Name: Volvo A20C Articulated Dump Truck Repair Service Manual
SKU: 777520
Price: 47.00 USD
Availability: InStock

Table of Content A20C Service Information

GENERAL
- DESCRIPTION, COMPLETE MACHINE
  - General
- SPECIFICATIONS
  - - Volvo standard tightening torques
- STANDARD TIME
- TOOL
  - - Below are drawings of the E-tools that can be made in your own workshop.

STANDARD PARTS, SERVICE
- LUBRICANT; FUEL; OTHER FLUID
  - - Brake system, changing brake fluid
- SERVICE
  - General, common info about 171 – 179
    - Electric welding
  - Emergency measures

ENGINE WITH MOUNTING AND EQUIPMENT
- ENGINE
  - General, common info about 211 – 218
    - Compression check, engine at operating temperature
    - Specifications, general
  - Cylinder head
    - Specifications, tightening torques
  - Cylinder block with crankcase ventilation
  - Valve mechanism
    - Valves, adjusting
  - Engine transmission; camshaft
  - Crank shaft; connecting rod; vibration damper; fly wheel
  - Oil sump, dipstick incl.
  - Engine mounting
- LUBRICATING SYSTEM
  - General, common info about 221 – 224
  - Oil pump; line
    - Lubrication oil pressure, checking
- FUEL SYSTEM
  - General (common info about 233 – 238)
    - Low emission engines
  - Fuel pump; filter; strainer
    - Fuel feed pump, checking feed pressure
  - Fuel tank; fuel filling pump
    - Specifications, capacities
  - Injection pump; regulator; pump companion
    - Fuel injection pump, changing incl. setting injection timing
    - Idle speed, checking and adjusting
    - Injection angle TDC, checking and adjusting
    - Slow and fast idle speed, checking and adjusting with service display unit
    - Stall speed, checking with service display unit
  - Injector; delivery pipe
    - Injectors, changing all
  - Control system; control unit (for ex. injection timming adjuster)
    - Automatic timing adjuster, checking
    - Automatic timing adjuster (alpha adjuster)
- INLET SYSTEM; EXHAUST SYSTEM
  - Inlet manifold; exhaust manifold
  - Turbo charger
  - Air cleaner with connections; air pre-heater
- COOLING SYSTEM
  - General, common info about 261 – 269
  - Radiator, mounting and connections included
    - Coolant, changing
  - Fan; fan shroud; fan coupling
    - Hydraulic motor for fan or hydraulic pump, checking internal leakage
    - Radiator fan drive, checking function of motor
    - Radiator fan drive, general description
- ENGINE CONTROL
  - Revs control, foot operated
    - Throttle pedal, anti-throttle cylinder, adjusting

ELEC. SYSTEM; WARNING SYSTEM; INFORMATION SYSTEM; INSTRUMENTS
- - Comprehensive info, electrical system
- BATTERY; ENERGY STORAGE SYSTEM; MOUNTING PARTS
  - Battery
- ALTERNATOR; CHARGING; ELECTRIC MOTOR; ELECTRIC DRIVES
  - Alternator inclusive drive
  - Charging; converter
- STARTING SYSTEM
  - Starter motor inclusive solenoid
- LIGHTING
  - General, common info about 351 – 356
  - Lighting, front, including parking light and day running light
- CABLE; FUSE; RELAY
  - General, common info about 371 – 379
  - Cable; battery disconnector
  - Electrical distribution box; fuse box; junction box
- INSTRUMENT; SENSOR; WARNING AND INFORMATION SYSTEM
  - General, common info about 383 – 387
  - Speedometer; trip meter; hour counter
  - Sender, monitoring system
  - Warning/information unit, display unit

POWER TRANSMISSION
- - General, common info about 410 – 436
- CLUTCH; TORQUE CONVERTER
  - Hydrodynamic coupling, torque converter
- TRANSMISSION, HYDRAULIC CONTROL
  - - Hydraulic diagram, transmission without retarder
    - Transmission functions, checking instructions for connector X1/A1
    - Transmission PT1051 Ţ€“ cut-away drawing
    - Transmission PT1052, general description
    - Transmission, general troubleshooting
    - Troubleshooting outside the control unit in connector X1/A1
    - Wiring diagram, transmission electronics, circuit 37a-I
  - Transmission, hydraulic control
    - Diagnosis using error codes on service display unit
    - Gearshift selector, checking
    - Hydraulic transmission, checking oil pressure
    - Inductive sensor for output shaft, changing
    - Inductive sensor for turbine speed, changing
    - Oil cooler, changing
    - Seal for rear output shaft, changing
    - Solenoids, checking resistance
    - Transmission, removing and mounting (engine removed from machine)
    - Transmission, removing and mounting (together with engine)
- GEARBOX,
  - Distributing gearbox
    - Dropbox FL 650 D, general description
    - Dropbox, changing seal for rear output shaft
    - Dropbox, changing seal for front output shaft
    - Longitudinal differential lock, adjusting engagement
- PROPELLER SHAFT
  - General, common info about 451 – 453
  - Propeller shaft, complete
    - Intermediate propeller shaft and/or bearing, changing (in frame joint)
    - Propeller shaft between dropbox and frame joint, changing
    - Propeller shaft between transmission and dropbox, changing
    - Propeller shaft for rear bogie axle, changing
    - Propeller shaft, front output shaft on dropbox, changing
    - Propeller shaft for front bogie axle, changing
- FRONT AXLE; REAR AXLE
  - General, common info about 461 – 468
    - Dog clutch 66, checking and adjusting
    - Final drive 66 output shaft, changing seals and bearings
  - Front axle
    - Front axle assembly, removing
  - Differential lock, with control
    - Transverse differential lock, adjusting engagement (per axle)
- POWER TAKE OFF
  - Power take off
  - Power take off, between engine and gearbox (ART)
    - Flywheel housing (rear engine transmission) and power take-off
    - Power take-off in flywheel housing, reconditioning
    - Power take-off in flywheel housing, changing

BRAKE
- - Comprehensive info about brakes
- WHEEL BRAKE
  - General, common info about 511 – 519
    - Brake pads for service brake, checking
    - Specifications, weights
  - Front wheel brake, dry brake
    - Brake caliper, changing (per caliper)
    - Brake disc, changing
- HYDRAULIC BRAKE SYSTEM
  - General, common info about 520 – 522
    - Brake system, bleeding
  - Brake valve
- PARKING BRAKE
  - General, common info about 551 – 554
    - Parking brake caliper removed, reconditioning
    - Parking brake valve Ţ€“ hand-operated lever
    - Parking brake valve, reconditioning
    - Parking brake, changing brake caliper
    - Parking brake, changing brake disc
    - Parking brake, changing brake pads
    - Spring brake cylinder removed, reconditioning
  - Propeller shaft brake
- COMPRESSED-AIR BRAKE
  - General, common info about 561 – 565
    - Four-way pressure retaining valve, reconditioning (removed)
  - Compressor; regulator; anti-freez unit
    - Cut-out and cut-in pressures, checking and adjusting
  - Compressed-air tank, with mounting
  - Valves, compressed-air
- MISCELLANEOUS
  - General, common info about 591 – 594
    - Compressed air diagram A20C
    - Compressed air diagram A20C

STEERING
- - Comprehensive info, steering
- - General, common info about 641 – 647
    - Pressure accumulation, engine dependent pumps 1 and 2
  - Steering gear
    - Steering gear, checking and adjusting
    - Steering gear, changing
  - Steering arm; steering linkage; track rod
    - Steering linkage, changing roller bearings in rear lever
    - Steering linkage, changing roller bearing in front lever
    - Steering linkage, checking and adjusting
  - Hydraulic equipment
    - Damping cylinder, removing and mounting
    - Damping cylinder, changing seals
    - Damping cylinder, checking pre-load
    - Steering cylinder bearing, checking
    - Steering cylinder, changing spherical bearing
    - Steering cylinder, reconditioning in machine (left steering cylinder)
    - Steering valve removed, reconditioning
    - Steering valve, changing
    - Steering cylinder, changing
    - Steering system, checking and adjusting operating pressure
    - Steering valve neutral position and valve slide axial clearance, checking
  - Steering damper

FRAME; SPRINGS; DAMPING; AXLE SUSPENSION; WHEEL/TRACK UNIT
- FRAME
  - Frame, complete
    - Load unit frame, checking dimensions
- SUSPENSION
  - General, common info about 725 – 727
  - Hollow rubber spring, bump stop
    - Front rubber springs, changing all
- FRAME LINK
  - Bearings
    - Frame joint, checking and adjusting clearance
    - Frame joint, changing metallic bearing
    - Steering joint and frame joint
  - Frame link grader
    - Frame joint, changing hitch
    - Steering joint, changing spherical bearings
- AXLE SUSPENSION
  - Suspension, front axle
    - Front A-stay link bearing (rubber bearing), changing
  - Movable member system, front/rear
    - Front or rear bogie axle torsion bar, adjusting
    - Front axle, changing link bearing (rubber bearing)
  - Bogie suspension
    - Bogie beam, changing rubber springs
    - Torsion bar and/or link bearing, changing on load unit
    - Torsion bar, checking and adjusting
- WHEELS; TRACKS; TYRE; HUB; DRUM
  - Wheel

MACHINERY HOUSE; CAB; EXTERIOR TRIM PARTS ANYWHERE
- CAB, NAKED; CANOPY
- TRIM PART, OUTSIDE; GLASS; SEALING MOULDING
  - Glass; sealing moulding
    - Window pane, changing
- CAB INTERIOR/UPHOLSTERY
  - Driver’s seat, complete; instructor’s seat
    - Air spring for operatorŢ€™s seat, changing
    - OperatorŢ€™s seat, adjusting height of attachment
    - OperatorŢ€™s seat, mechanical suspension
- AIR CONDITIONING UNIT
  - Air distribution incl. air intake with filter
  - Heating unit
    - Heater, changing
  - Cooling unit
    - Filling refrigerant R134a

HYDRAULIC SYSTEM; DIGGING/ HANDLING/ GRADING EQUIPM.; MISC. EQUIP.
- WORKING HYDRAULICS; SERVO HYDRAULICS
  - General, common info about 911 – 917
    - Hydraulic system and component positions
    - Hydraulic system, bleeding air
  - Tank; line; oil cooling; filter; breather; filling pump
  - Working hydraulics
  - Pump, working hydraulics
    - Oil pump, changing ground-dependent pump
    - Oil pump, checking and adjusting hold (standby) pressure
- LOAD CARRIER
  - Hauler/platform body, incl. tipping cylinder; heating; tail gate
    - Installing piston rod seals
    - Load body position indicator, adjusting
    - Load body, adjusting against frame
    - Load body, changing tipping bearings
    - Tipping cylinder, changing
    - Tipping valve, changing
    - Tipping valve, changing cable
    - Tipping lever, adjusting
- - General, common info about 992 – 996

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Brand	Volvo
Model	A20C
Type	Articulated Dump Truck
Manuals	Repair Service Manual
Publication Numbers	Ref. No 330326 4125
Language	English
Format	PDF

Volvo A20C Articulated Dump Truck Repair Service Manual

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