACHINE MODEL    SERIAL NUMBER
  WA120-3CS                   10004 and up

COVER 1
CONTENTS 2
01 GENERAL 22
GENERAL ASSEMBLY DRAWING 23
SPECIFCATIONS 24
WEIGHT TABLE 27
LIST OF LUBRICANT AND WATER 28
10 STRUCTURE AND FUNCTION 30
OUTLINE 31
POWER TRAIN SYSTEM 32
DAMPER 34
HST PIPING 35
HYDRAULIC CIRCUIT DIAGRAM FOR HYDROSTATIC TRANSMISSION(HST) 36
MAIN PISTON PUMP 38
HIGH-PRESSURE RELIEF VALVE 40
LOW-PRESSURE RELIEF VALVE 42
HST CHARGE PUMP 43
CHARGE PUMP OIL FILTER 45
SPEED RELATED VALVE(DA VALVE) 46
HIGH-PRESSURE CUT-OFF VALVE 47
PISTON MOTOR 48
DIRECTIONAL SHUTTLE VALVE 50
SERVO VALVE 51
INTERMEDIATE FIXED CONTROL OF ANGLE 52
INCHING VALVE 53
TRANSFER 54
HST CONTROL 55
DRIVE SHAFT 56
AXLE 57
DIFFERENTIAL 59
FINAL DRIVE 62
AXLE MOUNT 64
CENTER HINGE PIN 65
STEERING PIPING 66
STEERING COLUMN 67
PRIORITY VALVE 68
STEERING VALVE(ORBIT-ROLL) 72
BRAKE PIPING 80
BRAKE CONTROL 81
BRAKE 82
BRAKE MASTER CYLINDER 84
PARKING BRAKE CONTROL 87
PARKING BRAKE 88
HYDRAULIC PIPING 89
WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM 91
WORK EQUIPMENT LEVER LINKAGE 93
HYDRAUIC TANK 94
HYDRAULIC FILTER 95
MAIN CONTROL VALVE 96
WORK EQUIPMENT LINKAGE 104
BUCKET 106
BUCKET POSITIONER 107
PROXIMITY SWITCH 108
CANOPY 109
ELECTRIC CIRCUIT DIAGRAM 110
CENTRAL PANEL(CLUSTER GAUGE) 111
SENSOR 112
ENGINE STARTING CIRCUIT 113
ENGINE STOP CIRCUIT 114
PARKING BRAKE CIRCUIT 115
20 TESTING AND ADJUSTING 117
STANDARD VALUE TABLE FOR ENGINE 118
STANDARD VALUE TABLE FOR CHASSIS 119
STANDARD VALUE TABLE FOR ELECTRICAL PARTS 123
TABLE OF TOOLS FOR TESTING,ADJUSTING,AND TROUBLESHOOTING 127
MEASURING ENGINE SPEED 129
MEASURING EXHAUST COLOR 130
ADJUSTING VALVE CLEARANCE 131
MEASURING COMPRESSION PRESSURE 132
MEASURING BLOW-BY PRESSURE 133
TESTING AND ADJUSTING FUEL INJECTION TIMING 134
MEASURING ENGINE OIL PRESSURE 135
TESTING AND ADJUSTING FAN BELT TENSION 135
METHOD FOR ADJUSTING ENGINE STOP MOTOR CABLE 136
TESTING AND ADJUSTING HST OIL PRESSURE 138
TESTING AND ADJUSTING STEERING OIL PRESSURE 142
BLEEDING AIR FROM STEERING CIRCUIT 144
MEASURING BRAKE PERFORMANCE 145
TESTING DROP IN WHEEL BRAKE OIL PRESSURE 146
MEASURING WHEEL BRAKE DISC WEAR 147
BLEEDING AIR FROM WHEEL BRAKE CIRCUIT 148
ADJUSTING WHEEL BRAKE LINKAGE 149
MEASURING PARKING BRAKE PERFORMANCE 150
TESTING AND ADJUSTING PARKING BRAKE LINKAGE 151
MEASURING WORK EQUIPMENT HYDRAULIC PRESSURE 152
BLEEDING AIR FROM WORK EQUIPMENT CIRCUIT 154
ADJUSTING WORK EQUIPMENT LEVER LINKAGE 155
TESTING AND ADJUSTING BUCKET POSITIONER 156
TROUBLESHOOTING 157
POINTS TO REMEMBER WHEN TROUBLESHOOTING 158
SEQUENCE OF EVENTS IN TROUBLESHOOTING 159
POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE 160
CHECKS BEFORE TROUBLESHOOTING 168
CONNECTOR TYPES AND MOUNTING LOCATIONS 169
CONNECTOR PIN ARRANGEMENT DIAGRAM 171
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS 174
METHOD OF USING FAILURE MODE AND JUDGEMENT TABLE 184
FAILURE MODES AND JUDGEMENT TABLE 185
METHOD OF USING TROUBLESHOOTING CHARTS 187
TROUBLESHOOTING OF ENGINE SYSTEM(S MODE) 189
USING TROUBLESHOOTING CHARTS FOR ENGINE-RELATED FAILURE 190
S- 1 STARTING PERFORMANCE IS POOR(STARTING ALWAYS TAKES TIME) 194
S- 2 ENGINE DOES NOT START 195
(1) ENGINE DOES NOT TURN 195
(2) ENGINE TURNS BUT TO EXHAUST GAS COMES OUT(FUEL IS NOT BEING INJECTED) 196
(3) EXHAUST GAS COMES OUT BUT ENGINE DOES NOT START(FUEL IS BEING INJECTED) 197
S- 3 ENGINE DOES NOT PICK UP SMOOTHLY(FOLLOW-UP IS POOR) 198
S- 4 ENGINE STOPS DURING OPERATIONS 199
S- 5 ENGINE DOES NOT ROTATE SMOOTHLY(HUNTING) 200
S- 6 ENGINE LACKS OUTPUT(NO POWER) 201
S- 7 EXHAUST GAS IS BLACK(INCOMPLETE COMBUSTION) 202
S- 8 OIL CONSUMPTION IS EXCESSIVE(OR EXHAUST GAS IS BLUE) 203
S- 9 OIL BECOMES CONTAMINATED QUICKLY 204
S-10 FUEL CONSUMPTION IS EXCESSIVE 205
S-11 OIL IS IN COOLING WATER,OR WATER SPURTS BACK,OR WATER LEVEL GOES DOWN 206
S-12 OIL PRESSURE LAMP LIGHTS UP(DROP IN OIL PRESSURE) 207
S-13 OIL LEVEL RISES 208
S-14 WATER TEMPERATURE BECOMES TOO HIGH(OVERHEATING) 209
S-15 ABNORMAL NOISE IS MADE 210
S-16 VIBRATION IS EXCESSIVE 211
TROUBLESHOOTING OF ELECTRICAL SYSTEM(E MODE) 212
ELECTRICAL CIRCUIT SYSTEM DIAGRAM FOR ENGINE STARTING,STOP SYSTEM 213
ELECTRICAL CIRCUIT SYSTEM DIAGRAM FOR HST SYSTEM 214
ELECTRICAL CIRCUIT SYSTEM DIAGRAM FOR BUCKET POSITIONER SYSTEM 215
E-1 ENGINE DOES NOT START 216
a) ENGINE DOES NOT TURN(STARTING MOTOR SYSTEM) 216
b) STARTING MOTOR TURN(ENGINE STOP MONITOR SYSTEM) 219
E-2 ENGINE DOES NOT STOP 221
E-3 DOES NOT TRAVEL IN ANY DIRECTION(FORWARD OR REVERSE) 222
E-4 DOES NOT TRAVEL FORWARD(REVERSE IS NORMAL) 224
E-5 DOES NOT TRAVEL IN REVERSE(FORWARD IS NORMAL) 225
E-6 HI-LO MODE DOES NOT SWITCH 226
a) STAYS IN HI AND DOES NOT SWITCH TO LO 226
b) STAYS IN LO AND DOES NOT SWITCH TO HI 226
E-7 DEFECTIVE ACTUATION OF BUCKET POSITIONER 227
a) BUCKET CONTROL LEVER IS NOT HELD AT TILT POSITION 227
b) BUCKET CONTROL LEVER DOES NOT RETURN FROM TILT POSITION TO HOLD 227
TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM(H MODE) 229
FAILURE MODES AND CAUSES 230
H- 1 DOES NOT TRAVEL IN ANY DIRECTION(FORWARD OR REVERSE) 232
H- 2 DOES NOT TRAVEL FORWARD(REVERSE IS NORMAL) 234
H- 3 DOES NOT TRAVEL IN REVERSE(FORWARD IS NORMAL) 234
H- 4 TRAVEL SPEED IS SLOW IN BOTH DIRECTIONS(FORWARD AND REVERSE) 235
H- 5 TRAVEL SPEED IS SLOW IN FORWARD(REVERSE IS NORMAL) 236
H- 6 TRAVEL SPEED IS SLOW IN REVERSE(FORWARD IS NORMAL) 236
H- 7 DRAWBAR PULL IS WEAK IN BOTH DIRCTIONS(FORWARD AND REVERSE) 237
H- 8 DRAWBAR PULL IS WEAK IN FORWARD(REVERSE IS NORMAL) 237
H- 9 DRAWBAR PULL IS WEAK IN REVERSE(FORWARD IS NORMAL) 237
H-10 ENGINE STALLS WHEN TRAVELING,OR THERE IS EXCESSIVE DROP IN ENGINE SPEED 238
H-11 HI-LO MODE DOES NOT SWITCH 238
H-12 STEERING DOES NOT TURN 239
H-13 STEERING EFFECT,RESPONSE IS POOR 239
H-14 STEERING WHEEL IS HEAVY 240
H-15 STEERING WOBBLES OR JERKS 240
H-16 STEERING DEVIATES TO ONE SIDE WHEN TRAVELING 240
H-17 WHEEL BRAKE HAS NO EFFECT OR EFFECT IS POOR 241
H-18 WHEEL BRAKE CANNOT BE RELEASED OR BRAKE DRAGS 241
H-19 BOOM AND BUCKET DO NOT MOVE AT SAME TIME 242
H-20 BOOM AND BUCKET SPEED IS SLOW OR LACKS POWER WHEN OPERATED AT SAME TIME 242
H-21 BOOM DOES NOT MOVE 243
H-22 BOOM SPEED IS SLOW OR LACKS POWER 243
H-23 BOOM DOES NOT MOVE TO FLOAT POSITION 243
H-24 EXCESSIVE HYDRAULIC DRIFT OF BOOM 244
H-25 BOOM CONTROL LEVER IS HEAVY 244
H-26 BUCKET DOES NOT MOVE 245
H-27 BUCKET SPEED IS SLOW OR LACKS POWER 245
H-28 DEFECTIVE ACTUATION OF BUCKET POSITIONER 245
H-29 EXCESSIVE HYDRAULIC DRIFT OF BUCKET 246
H-30 BUCKET CONTROL LEVER IS HEAVY 246
TROUBLESHOOTING OF MONITOR PANEL SYSTEM(M MODE) 247
ELECTRICAL CIRCUIT SYSTEM 249
M-1 ABNORMALITY IN MONITOR PANEL POWER SOURCE SYSTEM OR GND SYSTEM 251
a) WHEN STARTING SWITCH IS TURNED ON,”FILTER CLOGGING”,”ENGINE OIL PRESSURE”,”PARKING BRAKE”,”BRAKE OIL LEVEL”,AND “PREHEATING”LAMPS DO NOT LIGHT UP AT THE SAME TIME(POWER SOURCE SYSTEM) 251
b) WHEN STARTING SWITCH IS TURNED ON,”BATTERY CHARGE”,”HI BEAM”,AND “SERVICE METER” LAMPS DO NOT LIGHT UP AT THE SAME TIME(GND SYSTEM) 251
M-2 ABNORMALITY IN BRAKE OIL LEVEL CAUTION LAMP 253
a) WHEN STARTING SWITCH IS TURNED ON,LAMPS DO NOT LIGHT UP 253
b) WHEN ENGINE IS RUNNING,ENGINE OIL PRESSURE IS NORMAL BUT LAMP LIGHTS UP 253
c) WHEN THE ENGINE IS RUNNING,THE ENGINE OIL PRESSURE IS ABNORMAL BUT THE LAMP DOES NOT LIGHT UP 254
M-3 ABNORMALITY IN PARKING BRAKE PILOT LAMP 255
a) LAMP DOES NOT LIGHT UP WHEN PARKING BRAKE PEDAL IS OPERATED 255
b) LAMP DOES NOT GO OUT WHEN PARKING BRAKE PEDAL IS RELEASED 256
M-4 ABNORMALITY IN ENGINE OIL PRESSURE CAUTION LAMP 257
a) LAMP DOES NOT LIGHT UP WHEN STARTING SWITCH IS TURNED ON 257
b) LAMP LIGHTS UP WHEN ENGINE IS RUNNING 257
M-5 ABNORMALITY IN CHARGE CAUTION LAMP 258
a) LAMP DOES NOT LIGHT UP WHEN STARTING SWITCH IS TURNED ON 258
b) LAMP LIGHTS UP WHEN ENGINE IS RUNNIG 259
M-6 ABNORMALITY IN PARKING BRAKE NOT APPLIED CAUTION LAMP AND BUZZER 260
a) ENGINE IS STOPPED AND PARKING BRAKE PEDAL IS DEPRESSED,BUT LAMP LIGHTS UP AND BUZZER SOUNDS 260
b) ENGINE IS STOPPED AND PARKING BRAKE PEDAL IS RELEASED,BUT LAMP IS OUT AND BUZZER DOES NOT SOUND 260
c) WHEN ENGINE IS RUNNING,LAMP LIGHTS UP AND BUZZER SOUNDS 261
M-7 ABNORMALITY IN HST OIL FILTER CLOGGING CAUTION LAMP 262
a) LAMP DOES NOT LIGHT UP WHEN STARTING SWITCH IS TURNED ON 262
b) WHEN THE ENGINE IS RUNNING,THE LAMP LIGHTS UP EVEN WHEN THE FILTER IS NOT CLOGGED 262
c) WHEN THE ENGINE IS RUNNING,THE LAMP DOES NOT LIGHT UP EVEN WHEN THE FILTER IS CLOGGED 263
M-8 ABNORMALITY IN HST OIL TEMPERATURE GAUGE 264
a) GAUGE DOES NOT RISE FROM C (LOWEST POSITION) 264
b) GAUGE DOES NOT GO DOWN FROM H (HIGHEST POSITION) 264
c) HST OIL TEMPERATURE AND GAUGE DISPLAY DO NOT MATCH 265
M-9 ABNORMALITY IN ENGINE WATER TEMPERATURE GAUGE 266
a) GAUGE DOES NOT RISE FROM C (LOWEST POSITION) 266
b) GAUGE DOES NOT GO DOWN FROM H (HIGHEST POSITION) 266
c) ENGINE WATER TEMPERATURE AND GAUGE DISPLAY DO NOT MATCH 267
M-10 ABNORMALITY IN FUEL GAUGE 268
a) GAUGE DOES NOT RISE FROM E (LOWEST POSITION) 268
b) GAUGE DOES NOT GO DOWN FROM F (HIGHEST POSITION) 268
c) FUEL LEVEL AND GAUGE DISPLAY DO NOT MATCH 269
M-11 ABNORMALITY IN SERVICE METER 270
a) SERVICE METER ADVANCES EVEN WHEN ENGINE IS STOPPED 270
b) SERVICE METER DOES NOT ADVANCE WHEN ENGINE IS RUNNING 270
c) WHEN SERVICE METER IS ADVANCING,INDICATOR LAMP DOES NOT FLASH 270
M-12 ABNORMALITY IN HEAD LAMP,SIDE LAMP,AND LICENSE LAMP 272
a) WHEN LAMP SWITCH IS AT POSITION I,NONE OF HEAD LAMP,SIDE LAMP,AND LICENSE LAMP LIGHT UP 272
b) WHEN LAMP SWITCH IS AT POSITION I,HEAD LAMP DOES NOT LIGHT UP(SIDE LAMP AND LICENSE LAMP ARE NORMAL) 273
c) WHEN LAMP SWITCH IS AT POSITION I,SIDE LAMP AND LICENSE LAMP DO NOT LIGHT UP(HEAD LAMP IS NORMAL) 274
d) WHEN LAMP SWITCH IS AT POSITION II,HEAD LAMP DOES NOT SWITCH TO HI BEAM 275
e) WHEN LAMP SWITCH IS AT POSITION II,HI BEAM PILOT LAMP ON MONITOR PANEL DOES NOT LIGHT UP 275
M-13 ABNORMALITY IN TURN SIGNAL LAMP(TURN SIGNAL INDICATOR) 276
a) NEITHER LEFT OR RIGHT TURN SIGNAL LAMPS FLASH 276
b) TURN SIGNAL LAMP FLASHES ON ONE SIDE ONLY 276
c) TURN SIGNAL PILOT LAMP ON MONITOR DOES NOT FLASH 277
M-14 ABNORMALITY IN STOP LAMP 278
a) STOP LAMP DOES NOT LIGHT UP WHEN BRAKE PEDAL IS DEPRESSED 278
b) STOP LAMP LIGHTS UP EVEN WHEN BRAKE PEDAL IS NOT BEING DEPRESSED 278
30 DISASSEMBLY AND ASSEMBLY 279
METHOD OF USING MANUAL 281
PRECAUTIONS WHEN CARRYING OUT OPERATION 282
SPECIAL TOOL LIST 284
SKETCHES OF SPECIAL TOOLS 287
STARTING MOTOR 289
REMOVAL AND INSTALLATION 289
ALTERNATOR 290
REMOVAL AND INSTALLATION 290
FUEL INJECTION PUMP 291
REMOVAL 291
INSTALLATION 292
NOZZLE HOLDER 293
REMOVAL AND INSTALLATION 293
WATER PUMP 294
REMOVAL AND INSTALLATION 294
THERMOSTAT 295
REMOVAL AND INSTALLATION 295
ENGINE OIL COOLER 296
REMOVAL AND INSTALLATION 296
CYLINDER HEAD 297
REMOVAL 297
INSTALLATION 300
RADIATOR 302
REMOVAL 302
INSTALLATION 305
ENGINE,HYDRAULIC PUMP 306
REMOVAL 306
INSTALLATION 309
FUEL TANK 310
REMOVAL AND INSTALLATION 310
DAMPER 311
REMOVAL 311
INSTALLATION 312
HST PUMP 313
REMOVAL 313
INSTALLATION 314
HST MOTOR 315
REMOVAL 315
INSTALLATION 316
TRANSFER 317
REMOVAL 317
INSTALLATION 318
DISASSEMBLY 319
ASSEMBLY 325
FRONT AXLE 331
REMOVAL 331
INSTALLATION 332
REAR AXLE 333
REMOVAL 333
INSTALLATION 335
AXLE 337
DISASSEMBLY 337
ASSEMBLY 343
CENTER HINGE PIN 353
REMOVAL 353
INSTALLATION 357
STEERING,HYDRAULIC PUMP 361
REMOVAL AND INSTALLATION 361
STEERING VALVE 362
REMOVAL 362
INSTALLATION 363
STEERING CYLINDER 364
REMOVAL 364
INSTALLATION 365
DISASSEMBLY 366
ASSEMBLY 369
BRAKE MASTER CYLINDER 372
REMOVAL AND INSTALLATION 372
INCHING VALVE 373
REMOVAL AND INSTALLATION 373
HYDRAULIC TANK 374
REMOVAL AND INSTALLATION 374
MAIN CONTROL VALVE 375
REMOVAL AND INSTALLATION 375
BOOM CYLINDER 376
REMOVAL 376
INSTALLATION 377
BUCKET CYLINDER 378
REMOVAL 378
INSTALLATION 379
BOOM,BUCKET CYLINDER 380
DISASSEMBLY 380
ASSEMBLY 382
BUCKET 384
REMOVAL AND INSTALLATION 384
BOOM 385
REMOVAL 385
INSTALLATION 386
ENGINE HOOD 387
REMOVAL AND INSTALLATION 387
CANOPY 388
REMOVAL AND INSTALLATION 388
FLOOR FRAME 389
REMOVAL 389
INSTALLATION 392
COUNTERWEIGHT(REAR END) 393
REMOVAL AND INSTALLATION 393
COUNTERWEIGHT(LOWER PORTION) 394
REMOVAL AND INSTALLATION 394
MONITOR PANEL 395
REMOVAL AND INSTALLATION 395
40 MAINTENANCE STANDARD 396
ENGINE MOUNT 397
TRANSFER MOUNT 398
TRANSFER 399
HST INCHING VALVE 401
DRIVE SHAFT 402
DIFFERENTIAL 403
FINAL DRIVE 406
AXLE MOUNT 407
CENTER HINGE PIN 408
STEERING COLUMN 409
PRIORITY VALVE 410
STEERING CYLINDER MOUNT 411
PARKING BRAKE 412
HYDRAULIC AND STEERING PUMP 413
HYDRAULIC CYLINDER 414
WORK EQUIPMENT LINKAGE 415
BUCKET 417
BUCKET POSITIONER 418
90 OTHERS 419
ELECTRIC CIRCUIT DIAGRAM(1/2) 420
ELECTRIC CIRCUIT DIAGRAM(2/2) 421

DESCRIPTION:

Komatsu Avance Loader WA120-3CS Shop Manual SEBM012402  – PDF DOWNLOAD

• MACHINE MODEL    SERIAL NUMBER
  WA120-3CS                   10004 and up

GENERAL PRECAUTIONS:
Mistakes in operation are extremely dangerous. Read the Operation and Maintenance Manual carefully BEFORE operating the machine.
1. Before carrying out any greasing or repairs, read all the precautions given on the decals which are fixed to the machine.
2. When carrying out any operation, always wear safety shoes and helmet. Do not wear loose work clothes, or clothes with buttons missing.
• Always wear safety glasses when hitting parts with a hammer.
Always wear safety glasses when grinding parts with a grinder, etc.
3. If welding repairs are needed, always have a trained, experienced welder carry out the work. When carrying out welding work, always wear welding gloves, apron, glasses, cap and other clothes suited for welding work.
4. When carrying out any operation with two or more workers, always agree on the operating procedure before starting. Always inform your fellow workers before starting any step of the operation. Before starting work, hang UNDER REPAIR signs on the controls in the operator’s compartment.
5. Keep all tools in good condition and learn the correct way to use them.

6. Decide a place in the repair workshop to keep tools and removed parts. Always keep the tools and parts in their correct places. Always keep the work area clean and make sure that there is no dirt or oil on the floor. Smoke only in the areas provided for smoking. Never smoke while working.
PREPARATIONS FOR WORK:
7. Before adding oil or making any repairs, park the machine on hard, level ground, and block the wheels or tracks to prevent the machine from moving.
8. Before starting work, lower blade, ripper, bucket or any other work equipment to the ground. If this is not possible, insert the safety pin or use blocks to prevent the work equipment from falling. In addition, be sure to lock all the control levers and hang warning signs on them.
9. When disassembling or assembling, sup- port the machine with blocks, jacks or stands before starting work.
10. Remove all mud and oil from the steps or other places used to get on and off the machine. Always use the handrails, ladders or steps when getting on or off the machine. Never jump on or off the machine. If it is impossible to use the handrails, ladders or steps, use a stand to provide safe footing.

PRECAUTIONS DURING WORK:
11. When removing the oil filler cap, drain plug or hydraulic pressure measuring plugs, loosen them slowly to prevent the oil from spurting out.
Before disconnecting or removing components of the oil, water or air circuits, first remove the pressure completely from the circuit.
12. The water and oil in the circuits are hot when the engine is stopped, so be careful not to get burned.
Wait for the oil and water to cool before carrying out any work on the oil or water circuits.
13. Before starting work, remove the leads from the battery. Always remove the lead from the negative (-) terminal first.
14. When raising heavy components, use a hoist or crane.
Check that the wire rope, chains and hooks are free from damage.
Always use lifting equipment which has ample capacity.
Install the lifting equipment at the correct places. Use a hoist or crane and operate slowly to prevent the component from hit- ting any other part. Do not work with any part still raised by the hoist or crane.
15. When removing covers which are under internal pressure or under pressure from a spring, always leave two bolts in position on opposite sides. Slowly release the pressure, then slowly loosen the bolts to remove.
16. When removing components, be careful not to break or damage the wiring. Damaged wiring may cause electrical fires.
17. When removing piping, stop the fuel or oil from spilling out. If any fuel or oil drips on to the floor, wipe it up immediately. Fuel or oil on the floor can cause you to slip, or can even start fires.

G.B 18/12/24