Komatsu WA450-2 Wheel Loader Shop Manual CEBMW21020 PDF

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Komatsu WA450-2 Wheel Loader Shop Manual CEBMW21020 – PDF DOWNLOAD

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Komatsu WA450-2 Wheel Loader Shop Manual CEBMW21020 – PDF DOWNLOAD 

Language : English
Pages : 849
Downloadable : Yes
File Type : PDF

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TABLE OF CONTENTS:

Komatsu WA450-2 Wheel Loader Shop Manual CEBMW21020 – PDF DOWNLOAD 

MACHINE MODEL    SERIAL NUMBERS
WA450-2                    A25001 and up

MAIN MENU 0
CONTENTS 5
10 ENGINE 21
12 TESTING AND ADJUSTING 21
STANDARD VALUE TABLE 22
TOOL LIST FOR TESTING AND ADJUSTING 25
ADJUSTING VALVE CLEARANCE 26
FUEL INJECTION TIMING 27
MEASURING BLOW-BY PRESSURE 28
FAN BELT TENSION 29
MEASURING EXHAUST GAS COLOR 31
MEASURING ACCELERATOR PEDAL OPERATING FORCE AND OPERATING ANGLE 33
13 DISASSEMBLY AND ASSEMBLY 35
STARTING MOTOR ASSEMBLY 37
REMOVAL 37
INSTALLATION 37
ALTERNATOR ASSEMBLY 38
REMOVAL 38
INSTALLATION 38
WATER PUMP ASSEMBLY 39
REMOVAL 39
INSTALLATION 39
TURBOCHARGER ASSEMBLY 40
REMOVAL 40
INSTALLATION 40
CYLINDER HEAD ASSEMBLY 41
REMOVAL 41
INSTALLATION 42
RADIATOR ASSEMBLY 43
REMOVAL 43
INSTALLATION 46
ENGINE 48
REMOVAL 48
INSTALLATlON 54
FUEL TANK 60
REMOVAL 60
INSTALLATION 60
14 MAINTENANCE STANDARD 61
ENGINE MOUNT 62
20 POWER TRAIN 63
21 STRUCTURE AND FUNCTION 63
GENERAL 65
HYDRAULIC CIRCUIT FOR POWER TRAIN 67
HYDRAULIC CIRCUIT DIAGRAM FOR POWER TRAIN 68
DAMPER 69
TORQUE CONVERTER AND TRANSMISSION PIPING 70
TORQUE CONVERTER CHARGING PUMP 71
TORQUE CONVERTER 72
TORQUE CONVERTER OIL FILTER 75
TORQUE CONVERTER OIL COOLER 76
TORQUE CONVERTER RELIEF VALVE 77
TRANSMISSION 78
TRANSMISSION foldout # 1 79
TRANSMISSION CONTROL VALVE 86
UPPER VALVE 88
LOWER VALVE 89
TRANSMISSION SOLENOID VALVE 90
EMERGENCY MANUAL SPOOL 91
PRIORITY VALVE 94
MODULATING VALVE AND QUICK RETURN VALVE 95
ACCUMULATOR VALVE 98
PILOT REDUCING VALVE 100
TRANSMISSION PILOT FILTER 101
TRANSFER 102
DRIVE SHAFT 103
AXLE MOUNT 104
AXLE AND DIFFERENTIAL 106
TORQUE PROPORTIONING DIFFERENTIAL 111
FINAL DRIVE 112
TIRE AND WHEEL 113
22 TESTING AND ADJUSTING 115
STANDARD VALUE TABLE 116
TOOL LIST FOR TESTING AND ADJUSTING 117
MEASURING ENGINE STALL SPEED 118
MEASURING OIL PRESSURE OF TORQUE CONVERTER AND TRANSMISSION 120
MEASURING SHIFT LEVER 122
METHOD FOR OPERATION OF EMERGENCY MANUAL SPOOL 123
TIRE AND WHEEL 125
TROUBLESHOOTING 126
PRECAUTIONS WHEN TROUBLESHOOTING 127
METHOD OF READING TROUBLESHOOTING TABLES 129
PREVENTING RECURRENCE OF TROUBLE 131
JUDGMENT ON POWER TRAIN 132
TROUBLESHOOTING TABLE 134
Machine does not move 134
Machine lacks power or speed (all speed range) 136
Excessive time lag when starting machine or shifting gear 137
Torque converter oil temperature too high 138
23 DISASSEMBLY AND ASSEMBLY 139
DAMPER 141
REMOVAL 141
INSTALLATlON 141
DISASSEMBLY 142
ASSEMBLY 144
TORQUE CONVERTER CHARGING PUMP 148
REMOVAL 148
INSTALLATION 149
TORQUE CONVERTER AND TRANSMISSION 150
REMOVAL 150
INSTALLATION 159
TORQUE CONVERTER ASSEMBLY 169
DISASSEMBLY 169
ASSEMBLY 173
TRANSMISSION ASSEMBLY 179
DISASSEMBLY 179
DISASSEMBLY OF INPUT SHAFT, NO 1 CARRIER 187
DISASSEMBLY OF NO 3,4 CARRIER ASSEMBLY 189
DISASSEMBLY OF NO 2 CARRIER, NO 2 HOUSING 190
DISASSEMBLY OF NO 4,5 HOUSING ASSEMBLY 191
ASSEMBLY 192
ASSEMBLY OF NO 4,5 HOUSING ASSEMBLY 192
ASSEMBLY OF NO 2 CARRIER, NO 2 HOUSING 193
ASSEMBLY OF NO 3,4 CARRIER ASSEMBLY 194
ASSEMBLY OF INPUT SHAFT, NO 1 CARRIER 195
ASSEMBLY OF TRANSMISSION 197
TRANSFER ASSEMBLY 205
DISASSEMBLY 205
DISASSEMBLY OF OUTPUT SHAFT GEAR CASE 207
ASSEMBLY 208
ASSEMBLY OF OUTPUT SHAFT, GEAR CASE 208
TRANSMISSION CONTROL VALVE 213
REMOVAL 213
INSTALLATION 215
DISASSEMBLY AND ASSEMBLY 217
DISASSEMBLY AND ASSEMBLY OF TRANSMISSION CONTROL VALVE 217
DISASSEMBLY AND ASSEMBLY OF SPEED VALVE 218
DISASSEMBLY AND ASSEMBLY OF MODULATING VALVE 219
FRONT DIFFERENTIAL 221
REMOVAL 221
INSTALLATION 225
REAR DIFFERENTIAL 229
REMOVAL 229
INSTALLATION 233
DIFFERENTIAL 237
DISASSEMBLY 237
ASSEMBLY 240
FRONT AXLE 249
REMOVAL 249
INSTALLATION 252
REAR AXLE 255
REMOVAL 255
INSTALLATION 260
DRIVE SHAFT 265
DISASSEMBLY 265
ASSEMBLY 267
FINAL DRIVE 269
DISASSEMBLY 269
ASSEMBLY 272
24 MAINTENANCE STANDARD 277
TRANSMISSION MOUNT 278
TORQUE CONVERTER CHARGING PUMP 279
DAMPER 280
TORQUE CONVERTER 281
TORQFLOW TRANSMISSION 283
TRANSMISSION 283
TRANSMISSION CONTROL VALVE 286
UPPER VALVE 286
LOWER VALVE 288
SOLENOID VALVE 290
TRANSFER 291
DIFFERENTIAL 293
FINAL DRIVE 295
DRIVE SHAFT 296
AXLE MOUNT 297
40 STEERING SYSTEM 299
41 STRUCTURE AND FUNCTION 299
STEERING PIPING 300
HYDRAULIC CIRCUIT DIAGRAM FOR STEERING 301
STEERING VALVE 302
ORBIT-ROLL VALVE 303
STOP VALVE 304
STEERING PUMP 305
STEERING CYLINDER 306
STEERING COLUMN AND ORBIT-ROLL 307
CENTER HINGE PIN 308
42 TESTING AND ADJUSTING 309
STANDARD VALUE TABLE 310
TOOL LIST 310
MEASURING STEERING WHEEL PLAY 311
MEASURING OPERATING FORCE OF STEERING WHEEL 312
OPERATING TIME OF STEERING WHEEL 313
STEERING OIL PRESSURE 314
TROUBLESHOOTING TABLES 316
1 Steering wheel does not turn 317
2 Steering wheel is sluggish 318
3 Steering wheel moves unsteadily or is subject to large shock 319
4 Machine tends to turn naturally in one particular direction when traveling 319
5 Left and right turning radii are different 319
43 DISASSEMBLY AND ASSEMBLY 321
STEERING VALVE 322
REMOVAL 322
INSTALLATION 324
DISASSEMBLY 327
ASSEMBLY 330
STEERING DEMAND VALVE 335
REMOVAL 335
INSTALLATION 337
DISASSEMBLY 340
ASSEMBLY 344
STEERING PUMP 348
REMOVAL 348
INSTALLATION 349
STEERING CYLINDER 350
REMOVAL 350
INSTALLATION 351
DISASSEMBLY 352
ASSEMBLY 354
CENTER HINGE PIN 357
REMOVAL 357
INSTALLATION 366
44 MAINTENANCE STANDARD 377
STEERING COLUMN AND ORBIT-ROLL 378
STEERING PUMP 379
STEERING VALVE 380
STEERING CYLINDER MOUNT 381
STEERING CYLINDER 382
CENTER HINGE PIN 384
50 BRAKE AND AIR SYSTEM 387
51 STRUCTURE AND FUNCTION 387
GENERAL 388
BRAKE AND AIR PIPING 389
BRAKE AND AIR CIRCUIT SYSTEM 390
AIR TANK 391
SAFETY VALVE 393
BRAKE VALVE 394
BRAKE ACTUATED 395
OPERATING IN BALANCE 396
BRAKE RELEASED 397
AIR GOVERNOR 398
TWO-WAY VALVE 400
BRAKE CHAMBER 401
SLACK ADJUSTER 403
BRAKE 406
PARKING BRAKE 408
PARKING BRAKE SOLENOID VALVE 410
SPRING CYLINDER 411
BRAKE CALIPER 412
52 TESTING AND ADJUSTING 415
STANDARD VALUE TABLE 417
TOOL LIST 418
MEASURING BRAKE PEDAL 419
MEASURING AIR 420
BRAKE PERFORMANCE 423
CHECKING BRAKE OIL PRESSURE 424
MEASURING WEAR OF BRAKE DISC 425
AIR BLEEDING FROM BRAKE LINE 426
PARKING BRAKE PERFORMANCE 427
CHECKING AND ADJUSTING PARKING BRAKE 428
TROUBLESHOOTING 431
TROUBLESHOOTING TABLE 432
1 Air pressure does not rise at all 432
2 Air pressure does not rise to the specified range 433
3 Brake is ineffective or not very effective 434
4 Brake does not release, or drags 435
5 Parking brake does not release, or drags (Applies to machine equipped with air parking brake ) 436
53 DISASSEMBLY AND ASSEMBLY 437
AIR GOVERNOR 439
DISASSEMBLY 439
ASSEMBLY 440
BRAKE VALVE 441
REMOVAL 441
INSTALLATION 442
DISASSEMBLY 443
ASSEMBLY 445
BRAKE CHAMBER 447
REMOVAL 447
INSTALLATION 449
DISASSEMBLY 451
ASSEMBLY 454
SLACK ADJUSTER 457
REMOVAL 457
INSTALLATION 459
DISASSEMBLY 461
ASSEMBLY 462
BRAKE ASSEMBLY 463
DISASSEMBLY 463
ASSEMBLY 469
SPRING CYLINDER 477
REMOVAL 477
INSTALLATION 478
DISASSEMBLY 479
ASSEMBLY 481
PARKING BRAKE 483
REMOVAL 483
INSTALLATION 485
PARKING BRAKE PAD 488
REMOVAL 488
INSTALLATION 488
54 MAINTENANCE STANDARD 489
BRAKE VALVE 490
BRAKE CHAMBER 492
SLACK ADJUSTER 493
BRAKE 494
PARKING BRAKE 496
SPRING CYLINDER 498
60 WORK EQUIPMENT SYSTEM 501
61 STRUCTURE AND FUNCTION 501
GENERAL 502
HYDRAULIC PIPING 503
HYDRAULIC CIRCUIT DIAGRAM 504
HYDRAULIC TANK 506
OIL FILTER BYPASS VALVE 508
BREATHER 509
HYDRAULIC PUMPS 510
HYDRAULIC PUMP 510
SWITCH AND PPC PUMP 511
PPC VALVE 512
PPC RELIEF VALVE 514
FUNCTION OF PPC VALVE 515
MAIN CONTROL VALVE 517
RELIEF VALVE 523
SAFETY VALVE 524
SUCTION VALVE 525
FLOAT SELECTOR VALVE AND UNLOADER VALVE 526
ACCUMULATOR 528
HYDRAULIC CYLINDER 529
BUCKET LINKAGE 531
BUCKET POSITIONER AND BOOM KICK-OUT 533
WORK EQUIPMENT LEVER LINKAGE 535
62 TESTING AND ADJUSTING 537
STANDARD VALUE TABLE 539
TOOL LIST FOR TESTING AND ADJUSTING 541
MEASURING DUMP AND LEFT CONTROL LEVERS 542
ADJUSTING DUMP AND LIFT CONTROL LEVERS 543
MEASURING HYDRAULIC PRESSURE OF WORK EQUIPMENT 545
MEASURING WORK EQUIPMENT 548
MEASURING HYDRAULIC DRIFT OF WORK EQUIPMENT 549
ADJUSTING BUCKET POSITIONER 550
ADJUSTING BOOM KICK-OUT 551
TROUBLESHOOTING 552
TROUBLESHOOTING TABLE 552
1 Lift arm does not rise 552
2 Lift arm moves slowly or does not have sufficient lifting power 553
3 Lift arm movement becomes slow after it reaches a certain height 554
4 Bucket cannot be held down with lift arm cylinder 554
5 Lift arm has large hydraulic drift 554
6 Lift arm movement is unsteady during work 554
7 Lift arm descends momentarily when control lever is shifted from “Hold” to “Raise” 554
8 Bucket does not tilt beck 555
9 Bucket moves slowly or has insufficient tilt back power 556
10 Bucket movement becomes slow during tilt back 557
11 Bucket cannot be held down by the bucket cylinder 557
12 Bucket has large hydraulic drift 557
13 Bucket moves unsteadily when machine travels under load (Main control valve in “Hold”) 557
14 Bucket dumps momentarily when control lever is shifted from “Hold” to “Tilt back” 557
15 Control levers of lift arm and dump move stiffly and sluggishly 558
63 DISASSEMBLY AND ASSEMBLY 559
HYDRAULIC TANK 561
REMOVAL 561
INSTALLATION 565
HYDRAULIC PUMP 568
REMOVAL 568
INSTALLATION 569
HYDRAULIC FILTER 570
REMOVAL 570
INSTALLATION 570
SWITCH, PPC PUMP 571
REMOVAL 571
INSTALLATION 572
PPC VALVE 573
REMOVAL 573
INSTALLATION 575
DISASSEMBLY 577
ASSEMBLY 577
MAIN CONTROL VALVE 578
REMOVAL 578
INSTALLATION 581
DISASSEMBLY 584
ASSEMBLY 586
DUMP CYLINDER 588
REMOVAL 588
INSTALLATION 590
LIFT CYLINDER 591
REMOVAL 591
INSTALLATION 592
LIFT AND DUMP CYLINDERS 593
DISASSEMBLY 593
ASSEMBLY 595
WORK EQUIPMENT 598
REMOVAL 598
INSTALLATION 601
COUNTERWEIGHT 604
REMOVAL 604
INSTALLATION 604
64 MAINTENANCE STANDARD 605
MAIN CONTROL VALVE 606
SWITCH AND PPC PUMP 610
HYDRAULIC PUMP 612
PPC VALVE 614
DUMP CYLINDER 616
LIFT CYLINDER 618
BUCKET LINKAGE 620
BUCKET POSITIONER AND BOOM KICK-OUT 623
BUCKET 624
80 ELECTRIC AND ELECTRONIC SYSTEM 625
81 STRUCTURE AND FUNCTION 625
ELECTRICAL WIRING DIAGRAM 626
ENGINE STARTING CIRCUIT 627
ENGINE STOP CIRCUIT 629
COMBINATION SWITCH 630
ELECTRICALTRANSMISSION CONTROL 631
TRANSMISSION CUT-OFF SWITCH 631
TRANSMISSION CUT-OFF SELECTOR SWITCH 632
NEUTRALIZER RELAY 633
KICK-DOWN SWITCH 634
KICK-DOWN ELECTRIC CIRCUIT 635
ELECTRICAL PARKING BRAKE CONTROL 641
ELECTRONIC VEHICLE MONITORING SYSTEM (EVMS) 650
INDICATION ON MONITOR PANEL 652
SENSORS 655
WIRING HARNESS 663
OPERATION OF PROXIMITY SWITCH 664
82 TESTING AND ADJUSTING 669
STANDARD VALUE TABLE FOR ELECTRICAL SYSTEM 672
ADJUSTING MACHINE MONITOR (SPEEDOMETER MODULE) 675
TROUBLESHOOTING 677
CHECKS BEFORE TROUBLESHOOTING 678
METHOD OF USING YES-NO TROUBLESHOOTING FLOW CHART 679
CONNECTOR TERMINAL NUMBERS 681
PRECAUTION WHEN HANDLING CONNECTOR 687
ELECTRICAL WIRING DIAGRAM 689
ELECTRICAL CIRCUIT SYSTEM 691
TRANSMISSION CONTROL, PARKING CIRCUIT SYSTEM 692
ETHER INJECTION CIRCUIT SYSTEM 693
KICK-DOWN CIRCUIT SYSTEM 694
VEHICLE MONITOR SYSTEM 695
TROUBLESHOOTING CHART FOR ELECTRIC SYSTEM 697
POSITION OF CONNECTORS FOR TROUBLESHOOTING 698
E-1 ENGINE DOES NOT START 704
E-2 ENGINE DOES NOT STOP 706
E-3 ENGINE STOPS WHEN TRAVELING 706
E-4 PARKING BRAKE DOES NOT WORK 707
E-5 PARKING BRAKE IS APPLIED WHEN TRAVELING 708
E-6 PARKING BRAKE IS RELEASED WHEN STARTING SWITCH IS TURNED ON 710
E-7 WHEN PARKING BRAKE IS APPLIED SHIFT LEVER DOES 710
E-8 TRANSMISSION DOES NOT WORK NORMALLY 711
E-9 KICK-DOWN SWITCH DOES NOT WORK 732
E-10 KICK-DOWN ONLY WORKS WHEN KICK-DOWN SWITCH IS ON 735
E-11 KICK-DOWN OPERATION IS NOT CANCELED 736
E-12 KICK-DOWN WORKS BY MISTAKE WHEN TRAVELING IN F2 738
E-13 MACHINE DOES NOT TRAVEL WHEN KICK-DOWN SWITCH IS PRESSED 738
TROUBLESHOOTING TABLE (ELECTRONIC VEHICLE MONITORING SYSTEM) 740
TROUBLESHOOTING CHART FOR ELECTRONIC VEHICLE MONITORING SYSTEM 741
POSITION OF CONNECTORS FOR TROUBLESHOOTING 742
M-1 WHEN STARTING SWITCH IS TURNED TO ON POSITION, MONITOR PANEL DOES NOT LIGHT UP FOR 3 SECONDS 749
a) None of monitor panel lights up 749
b) Except for speedometer module, none of monitor panel lights up 749
c) None of CAUTION items light up 750
d) Some other parts do not light up 750
M-2 WHEN STARTING SWITCH IS TURNED TO ON POSITION, ALL MONITOR PANEL LIGHTS UP AND DOES NOT GO OUT 751
M-3 WHEN STARTING SWITCH IS TURNED TO ON POSITION (ENGINE STOPPED), CHECK ITEM FLASHES, (LEVELS OF CHECK ITEMS ARE CORRECT) 752
a) (Engine oil level) flashes 752
b) (Radiator water level) flashes 753
M-4 NO OPERATION IS BEING CARRIED OUT, BUT PILOT DISPLAY LIGHTS UP ABNORMALLY (SWITCH POSITIONS ARE NORMAL) 755
a) (Transmission cut-off) lights up 755
b) (Parking brake) lights up 756
c) (Working lamp) lights up 756
M-5 WHEN STARTING SWITCH IS TURNED TO ON POSITION (ENGINE STARTED), CHECK ITEM FLASHES 758
a) Engine oil pressure system 758
b) Alternator system 758
M-6 WHEN STARTING SWITCH IS TURNED TO ON POSITION (ENGINE STARTED), CHECK 759
a) Engine oil pressure system 759
b) Alternator system 759
M-7 WHEN STARTING SWITCH IS TURNED TO ON POSITION (ENGINE STARTED), CAUTION ITEM FLASHES (FLASHING ITEMS ARE SPECIFIED VALUE) 761
a) (Charge level) flashes 761
b) (Fuel level) flashes 761
c) (Brake line failure) flashes 761
d) (Engine oil pressure) flashes 761
e) (Radiator water level) flashes 761
f) (Air pressure) flashes 762
g) (Engine water temperature) flashes 762
h) (Torque converter oil temperature) flashes 762
M-8 SPEED SENSOR DISPLAY STAYS AT “0” 765
M-9 HIGH BEAM DOES NOT LIGHT UP, OR LIGHTS UP ABNORMALLY 766
a) If high beam does not light up 766
b) If high beam lights up when head lamp switch is OFF 766
c) If Hi beam display lights up when head lamp dimmer switch is at Lo beam position 767
M-10 TURN SIGNAL LAMP DOES NOT FLASH TURN SIGNAL LAMP STAYS ON OR DOES NOT STOP FLASHING 768
a) If turn signal lamp does not flash 768
b) If turn signal lamp stays ON or does not stop flashing 768
M-11 WHEN STARTING SWITCH IS TURNED TO ON POSITION (ENGINE STOPPED), BUZZER DOES NOT SOUND FOR 1 SEC CAUTION ITEM IS FLASHING BUT BUZZER DOES NOT SOUND + Cause Remedy 769
M-12 NO ABNORMALITY IS SHOWN ON MONITOR DISPLAY, BUT ALARM BUZZER SOUNDS 770
M-13 WHEN STARTING SWITCH IS TURNED TO ON POSITION (ENGINE STOPPED), WARNING LAMP DOES NOT LIGHT UP FOR 2 SEC CAUTION ITEM IS FLASHING BUT WARNING LAMP DOES NOT FLASH 771
M-14 NO ABNORMALITY IS SHOWN ON MONITOR DISPLAY, BUT WARNING LAMP LIGHTS UP 771
M-15 WHEN STARTING SWITCH IS TURNED TO ON IS ON, 772
a) None of panel lights up 772
b) Some of panel lamps do not light up 772
M-16 LAMP SWITCH IS NOT BEING OPERATED, BUT NIGHT LIGHTING LIGHTS UP NIGHT LIGHTING STAYS ON 773
M-17 SERVICE METER DOES NOT WORK 774
M-18 SERVICE METER MOVES WHEN ENGINE IS STOPPED 774
M-19 ABNORMALITY IN AIR PRESSURE GAUGE 775
a) If nothing is displayed in display area 775
b) If indicator remains at maximum level 775
M-20 ENGINE WATER TEMPERATURE GAUGE 776
a) If nothing is displayed in display area 776
b) If indicator remains at minimum level 776
M-21 ABNORMALITY IN TORQUE CONVERTER OIL TEMPERATURE GAUGE 777
a) If nothing is displayed in display area 777
b) If indicator remains at minimum level 777
M-22 ABNORMALITY IN FUEL GAUGE 778
a) If nothing is displayed in display area 778
b) If indicator remains at FULL 778
83 DISASSEMBLY AND ASSEMBLY 779
REMOVAL OF MACHINE MONITOR 780
INSTALLATION OF MACHINE MONITOR 780
90 OTHERS 781
91 LOGGING SPECIFICATIONS 781
STRUCTURE AND FUNCTION 782
HYDRAULIC CIRCUIT DIAGRAM 782
MAIN CONTROL VALVE 784
ARM CYLINDER 786
WORK EQUIPMENT 787
DISASSEMBLY AND ASSEMBLY 788
MAIN CONTROL VALVE 788
DISASSEMBLY 788
ASSEMBLY 790
MAINTENANCE STANDARD 792
MAIN CONTROL VALVE 792
WORK EQUIPMENT 794
ARM CYLINDER 797
93 DISASSEMBLY AND ASSEMBLY 799
REMOVAL OF CAB 800
INSTALLATION OF CAB 800
97 GEAR PUMP 801
GENERAL 802
PRINCIPLE OF OPERATION 803
PRESSURE LOADED TYPE GEAR PUMP 806
FIXED SIDE PLATE TYPE GEAR PUMP 808
SA SERIES 809
STRUCTURE 809
TESTING AND ADJUSTING 813
DISASSEMBLY 816
ASSEMBLY 820
MAINTENANCE STANDARD 825
99 METRIC CONVERSIONS 827

S.V 15/12/24