Overview
The Volvo A20C BM Articulated Dump Truck Service Repair Manual is a system-by-system reference for maintenance, inspection and repair work. The contents bring together power transmission, braking equipment, steering components, and working and servo hydraulics.
Component-level coverage extends to propeller-shaft assemblies, torque-converter components, dry-brake components, compressed-air braking, and cooling-system components.
Table of Contents
Volvo A20C BM Manual
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01. General
- Specifications — Product Identification Numbers (PIN) and serial number locations (type plates)
- Standard Time
- Tool
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02. Standard Parts, Service
- Lubricant; Fuel; Other Fluid
- Service — General, common info about 171 – 179
- Safety equipment, without own function group — When the service has been completed, or if the machine is laid up for a longer period
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03. Engine with Mounting and Equipment
- General, engine installation and its function
- Engine — General, common info about 211 – 218
- Engine — Cylinder head
- Engine — Cylinder block with crankcase ventilation
- Engine — Cylinder liner; piston
- Engine — Valve mechanism
- Engine transmission; camshaft
- Engine — Crank shaft; connecting rod; vibration damper; fly wheel
- Engine — Oil sump, dipstick incl.
- Engine mounting
- Lubricating System — General, common info about 221 – 224
- Lubricating System — Oil pump; line
- Lubricating System — Oil filter; filter housing
- Fuel System — General (common info about 233 – 238)
- Fuel System — Fuel pump; filter; strainer
- Fuel System — Fuel tank; fuel filling pump
- Fuel System — Injection pump; regulator; pump companion
- Fuel System — Injector; delivery pipe
- Inlet System; Exhaust System — Inlet manifold; exhaust manifold
- Inlet System; Exhaust System — Turbo charger
- Inlet System; Exhaust System — Air cleaner with connections; air pre-heater
- Inlet System; Exhaust System — Charge air cooler with connections
- Cooling System — General, common info about 261 – 269
- Cooling System — Radiator, mounting and connections included
- Cooling System — Coolant pump; thermostat
- Cooling System — Fan; fan shroud; fan coupling
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04. 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
- Alternator; Charging; Electric Motor; Electric Drives — Charging; converter
- Starting System — Starter motor inclusive solenoid
- Lighting — General, common info about 351 – 356
- Lighting — Bulbs
- Lighting, front, including parking light and day running light
- Other Electrical Equipment — General, common info about 361 – 367
- Other Electrical Equipment — Switch; connector
- Other Electrical Equipment — Electronic standard components
- Cable; Fuse; Relay — Electrical distribution box; fuse box; junction box
- Instrument; Sensor; Warning and Information System — General, common info about 383 – 387
- Instrument; Sensor; Warning and Information System — Sender, monitoring system
- Instrument; Sensor; Warning and Information System — Warning/information unit, display unit
- Miscellaneous — General, common info about 393 – 395
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05. Power Transmission
- General, common info about 410 – 436
- Clutch; Torque Converter — Hydrodynamic coupling, torque converter
- Transmission, hydraulic control
- Gearbox — Distributing gearbox
- Hydrostatic Drive — General, common info about 441 – 443
- Propeller shaft, complete
- Front Axle; Rear Axle — General, common info about 461 – 468
- Front Axle; Rear Axle — Front axle
- Front Axle; Rear Axle — Rear axle 1
- Front Axle; Rear Axle — Rear axle 2 — Transverse differential lock for front axle and front and rear bogie axles, checking and adjusting
- Power take off
- Power take off, between engine and gearbox (ART)
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06. Brake
- Comprehensive info about brakes
- Wheel Brake — General, common info about 511 – 519
- Wheel Brake — Front wheel brake, dry brake
- Hydraulic Brake System — General, common info about 520 – 522
- Parking Brake — General, common info about 551 – 554
- Parking Brake — Brake control, mechanical
- Parking Brake — Propeller shaft brake
- Compressed-air Brake — General, common info about 561 – 565
- Compressed-air Brake — Compressor; regulator; antifreeze unit
- Compressed-air Brake — Compressed-air tank, with mounting
- Compressed-air Brake — Valves, compressed-air
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07. Steering
- Comprehensive info, steering
- General, common info about 641 – 647
- Steering gear
- Steering arm; steering linkage; track rod
- Hydraulic equipment — Steering system, checking and adjusting operating pressure (Pump 1 and 2)
- Hydraulic equipment — Steering valve neutral position and valve slide (spool) axial clearance, checking
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08. Frame; Springs; Damping; Axle Suspension; Wheel/track Unit
- Frame — General, common info about 711 – 718
- Frame, complete
- Frame components
- Suspension — Hollow rubber spring, bump stop
- Frame Link — General, frame link complete
- Frame Link — Bearings
- Frame link grader
- Axle Suspension — Movable member system, front/rear
- Axle Suspension — Bogie suspension
- Wheels; Tracks; Tyre; Hub; Drum — Wheel
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09. Machinery House; Cab; Exterior Trim Parts Anywhere
- Cab, Naked; Canopy
- Trim Part, Outside; Glass; Sealing Moulding — Glass; sealing moulding
- Cab Interior/upholstery — Driver’s seat, complete; instructor’s seat
- Air Conditioning Unit — General, common info about 872 – 877
- Air Conditioning Unit — Heating unit
- Interior Equipment — General, common info about 881 – 884
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10. Hydraulic System; Digging/ Handling/ Grading Equipm.; Misc. Equip.
- Working Hydraulics; Servo Hydraulics — Tank; line; oil cooling; filter; breather; filling pump
- Working Hydraulics; Servo Hydraulics — Working hydraulics
- Working Hydraulics; Servo Hydraulics — Pump, working hydraulics
- Working Hydraulics; Servo Hydraulics — Other hydraulic equipment
- Load Carrier — Hauler/platform body, incl. tipping cylinder; heating; tail gate
Tipping Body, Tailgate and Working Hydraulic Circuit
Use the entries “Hauler/platform body, incl. tipping cylinder; heating; tail gate” to locate the named component information.
Keep load-carrier component references separate from the pump, reservoir and filtration entries when identifying the part being serviced.
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