Bobcat 337 341 Excavator Service Manual 6901080 (6-12) – PDF DOWNLOAD

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Bobcat 337 341 Excavator Service Manual 6901080 (6-12) – PDF DOWNLOAD

FILE DETAILS:

Bobcat 337 341 Excavator Service Manual 6901080 (6-12) – PDF DOWNLOAD

Language : English
Pages : 904
Downloadable : Yes
File Type : PDF
Size:29.3 MB

DESCRIPTION:

Bobcat 337 341 Excavator Service Manual 6901080 (6-12) – PDF DOWNLOAD

FOREWORD

This manual is for the Bobcat excavator mechanic. It provides necessary servicing and adjustment procedures for the Bobcat excavator and its component parts and systems. Refer to the Operation & Maintenance Manual for operating instructions, starting procedure, daily checks, etc.

SAFETY INSTRUCTIONS

Instructions are necessary before operating or servicing machine. Read and understand the Operation & Maintenance Manual, Operator’s Handbook and signs (decals) on machine. Follow warnings and instructions in the manuals when making repairs, adjustments or servicing. Check for correct function after adjustments, repairs or service. Untrained operators and failure to follow instructions can cause injury or death.

The following publications provide information on the safe use and maintenance of the Bobcat machine and attachments

TABLE OF CONTENTS:

Bobcat 337 341 Excavator Service Manual 6901080 (6-12) – PDF DOWNLOAD

MAINTENANCE SAFETY 3
ALPHABETICAL INDEX 5
CONTENTS 7
SAFETY INSTRUCTIONS 11
Fire Prevention 13
SERIAL NUMBER LOCATIONS 15
Hydraulic Excavator Serial Number 15
Engine Serial Number 15
DELIVERY REPORT 15
BOBCAT EXCAVATOR IDENTIFICATION 16
SAFETY AND MAINTENANCE 17
LIFTING AND BLOCKING THE EXCAVATOR 19
Procedure 19
LIFTING THE EXCAVATOR 21
3-Point Lift Procedure 21
OPERATOR CAB 23
Emergency Exit 23
Cab Door 23
TRANSPORTING THE EXCAVATOR 25
Procedure 25
TAILGATE (S/N 233311549 & BELOW, S/N 233211442 & BELOW) 27
Opening And Closing The Tailgate 27
Adjusting The Bumper 27
Adjusting The Latch 27
TAILGATE (S/N 233311550 ABOVE, S/N 233211443 & ABOVE) 29
Opening And Closing The Tailgate 29
Adjusting The Bumper 29
Adjusting The Striker 30
SERVICE SCHEDULE 31
AIR CLEANER SERVICE 33
Checking 33
Replacing The Filters 33
HEATER AIR FILTER 35
Fresh Air Filter 35
Recirculation Filter (Early Models Only) 35
COOLING SYSTEM 37
Cleaning The Cooling System 37
Checking Coolant Level 37
Replacing The Coolant (Early Models) 38
Replacing The Coolant (Later Models) 39
FUEL SYSTEM 41
Fuel Specifications 41
Filling The Fuel Tank 41
Removing Water From The Fuel Filter 42
Fuel Filter 42
Draining The Fuel Tank 43
Removing Air From The Fuel System 43
ENGINE LUBRICATION SYSTEM 45
Checking Engine Oil (Early Models) 45
Replacing Oil And Filter (Early Models) 45
Checking Engine Oil (Later Models) 47
Replacing Oil And Filter (Later Models) 47
HYDRAULIC SYSTEM 49
Checking And Adding Fluid (Early Models) 49
Checking And Adding Fluid (Later Models) 50
Replacing The Hydraulic Oil (Early Models) 51
Replacing The Hydraulic Oil (Later Models) 52
Replacing the Hydraulic Filter 53
Replacing the Case Drain Filter 53
Diagnostic Couplers 54
LUBRICATION OF THE EXCAVATOR 55
Procedure 55
TRAVEL MOTOR 57
Checking Oil Level 57
Draining The Travel Motor 57
SPARK ARRESTOR MUFFLER (IF EQUIPPED) 59
Servicing 59
HYDRAULIC SYSTEM 61
HYDRAULIC/HYDROSTATIC SCHEMATIC 67
HYDRAULIC SYSTEM INFORMATION 69
Troubleshooting Chart 69
Description 74
BOOM CYLINDER 77
Testing 77
Removal And Installation 79
Parts Identification 81
Disassembly 82
Assembly 86
ARM CYLINDER 91
Testing 91
Removal and Installation 92
Parts Identification 94
Disassembly 95
Assembly 98
BOOM SWING CYLINDER 101
Testing 101
Removal And Installation 102
Parts Identification 103
Disassembly 104
Assembly 107
BUCKET CYLINDER 111
Testing 111
Removal And Installation 113
Parts Identification 114
Disassembly 115
Assembly 118
BLADE CYLINDER 123
Testing 123
Removal And Installation 124
Parts Identification 125
Disassembly 126
Assembly 128
CLAMP CYLINDER 131
Testing 131
Removal And Installation 132
Parts Identification 133
Disassembly 134
Assembly 137
MAIN RELIEF VALVE 143
PORT RELIEF VALVES 145
Port Relief Valve Pressure Setting 145
Parts Identification 145
Adjustment Procedure 146
CROSSPORT RELIEF VALVE 147
Testing And Adjusting The Crossport Relief Valve 147
Removal And Installation 149
Disassembly And Assembly 151
PRESSURE REDUCING VALVE 157
Description 157
HYDRAULIC CONTROL VALVE ASSEMBLY 159
Removal And Installation 159
Control Valve Identification 162
Disassembly And Assembly 163
Swing Valve Section (Slew Valve Section) 164
Boom Offset Valve Section 172
Blade Valve Section 179
Bucket Valve Section 187
Arm Valve Section 192
Boom Valve Section 198
Auxiliary Valve Section 204
Right Side Travel Valve Section 212
Left Side Travel Valve Section 216
Inlet Section 220
HYDRAULIC PUMP 225
Hydraulic Pump Work Sheet 225
Pump Testing 228
Test Fitting Installation 228
Torque Limiter Adjustment 237
Removal And Installation 240
Coupler Removal And Installation 242
Torque Limiter Valve Parts Identification 243
Torque Limiter Valve Removal 244
Torque Limiter Valve Disassembly 244
Torque Limiter Valve Assembly 249
Initial Torque Limiter Valve Setting 252
Torque Limiter Valve Installation 254
Pump Control Parts Identification 255
Pump Control Removal And Installation 256
Pump Control Disassembly And Assembly 256
Parts Identification 262
Disassembly 263
Assembly 272
MANIFOLD ASSEMBLY/ACCUMULATOR 283
Description 283
Testing Pilot Pressure 283
Adjusting The Pilot Pressure 285
Removal And Installation 286
Manifold Assembly/Accumulator Parts Identification (S/N 233311636 & Below, S/N 233211536 & Below) 289
Disassembly And Assembly (S/N 233311636 & Below, S/N 233211536 & Below) 290
Manifold Assembly/Accumulator Parts Identification (S/N 233311637 & Above, S/N 233211537 & Above) 299
Disassembly And Assembly (S/N 233311637 & Above, S/N 233211537 & Above) 300
TRAVEL MOTOR 311
Checking Oil Level 311
Draining And Refilling 311
Removal And Installation 312
Parts Identification 313
Disassembly 314
Assembly 323
SWIVEL JOINT 335
Removal And Installation 335
Parts Identification 336
Disassembly 337
Assembly 338
SWING MOTOR 343
Removal And Installation 343
Disassembly 349
Inspection 354
Assembly 355
SWING MOTOR DRIVE CARRIER 361
Removal And Installation 361
Parts Identification 362
Checking The Drive Carrier Shaft End Play 363
Disassembly 364
Inspection 365
Assembly 366
CONTROL PATTERN SELECTOR VALVE 371
Removal And Installation 371
Disassembly 372
Assembly 373
RIGHT CONTROL LEVER (JOYSTICK) (S/N 233311869 & BELOW AND 233211877 & BELOW) 375
Testing 375
Handle Removal And Installation 376
Joystick Assembly Removal And Installation 380
Parts Identification 383
Disassembly And Assembly 384
LEFT CONTROL LEVER (JOYSTICK) (S/N 233311869 & BELOW AND 233211877 & BELOW) 389
Testing 389
Handle Removal And Installation 391
Joystick Assembly Removal And Installation 394
Parts Identification 397
Disassembly And Assembly 398
RIGHT CONTROL LEVER (JOYSTICK) (S/N 233311870 & ABOVE AND 233211878 & ABOVE) 403
Testing 403
Handle Removal And Installation 404
Joystick Assembly Removal And Installation 409
Parts Identification 411
Disassembly 412
Assembly 417
LEFT CONTROL LEVER (JOYSTICK) (S/N 233311870 & ABOVE AND 233211878 & ABOVE) 423
Testing 423
Handle Removal And Installation 425
Joystick Assembly Removal And Installation 428
Parts Identification 430
Disassembly 431
Assembly 436
TRAVEL CONTROL VALVE 441
Removal and Installation 441
Disassembly And Assembly 441
HYDRAULIC FILTER 447
Removal And Installation 447
HYDRAULIC FLUID RESERVOIR 449
Removal And Installation 449
OIL COOLER 451
Removal And Installation 451
DUAL SEQUENCE VALVE 453
Removal And Installation 453
Disassembly And Assembly 454
DIRECT TO TANK VALVE 457
Removal And Installation 457
Disassembly And Assembly 458
BUILD UP VALVE 461
Removal And Installation 461
Disassembly And Assembly 462
CASE DRAIN FILTER 465
Removal And Installation 465
REMOVING AIR FROM HYDRAULIC SYSTEM 467
Procedure 467
BOOM OFFSET LOCK VALVE 471
Description 471
Removal And Installation 471
Parts Identification 473
Disassembly 474
Assembly 476
UNDERCARRIAGE 481
BLADE 483
Removal And Installation 483
TRACKS 485
Track Lug Height 485
Rubber Track Clearance 486
Rubber Track Adjustment 487
Steel Track Clearance 488
Steel Track Adjustment 489
Rubber Track Removal And Installation 490
Steel Track Removal 492
Steel Track Installation 493
Track Shoe Removal And Installation 495
TRACK FRAME 497
Disassembly And Assembly 497
TRACK IDLER (RUBBER TRACK S/N 233311115 & BELOW AND 233211116 & BELOW, STEEL TRACK S/N 233311107 & BELOW AND 233211099 & BELOW) 501
Parts Identification 501
Disassembly 502
Assembly 504
TRACK IDLER (RUBBER TRACK S/N 233311116 & ABOVE AND 233211117 & ABOVE, STEEL TRACK S/N 233311108 & ABOVE AND 233211100 & ABOVE) 509
Parts Identification 509
Disassembly 510
Assembly 512
TRACK ROLLER (RUBBER TRACK S/N 233311115 & BELOW AND S/N 233211116 & BELOW, STEEL TRACK S/N 233311107 & BELOW AND 233211099 & BELOW) 515
Parts Identification 515
Disassembly 516
Assembly 518
TRACK ROLLER (RUBBER TRACK S/N 233311116 & ABOVE AND S/N 233211117 & ABOVE, STEEL TRACK S/N 233311108 & ABOVE AND 233211100 & ABOVE) 523
Parts Identification 523
Disassembly And Assembly 524
TRACK DAMAGE IDENTIFICATION 527
Cutting Of Steel Cords 527
Abrasion Of Embedded Metals 528
Separation Of Embedded Metals 529
Separation Of Embedded Metals Due To Corrosion 530
Cuts On The Lug Side Rubber 531
Cracks On The Lug Side Rubber Due To Fatigue 532
Lug Abrasion 533
Cracks And Cuts On The Lug Side Rubber 534
Abrasion Of The Track Roller Side 535
Cuts On The Edges Of Track Roller Side 536
SWING CIRCLE GEAR 537
Removal And Installation 537
Swing Bearing Removal 538
Swing Bearing Installation 539
UPPERSTRUCTURE & SWING SECTION 543
UPPERSTRUCTURE 547
Removal 547
Installation 550
ROPS CANOPY 553
Removal And Installation 553
CAB 557
Removal And Installation 557
Door Removal And Installation 560
Front Window Removal And Installation 561
Lower Front Window Removal And Installation 563
Right Side Rear Sliding Window Removal And Installation (Two Piece Side Window) 563
Right Side Front Sliding Window Removal And Installation (Two Piece Side Window) 564
Right Side Rear Sliding Window Removal And Installation (Three Piece Side Window) 565
Right Side Front Sliding Window Removal And Installation (Three Piece Side Window) 567
Right Side Panel And Window Assembly Removal And Installation 568
Door, Left Side, Rear & Upper Front Window Removal And Installation 571
SEAT AND SEAT MOUNT 573
Removal and Installation 573
RIGHT CONSOLE 575
Console Cover Removal And Installation 575
Console Base Removal And Installation 576
LEFT CONSOLE 581
Lower Console Cover Removal And Installation 581
Upper Console Cover Removal And Installation 583
Compression Spring Removal And Installation 584
Lock Lever Removal And Installation 586
Upper Console Removal And Installation 587
Console Switch Removal And Installation 589
Disassembly And Assembly 590
Console Base Removal And Installation 592
ENGINE SPEED CONTROL 595
Removal And Installation 595
BLADE CONTROL 597
Lever Removal And Installation 597
Linkage Removal And Installation 598
Linkage Bar Removal And Installation 600
Lower Linkage Removal And Installation 601
Lower Linkage Disassembly And Assembly 602
RIGHT PEDAL AND LINKAGE 605
Pedal Removal And Installation 605
Pedal Disassembly And Assembly 606
Lower Linkage Removal And Installation 608
Lower Linkage Disassembly And Assembly 609
Bellcrank Removal And Installation 609
TRAVEL CONTROLS 611
Removal And Installation 611
Disassembly And Assembly 612
Adjustment 614
CONTROL LINKAGE ASSEMBLY 617
Removal And Installation 617
FLOOR MAT AND FLOOR PANELS 619
Removal And Installation 619
FUEL TANK 621
Removal And Installation 621
HORN 623
Removal And Installation 623
SWING FRAME 625
Boom Swing Bracket Removal And Installation 625
Boom Swing Bracket Hose Installation 629
Swing Bracket Bushing Removal 630
Swing Bracket Bushing Installation 631
Boom Pivot Pin Bushing Removal (S/N 233311405 & Above And 233211373 & Above) 632
Boom Pivot Pin Bushing Installation (S/N 233311405 & Above And 233211373 & Above) 633
BOOM 635
Removal And Installation 635
Boom Pivot Pin Bushings Removal And Installation (S/N 233311405 & Above And 233211373 & Above) 636
ARM 637
Removal And Installation 637
BUCKET 639
Bucket Teeth Removal And Installation 639
TAILGATE 641
Removal And Installation 641
Release Rod Removal And Installation (S/N 233311549 & Below, S/N 233211442 & Below) 642
Latch Removal And Installation (S/N 233311549 & Below, S/N 233211442 & Below) 642
Latch Removal And Installation (S/N 233311550 & Above, S/N 233211443 & Above) 643
Striker Removal And Installation (S/N 233311550 & Above, S/N 233211443 & Above) 644
X-CHANGE™ 645
Removal And Installation 645
Parts Identification 647
Disassembly 648
Assembly 653
ELECTRICAL SYSTEM AND ANALYSIS 659
ELECTRICAL SCHEMATIC 661
ELECTRICAL SYSTEM INFORMATION 0
Description 666
Troubleshooting Chart 666
Fuse Location 667
Fuses 668
Electrical System Service 668
BATTERY 669
Using A Booster Battery (Jump Starting) 669
Removal And Installation 670
Servicing 672
ALTERNATOR 673
Checking The Belt Tension 673
Adjusting The Belt Tension 674
Removal And Installation 675
Alternator Identification 676
Charging System Check 677
Alternator Voltage Test 678
Low Voltage Test 678
High Voltage Test 679
Rectifier Continuity (Diode) Test 680
Alternator Regulator Test 681
Disassembly 681
Stator Continuity Test 682
Stator Ground Test 682
Rotor Continuity Test 682
Rotor Ground Test 682
Assembly 683
STARTER 685
Removal And Installation 685
Parts Identification 686
Disassembly 687
Inspection And Repair 692
Assembly 695
LIGHTS 701
Removal And Installation 701
Disassembly And Assembly 702
TWO SPEED SWITCH 703
Removal And Installation 703
FUEL LEVEL SENDER 705
Removal And Installation 705
Testing And Inspection 705
DIAGNOSTICS SERVICE CODE 707
Number Codes List 707
ENGINE SERVICE 709
TROUBLESHOOTING 711
Chart 711
MUFFLER 713
Removal And Installation 713
AIR CLEANER 715
Removal And Installation 715
RADIATOR (S/N 233311421 & BELOW, S/N 233211379 & BELOW) 717
Removal And Installation 717
RADIATOR (S/N 233311422 & ABOVE, S/N 233211380 & ABOVE) 719
Removal And Installation 719
ENGINE COMPONENTS AND TESTING 721
Engine Compression Checking 721
Glow Plugs Removal And Installation 722
Checking The Glow Plug 722
Fuel Shut-off Solenoid Adjustment 723
Fuel Shut-off Solenoid Removal And Installation 723
Fuel Injection Pump Check 724
Fuel Injection Pump Removal And Installation 724
Fuel Injector Nozzles Removal And Installation 727
Fuel Injector Nozzle Check 728
Valve Clearance Adjustment 729
ENGINE 731
Removal And Installation 731
FLYWHEEL AND HOUSING 737
Flywheel Removal And Installation 737
Flywheel Ring Gear 738
RECONDITIONING THE ENGINE 739
Cylinder Head Removal And Installation 739
Cylinder Head Disassembly And Assembly 740
Cylinder Head Servicing 741
Cylinder Head Top Clearance 741
Valve Guide, Checking 742
Valve And Valve Seat Reconditioning 743
Valve Spring, Checking 744
Rocker Arm And Shaft, Checking 745
Timing Gearcase Cover Removal And Installation 746
Idler Gear And Camshaft Removal And Installation 748
Camshaft, Servicing 749
Idler Gear And Shaft, Servicing 750
Timing Gears, Checking Backlash 751
Fuel Camshaft Removal And Installation 752
Fuel Camshaft Governor 752
Crankshaft Gear Removal And Installation 753
Oil Pump Removal And Installation 753
Oil Pump, Service 754
Checking Engine Oil Pressure 755
Relief Valve 755
Piston And Connecting Rod Removal And Installation 756
Piston And Connecting Rod, Servicing 757
Connecting Rod Alignment 760
Crankshaft And Bearings Removal And Installation 761
Crankshaft And Bearings, Servicing 762
Cylinder Bore, Checking 766
Water Pump Removal And Installation 767
Water Pump Disassembly And Assembly 767
Fan Removal And Installation 768
HEATING, VENTILATION, AIR CONDITIONING 769
HEATER COIL 771
Removal And Installation With A/C 771
Removal And Installation Without A/C 773
HEATER/AC FAN 775
Removal And Installation 775
Disassembly And Assembly 776
Resistor Removal and Installation 777
Wire Connector Removal and Installation 778
HEATER VALVE 781
Removal and Installation 781
AIR CONDITIONING SYSTEM FLOW 784
Principals 784
Chart 785
COMPONENTS 787
Identification 787
SAFETY 791
Safety Equipment 791
REGULAR MAINTENANCE 793
Filter Elements Removal And Installation 793
Compressor Drive Belt Inspection 794
Cleaning The Condenser 794
BASIC TROUBLESHOOTING 797
Poor A/C Performance 797
Cleaning The A/C Evaporator Coil & Heater Coil 798
Compressor Drive Belt Inspection 800
Checking The Electrical System 801
Engine Coolant By-Passing The Heater Valve 811
GENERAL AIR CONDITIONING SERVICE GUIDELINES 813
Compressor Oil 813
Compressor Oil Check 813
Component Replacement And Refrigeration Leaks 815
SYSTEM TROUBLESHOOTING CHART 817
Gauge Pressure Related Troubleshooting 818
TEMPERATURE/PRESSURE 821
Chart 821
AIR CONDITIONING SERVICE 823
Chart 823
SYSTEM CHARGING AND RECLAMATION 825
Reclamation Procedure 825
Charging Procedure With A Manifold Gauge Set 828
Charging Procedure 829
COMPRESSOR 833
Removal And Installation 833
Compressor Clutch Disassembly And Assembly 835
CONDENSER 839
Removal And Installation 839
RECEIVER/DRIER 841
Removal And Installation 841
PRESSURE RELIEF VALVE 843
Removal And Installation 843
PRESSURE SWITCH 845
Removal And Installation 845
EVAPORATOR/HEATER UNIT 847
Removal And Installation 847
Disassembly And Assembly 848
THERMOSTAT 851
Removal And Installation 851
EXPANSION VALVE 853
Removal And Installation 853
EVAPORATOR 855
Removal And Installation 855
SPECIFICATIONS 857
337 HYDRAULIC EXCAVATOR SPECIFICATIONS 859
Machine Dimensions 859
Lifting Capacity 860
Weights 860
Controls 860
Engine 860
Electrical 861
Hydraulic Systems 861
Swing System 861
Hydraulic Cylinders 861
Drive System 861
Brakes 862
Undercarriage 862
Track Shoes 862
Refill Capacities 862
Digging Force 862
341 HYDRAULIC EXCAVATOR SPECIFICATIONS 863
Machine Dimensions 863
Lifting Capacity 864
Weights 864
Controls 864
Engine 864
Electrical 865
Hydraulic Systems 865
Swing System 865
Hydraulic Cylinders 865
Drive System 865
Brakes 866
Undercarriage 866
Track Shoes 866
Refill Capacities 866
Digging Force 866
ENGINE SPECIFICATIONS 867
Fuel Injection Nozzles 867
Fuel Injection Pump 867
Cylinder Head 867
Valves 867
Valve Springs 868
Valve Timing 868
Rocker Arms 868
Camshaft 868
Tappet 868
Cylinders 869
Piston Rings 869
Pistons 869
Connecting Rods 869
Oil Pump 869
Crankshaft 870
Timing Gear 870
Thermostat 870
Engine Bolt Torque 871
Crankshaft Re-Grind Data 872
TORQUE SPECIFICATIONS 873
Torque for General SAE Bolts 873
Torque For General Metric Bolts 874
HYDRAULIC CONNECTION SPECIFICATIONS 875
O-ring Face Seal Connection 875
Straight Thread O-ring Fitting 875
Tubelines And Hoses 875
Flare Fitting 876
O-ring Flare Fitting 877
Port Seal Fitting 879
HYDRAULIC FLUID SPECIFICATIONS 881
Specifications 881
FUEL, COOLANT AND LUBRICANTS 883
Chart 883
CONVERSIONS 885
Decimal And Millimeter Equivalents 885
U S To Metric Conversion 885
SMR 887
337/341-1 887
337/341-2 889
337/341-3 891
337/341-4 893
337/341-5 895
337/341-6 897
337/341-7 899
337/341-8 901
337/341-9 903

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