Overview
Maintenance and repair information for this model is organized by system in the Volvo A30C Articulated Dump Truck Service Repair Manual. Its service groups address engine systems, power transmission, braking equipment, and steering components.
The contents also identify torque-converter components, hydraulic transmission controls, engine compression checks, fuel injection timing references, and dry-brake components.
Table of Contents
Volvo A30C Manual
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01. General
- Specifications — Product identification plates
- Standard Time
- Tool — Drawings of E-tools which can be made in your own workshop
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02. Standard Parts, Service
- Lubricant; Fuel; Other Fluid — Brake system, changing brake fluid
- Service — Maintenance — Electric welding
- Service — Emergency measures
- Service — Miscellaneous
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03. Engine with Mounting and Equipment
- General, engine installation and its function — Weights, (approx.)
- Engine — General, common info about 211 – 218 — Compression test, warm engine
- Engine — Valve mechanism — Valves, adjusting
- Lubricating System — General, common info about 221 – 224
- Fuel System — General (common info about 233 – 238) — Injection timing adjuster (angular advance mechanism)
- Fuel System — Fuel pump; filter; strainer — Fuel system, air bleeding
- Fuel System — Injection pump; regulator; pump companion — Injection angle (injection timing) B.T.D.C., checking and adjusting
- Fuel System — Injection pump; regulator; pump companion — Low and high idling speed, checking and adjusting using service dispaly unit
- Fuel System — Injector; delivery pipe
- Inlet System; Exhaust System — Exhaust brake — Description of function
- Inlet System; Exhaust System — Exhaust brake — Sensor exhaust retarder, adjusting
- Inlet System; Exhaust System — Exhaust brake — Sensor, exhaust retarder, replacing
- Cooling System — General, common info about 261 – 269
- Cooling System — Radiator, mounting and connections included — Coolant, changing
- Cooling System — Coolant pump; thermostat — Coolant pump removed, reconditioning
- Cooling System — Fan; fan shroud; fan coupling — Fan motor, changing piston rings
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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
- Starting System — Electric air pre-heater, excluding element
- Lighting, front, including parking light and day running light
- Lighting, rear
- Lighting, interior
- Lighting, extra, including working lighting
- Other Electrical Equipment — Direction indicator
- Cable; Fuse; Relay — General, common info about 371 – 379
- 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 — Speedometer; trip meter; hour counter
- Instrument; Sensor; Warning and Information System — Warning/information unit, display unit
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05. Power Transmission
- General, common info about 410 – 436 — Gearshifting control (serial No. 2901–, US 60001–)
- General, common info about 410 – 436 — Missing signal from both engine speed sensor (SE3) and travelling speed sensor (SE4)
- Clutch; Torque Converter — Hydrodynamic coupling, torque converter — Weights, approx.
- Transmission, hydraulic control — Checking modulator valves, retarder and lockup
- Transmission, hydraulic control — Checking main, torque converter and lubricating oil pressures
- Transmission, hydraulic control — Measuring resistance in SE3, SE4 and SE86
- Transmission, hydraulic control — Measuring resistance in sensor forretarder temperature (SE13)
- Transmission, hydraulic control — Measuring resistance in cable harness
- Transmission, hydraulic control — Multi-pin breaker box
- Transmission, hydraulic control — Seal for rear output shaft, replacing
- Transmission, hydraulic control — Transmission retarder valve, adjusting air pressure
- Transmission, hydraulic control — Transmission, installing – upward through doorway
- Transmission, hydraulic control — Transmission, removing – upward through doorway
- Transmission, hydraulic control — Turbine speed sensor, replacing
- Gearbox — Distributing gearbox — Differential lock, longitudinal, adjusting engagement
- Gearbox — Distributing gearbox — Dropbox, replacing seal for rear output shaft
- Gearbox — Distributing gearbox — Dropbox, removing
- Gearbox — Distributing gearbox — Dropbox, replacing seal for front output shaft
- Propeller shaft, complete — Propeller shaft between transmission and dropbox, replacing
- Propeller shaft, complete — Propeller shaft for rear bogie axle, replacing
- Propeller shaft, complete — Propeller shaft in steering joint, replacing
- Propeller shaft, complete — Propeller shaft, front output shaft on dropbox, replacing
- Propeller shaft, complete — Propeller shaft for front bogie axle, replacing
- Front Axle; Rear Axle — General, common info about 461 – 468
- Front Axle; Rear Axle — Front axle — Hub, replacing seals (one side)
- Front Axle; Rear Axle — Front axle, rear axle — Dog clutch 6×6, checking and adjusting
- Front Axle; Rear Axle — Differential lock, with control — Differential lock, transverse, adjusting engagement (per axle)
- Power take off
- Miscellaneous — General, common info about 491 – 492 — Transmission PT1663
- Miscellaneous — General, common info about 491 – 492 — Transmission, hydraulic diagram,
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06. Brake
- Comprehensive info about brakes
- Wheel Brake — General, common info about 511 – 519 — Brake pads for service brakes
- Wheel Brake — General, common info about 511 – 519 — Tightening torques
- Wheel Brake — Front wheel brake, dry brake — Brake discs, replacing (one wheel)
- Hydraulic Brake System — General, common info about 520 – 522 — Brake system, air bleeding
- Hydraulic Brake System — General, common info about 520 – 522 — Description (serial No. 2901–, US 60001–)
- Hydraulic Brake System — Brake valve
- Parking Brake — General, common info about 551 – 554 — Parking brake, replacing brake pads
- Parking Brake — General, common info about 551 – 554 — Parking brake, replacing brake disc
- Parking Brake — General, common info about 551 – 554 — Spring brake cylinder removed, reconditioning
- Parking Brake — Brake control, mechanical — Parking brake valve (Hand control)
- Compressed-air Brake — General, common info about 561 – 565
- Compressed-air Brake — Compressor; regulator; antifreeze unit — Cut-out and cut-in pressure, checking and adjusting
- Compressed-air Brake — Compressor; regulator; antifreeze unit — General repair instructions, compressor
- Compressed-air Brake — Compressed-air tank, with mounting — Safety valve, wet reservoir
- General, common info about 591 – 594 — Compressed-air system, item list (serial No. 2901–, US 60001 –)
- General, common info about 591 – 594 — Compressed-air system, item list (serial No. –2900 )
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07. Steering
- Comprehensive info, steering
- General, common info about 641 – 647
- Steering gear, replacing
- Steering gear, checking and adjusting
- Steering arm; steering linkage; track rod — Steering linkage, replacing roller bearing inbracket (serial No. 2274–)
- Steering arm; steering linkage; track rod — rear lever (serial No. 2274–)
- Steering arm; steering linkage; track rod — Steering linkage, replacing roller bearing infront lever (serial No. 2274–)
- Steering arm; steering linkage; track rod — Steering linkage, checking and adjusting
- Steering arm; steering linkage; track rod — Steering valve spool end float, checking and adjusting
- Hydraulic equipment — Steering cylinder, replacing (right side)
- Hydraulic equipment — Steering valve, removed, reconditioning
- Hydraulic equipment — Steering system, checking working pressure
- Steering damper — Damping cylinder, checking preload
- Steering damper — Damping cylinder, replacing seals
- Supplementary steering — Adjusting working pressure and stand-by pressure
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08. Frame; Springs; Damping; Axle Suspension; Wheel/track Unit
- Comprehensive info about frame and track unit/wheels
- Frame — General, common info about 711 – 718
- Suspension — General, common info about 725 – 727
- Suspension — Hollow rubber spring, bump stop — Removing and installing
- Frame Link — Bearings — Frame joint, checking and adjusting clearance
- Frame Link — Bearings — Frame joint, replacing bearings
- Frame link grader — Frame joint, replacing bushing
- Frame link grader — Steering joint, adjusting clearance
- Frame link grader — Steering joint, replacing bearings
- Axle Suspension — Suspension, front axle — Replacing link bearing (rubber bearing) front axle
- Axle Suspension — Bogie suspension — Bogie member, replacing rubber bearing, one side
- Axle Suspension — Bogie suspension — Cross stay link bearing (rubber bearing), replacing
- Axle Suspension — Bogie suspension — Front A-stay link bearing, (rubber bearing), replacing
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09. Machinery House; Cab; Exterior Trim Parts Anywhere
- Cab, Naked; Canopy
- Engine Hood; Mudguard; Foot Step — Engine hood with assembly parts
- Trim Part, Outside; Glass; Sealing Moulding — Glass; sealing moulding
- Cab Interior/upholstery — Driver’s seat, complete; instructor’s seat — If the back-rest is binding or has excessive play
- Cab Interior/upholstery — Driver’s seat, complete; instructor’s seat — Operator seat, height adjustment of attachment
- Air Conditioning Unit — General, common info about 872 – 877
- Air Conditioning Unit — Heating unit — Heat control valve, replacing
- Air Conditioning Unit — Heating unit — Heater radiator, replacing
- Air Conditioning Unit — Cooling unit — Air conditioning, checking function
- Air Conditioning Unit — Cooling unit — Air conditioning, description of function
- Air Conditioning Unit — Cooling unit — Refrigerant R134a, vacuum-pumping including filling
- Air Conditioning Unit — Cooling unit — Refrigerant, emptying
- Interior Equipment — General, common info about 881 – 884 — Protection against electromagnetic interference
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10. Hydraulic System; Digging/ Handling/ Grading Equipm.; Misc. Equip.
- Diagnosis using service display unit
- Tipping system, description
- Working Hydraulics; Servo Hydraulics — General, common info about 911 – 917
- Working Hydraulics; Servo Hydraulics — Pump, working hydraulics — Hydraulic pumps, for steering and tipping systems, checking internal leaks
- Working Hydraulics; Servo Hydraulics — Pump, working hydraulics — Oil pump, checking and adjusting stand-by pressure, pumps 1, 2 and 4
- Working Hydraulics; Servo Hydraulics — Pump, working hydraulics — Oil pump, ground-dependent, replacing
- Load Carrier — Hauler/platform body, incl. tipping cylinder; heating; tail gate
- General, common info about 992 – 996 — Hydraulic diagram, complete
Compressed-Air Parts Lists and Serial-Number Changes
The detailed reference points include “Compressed-air system, item list (serial No. –2900 )” and “Compressed-air system, item list (serial No. 2901–, US 60001 –)”.
Where similar entries are repeated, select the one carrying the appropriate serial qualifier. A range shown for one component should not be generalized to the complete manual.
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