Complete repair service manual with electrical wiring diagrams for Articulated Haulers A20C Volvo / A20C Volvo BM, with technical information to maintain, diagnose, repair, and service like professional mechanics.

Volvo Constructions Articulated Haulers A20C Volvo workshop service & repair manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.

Articulated Haulers A20C Volvo Service Repair Manual.PDF

PRODUCT DETAILS:
Pages: 1,092
File Format: PDF (Windows & Mac & Linux)
Language: English
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MAIN SECTIONS
0 - GENERAL
1 - STANDARD PARTS, SERVICE
2 - ENGINE WITH MOUNTING AND EQUIPMENT
3 - ELEC. SYSTEM; WARNING SYSTEM; INFORMATION SYSTEM; INSTRUMENTS
4 - POWER TRANSMISSION
5 - BRAKE
6 - STEERING
7 - FRAME; SPRINGS; DAMPING; AXLE SUSPENSION; WHEEL_TRACK UNIT
8 - MACHINERY HOUSE; CAB; EXTERIOR TRIM PARTS ANYWHERE
9 - HYDRAULIC SYSTEM; DIGGING_HANDLING_GRADING EQUIPM.; MISC EQUIPM

TABLE OF CONTENTS
0 - Foreword......1
0 - GENERAL......2
  00 - DESCRIPTION; COMPLETE MACHINE......3
    Description......3
    Product identification plates......4
  03 - SPECIFICATIONS......6
    Brakes......6
    Capacities......8
    Dimensions......9
    Electrical system......11
    Engine......14
    Hydraulic system......17
    Power transmission-[4410]......19
    Specifications, change intervals......22
    Steering system......23
    Tightening torques......24
    Volvo standard tightening torques......34
    Weights......36
  07 - STANDARD TIME......38
    Time Guide......38
  08 - TOOL......47
    Recycling station FRS-10GS......47
    Special tools for the drivetrain......49
1 - STANDARD PARTS, SERVICE......53
  16 - LUBRICANT; FUEL; OTHER FLUID......54
    Brake system, changing brake fluid......54
    Recommended lubricants......56
  17 - SERVICE......58
    Cleanliness, hydraulic systems......58
    Electric welding......59
    Repairs of hydraulic systems......60
    Towing......61
2 - ENGINE WITH MOUNTING AND EQUIPMENT......63
  21 - ENGINE......64
    Compression check, engine at operating temperature......64
    Description-......67
    Engine and transmission, mounting......68
    Engine and transmission, removing......72
    Engine, mounting......81
    Engine, removing......85
    Specifications, capacities-[3020]......93
    Specifications, general-[2652]......94
    Specifications, general-[2853]......95
    Specifications, tightening torques-[2409]......96
    Specifications, tightening torques-[2441]......98
    Specifications, tightening torques-[2512]......99
    Specifications, tightening torques-[2543]......100
    Specifications, tightening torques-[2718]......101
    Specifications, weights-[2919]......102
    Valves, adjusting......103
  22 - LUBRICATING SYSTEM......105
    Lubrication oil pressure, checking......105
    Specifications, general-[2217]......107
    Specifications, general-[2318]......108
  23 - FUEL SYSTEM......109
    Automatic timing adjuster (alpha adjuster)......109
    Automatic timing adjuster, checking......110
    Fuel feed pump, checking feed pressure......116
    Fuel system, bleeding......118
    Idle speed, checking and adjusting......120
    Injection angle TDC, checking and adjusting......122
    Injection angle, checking......127
    Injectors, changing all......131
    Low emission engines......135
    Slow and fast idle speed, checking and......137
    Specifications, capacities-[1912]......140
    Specifications, general-[1219]......141
    Specifications, general-[1456]......142
    Specifications, general-[1943]......143
    Specifications, tightening torques-[1246]......144
    Specifications, tightening torques-[1523]......145
    Stall speed, checking with service display unit......146
    Stall speed, checking......148
  25 - INLET & EXHAUST SYSTEM......149
    Specifications, general-[0722]......149
    Specifications, general-[0754]......150
    Specifications, tightening torques-[0825]......151
  26 - COOLING SYSTEM......152
    Coolant filter, changing......152
    Coolant, changing......154
    Description-[0646]......157
    Fan motor, changing piston rings......162
    Hydraulic motor for fan or......168
    Radiator fan drive, checking function of motor......170
    Radiator fan drive, general description......172
    Radiator fan motor, adjusting speed......174
    Radiator, changing......176
    Specifications, capacities-[0605]......178
    Specifications, general-[0008]......179
    Specifications, general-[0538]......181
    Thermostat valve (removed), reconditioning......182
    Thermostat valve, checking function......184
    Thermostat valve, description......185
  27 - ENGINE CONTROL......186
    Throttle pedal, anti-throttle cylinder, adjusting......186
3 - ELECTRICAL; WARNING; INFORMATION; INSTRUMENTS......188
  30 - GENERAL......189
    Description-[5730]......189
    Electrical symbols......190
    Fuses......194
    Special instructions for servicing the electrical system......208
  31 - BATTERY......209
    Charging of batteries......209
    Specifications, general-[5437]......210
  32 - ALTERNATOR; CHARGE REGULATOR......211
    Alternator, changing......211
    Charging, checking in machine (multimeter)......213
    Specifications, general-[5212]......217
    Specifications, general-[5243]......218
  33 - STARTING SYSTEM......219
    Specifications, general-[5136]......219
    Starter motor, changing......220
  35 - LIGHTING......223
    Headlight assembly, changing 1 headlight incl. adjusting alignment......223
    Headlights, adjusting against wall or wing......224
    Specifications, general-[5011]......225
  37 - CABLE; FUSE; RELAY......226
    Additional fuses (serial no. 3101–)......226
    Additional fuses (serial no. –3100)......228
    Circuit 14–36 (cont'd.) (serial no. 3101–)......230
    Circuit 14–36 (cont'd.) (serial no. –3100)......234
    Circuit 14–36 (serial no. 3101–)......238
    Circuit 14–36 (serial no. –3100)......242
    Circuit 37a–37e (serial no. 3101–)......246
    Circuit 37a–37e (serial no. –3100)......250
    Circuit 37f–37I (serial no. 3101–)......254
    Circuit 37f–37I (serial no. –3100)......258
    Circuit 38–53A (serial no. 3101–)......262
    Circuit 38–53A (serial no. –3100)......266
    Circuit 53B–75 (contd.) (serial no. –3100)......270
    Circuit 53B–75 (serial no. 3101–)......273
    Circuit 53B–75 (serial no. –3100)......277
    Circuit 66 and 77 (serial no. 3101–)......281
    Circuit 66 and 77 (serial no. –3100)......285
    Circuit 76–89 (serial no. 3101–)......288
    Circuit 76–89 (serial no. –3100)......292
    Circuit 7–13 (serial no. 3101–)......296
    Circuit 7–13 (serial no. –3100)......300
    Circuit 90–91 (serial no. –3100)......304
    Circuit 90–93 (serial no. 3101–)......307
    Circuit 94 and 98 (serial no. 3101–)......310
    Circuit board, right electrical distribution box (serial no. 3101–)......314
    Circuit board, right electrical distribution box (serial no. –3100)......315
    Circuit index......316
    Code legend for connectors-[3310]......319
    Code legend for connectors......385
    Codes in wiring diagrams......455
    Explanations of wiring diagrams......456
    Fuses, left electrical distribution box (serial no. 3101–)......458
    Fuses, left electrical distribution box (serial no. –3100)......459
    Fuses, right electrical distribution box (serial no. 3101–)......460
    Fuses, right electrical distribution box (serial no. –3100)......463
    Instrument panel, (serial no. 3101–)......466
    Instrument panel, (serial no. –3100......468
    Relays, left electrical distribution box (serial no. 3101–)......470
    Relays, left electrical distribution box (serial no. –3100)......472
    Relays, right electrical distribution box (serial no. 3101–)......474
    Relays, right electrical distribution box (serial no. –3100)......477
    Specifications, general-[1607]......479
    Template for pin numbers connector X1_A1......480
    Wiring diagrams, Circuit 0–6 (serial no. –3100)......482
    Wiring diagrams......484
  38 - INSTRUMENT; SENSOR; WARNING & INFORMATION SYSTEM......487
    Connection......487
    Contronic Information Display Unit......488
    Contronic service display unit......490
    ECU, reading off with measuring instrument......492
    Information display unit, displays......494
    Information display unit, summary......499
    Information on the service display unit-[0634]......500
    Information on the service display unit......511
    Load sensor, adjusting......520
    Load sensor, checking electric circuits-[1133]......522
    Load sensor, checking electric circuits......525
    Measuring instrument, summary......527
    Service display unit, summary......528
    Specifications, general-[1031]......529
    Specifications, general-[1531]......530
    Speedometer, electric, calibrating......531
    Speedometer, electronic (serial no. 3066 –31498)......532
    Speedometer, electronic programming instructions......534
    Speedometer, electronic......539
    Using the service display unit......543
4 - POWER TRANSMISSION......544
  40 - GENERAL......545
  41 - CLUTCH; TORQUE CONVERTER......547
  42 - TRANSMISSION; HYDRAULIC CONTROL......548
  43 - GEARBOX......622
  45 - PROPELLER SHAFT......648
  46 - FRONT AXLE; REAR AXLE......668
  48 - POWER TAKE OFF......705
5 - BRAKE......719
  50 - GENERAL......720
    Description-[2706]......720
    Specifications, general-[2634]......722
  51 - WHEEL BRAKE......723
    Brake caliper, changing (per caliper)......723
    Brake caliper, reconditioning......727
    Brake disc for service brake, checking......730
    Brake disc, changing......732
    Brake pads for service brake, checking......746
    Brake pads, changing (one wheel)......748
    Specifications, tightening torques-[2500]......754
    Specifications, weights-[2435]......755
  52 - HYDRAULIC BRAKE SYSTEM......756
    Brake system, bleeding......756
    Description-[2057]......759
    Foot-brake valve......762
    Specifications, capacities-[2024]......768
  55 - PARKING BRAKE......769
    Parking brake caliper removed, reconditioning......769
    Parking brake valve – hand-operated lever......771
    Parking brake valve, reconditioning......775
    Parking brake, changing brake caliper......779
    Parking brake, changing brake disc......783
    Parking brake, changing brake pads......786
    Parking brake......789
    Specifications, general-[1407]......790
    Specifications, general-[1530]......791
    Specifications, tightening torques-[1602]......792
    Spring brake cylinder removed, reconditioning......793
    Spring brake cylinder, changing......796
  56 - COMPRESSED-AIR BRAKE......798
    Air compressor......798
    Air-hydraulic unit......799
    Anti-freeze reservoir......800
    Automatic adjustment lever......802
    Compressor, changing......804
    Cut-out and cut-in pressures, checking and adjusting......807
    Foot-brake valve, reconditioning (removed)......809
    Four-way pressure retaining valve, reconditioning (removed)......813
    Four-way pressure retaining valve......815
    Pressure regulator repairs (removed)......819
    Pressure regulator......821
    Relay valve, reconditioning......823
    Relay valve......825
    Safety valve, wet tank......828
    Specifications, capacities-[0634]......829
    Specifications, capacities-[0819]......830
    Specifications, general-[0359]......831
    Specifications, general-[0609]......832
    Specifications, general-[0728]......833
    Specifications, general-[1151]......834
    Specifications, tightening torques-[0753]......835
    Spring brake cylinder......836
  59 - MISCELLANEOUS......838
    Compressed air diagram A20C (serial no. -3101) - Image......838
    Compressed air diagram A20C (serial no. 3101-) - Image......839
    Compressed air diagram A20C-[0328]......840
    Compressed air diagram A20C......842
6 - STEERING......845
  60 - GENERAL......846
    Description, steering system......846
    Specifications, general-[0148]......849
  64 - STEERING......850
    Damping cylinder, changing seals......850
    Damping cylinder, checking pre-load......853
    Damping cylinder, removing and mounting......855
    Damping cylinder......857
    Pressure accumulation, engine dependent pumps 1 and 2......858
    Specifications, general-[0038]......861
    Specifications, general-[4930]......862
    Specifications, general-[5450]......863
    Specifications, weights-[5516]......864
    Steering cylinder bearing, checking......865
    Steering cylinder, changing spherical bearing......867
    Steering cylinder, changing......869
    Steering cylinder, reconditioning in machine......872
    Steering cylinder......876
    Steering gear, changing......877
    Steering gear, checking and adjusting......881
    Steering linkage, changing roller bearing in front lever......884
    Steering linkage, changing roller bearings in rear lever......895
    Steering linkage, checking and adjusting......901
    Steering system, checking and adjusting operating pressure......904
    Steering valve neutral position and valve slide......906
    Steering valve removed, reconditioning......909
    Steering valve, changing......914
    Steering valve......918
7 - FRAME; SPRINGS; DAMPING; AXLE SUSPENSION; WHEEL_TRACK UNIT......921
  71 - FRAME......922
    Description-[4849]......922
    Load unit frame, checking dimensions......924
    Specifications, tightening torques-[4747]......926
    Specifications, weights-[4707]......928
  72 - SUSPENSION......929
    Front rubber springs, changing all......929
    Suspension......933
  74 - FRAME LINK......934
    Frame joint, changing hitch......934
    Frame joint, changing metallic bearing......936
    Frame joint, checking and adjusting clearance......943
    Frame joint, separating and assembling......946
    Specifications, tightening torques......952
    Specifications, weights-[4318]......953
    Steering joint and frame joint......954
    Steering joint, changing spherical bearings......956
    Steering joint, checking clearance......967
  75 - AXLE SUSPENSION......969
    Bogie beam, changing rubber bearing (one side)......969
    Bogie beam, changing rubber springs......973
    Front A-stay link bearing (rubber bearing), changing......975
    Front axle, changing link bearing (rubber bearing)......979
    Front or rear bogie axle torsion bar, adjusting......983
    Rear A-stay link bearing (rubber bearing), changing......984
    Specifications, weights-[3719]......989
    Torsion bar and_or link bearing, changing on load unit......990
    Torsion bar, checking and adjusting......992
  77 - WHEELS; TRACKS; TYRE; HUB; DRUM......996
    Specifications, weights-[3548]......996
8 - MACHINERY HOUSE; CAB; EXTERIOR TRIM PARTS ANYWHERE......997
  81 - CAB, NAKED; CANOPY......998
    Specifications, weights-[3508]......998
  84 - TRIM PART; OUTSIDE; GLASS; SEALING MOULDING......999
    Window pane, changing......999
  85 - CAB INTERIOR; UPHOLSTERY......1001
    Air spring for operator’s seat, changing......1001
    Maintenance instructions......1003
    Operator’s seat, adjusting height of attachment......1004
    Operator’s seat, air suspension......1005
    Operator’s seat, mechanical suspension......1006
  87 - AIR CONDITIONING UNIT......1007
    Air conditioning, checking function......1007
    Fan motor, changing......1008
    Filling refrigerant R134a......1011
    Functional description......1015
    Heat control valve, changing......1017
    Heater, changing......1019
    Protection against electromagnetic interference......1021
    Refrigerant R134a, draining......1023
    Specifications, general-[3143]......1026
9 - HYDRAULIC SYSTEM; DIGGING_HANDLING_GRADING EQUIPMENT; MISCELLANEOUS......1027
  90 - GENERAL......1028
    Description......1028
    Test outlet on hydraulic system......1029
  91 - WORKING HYDRAULIC; SERVO HYDRAULICS......1031
    Hydraulic pumps, functional description......1031
    Hydraulic system and component positions-[2546]......1040
    Hydraulic system and component positions-[2604]......1042
    Hydraulic system and component positions......1044
    Hydraulic system, bleeding air......1046
    Internal leakage, checking......1047
    Oil pump, changing ground-dependent pump......1049
    Oil pump, checking and adjusting hold (standby) pressure......1051
    Specifications, capacities-[2313]......1054
    Specifications, capacities-[2430]......1055
    Specifications, capacities......1056
    Specifications, general-[1912]......1057
    Specifications, general-[2149]......1058
    Specifications, general-[2232]......1059
    Specifications, general-[2405]......1060
    Troubleshooting charts-[2339]......1061
    Troubleshooting charts......1062
  95 - LOAD CARRIER......1063
    Installing piston rod seals......1063
    Load body position indicator, adjusting......1065
    Load body, adjusting against frame......1066
    Load body, changing tipping bearings......1067
    Specifications, general......1074
    Specifications, weights......1075
    Tipping cylinder, changing......1076
    Tipping lever, adjusting......1080
    Tipping limitation, adjusting......1081
    Tipping system, description......1084
    Tipping valve, changing cable......1085
    Tipping valve, changing......1087
  99 - MISCELLANEOUS......1090
    Hydraulic diagram A20C 6x6 - Image......1090
    Hydraulic diagram A20C 6x6......1091

Articulated Haulers A20C Volvo, A20C Volvo BM Service Repair Manual