Overview
The Volvo L20H Compact Wheel Loader Service Repair Manual provides a workshop reference for maintaining, diagnosing and repairing the documented machine systems. The indexed systems include braking equipment, steering components, working and servo hydraulics, and electrical and instrument systems.
More specific subjects include hydraulic transmission controls, working-hydraulics pumps, hydraulic tanks, filters and oil-cooling equipment, fuel injectors and delivery pipes, and engine valve components.
Table of Contents
Volvo L20H Manual
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01. General
- Specifications
- Transport Instruction.; Storage Instruction; Operating Instruction
- Standard Time
- Tool
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02. Standard Parts, Service
- Lubricant; Fuel; Other Fluid
- Service — General, common info about 171 – 179
- Service — Arrival inspections; delivery service
- Service — Maintenance
- Service — Emergency measures
- Safety equipment, without own function group
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03. Engine with Mounting and Equipment
- General, engine installation and its function
- Engine — General, common info about 211 – 218
- Engine — Valve mechanism
- Lubricating System — General, common info about 221 – 224
- Lubricating System — Oil pump; line
- Lubricating System — Oil cooler
- Fuel System — General (common info about 233 – 238)
- Fuel System — Fuel pump; filter; strainer
- Fuel System — Fuel tank; fuel filling pump
- Fuel System — Injector; delivery pipe
- Fuel System — Miscellaneous
- Inlet System; Exhaust System — General, common info about 251 – 258
- Inlet System; Exhaust System — Catalytic converter; exhaust emission control equipment
- 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
- EGR (Exhaust Gas Recirculation)
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04. Elec. System; Warning System; Information System; Instruments
- Comprehensive info, electrical system
- Software documents, complete vehicle
- Faulttracing
- Alternator; Charging; Electric Motor; Electric Drives — Alternator inclusive drive
- Starting System — Starter motor inclusive solenoid
- Starting System — Electric air pre-heater, excluding element
- Other Electrical Equipment — Cleaner
- Cable; Fuse; Relay — General, common info about 371 – 379
- Instrument; Sensor; Warning and Information System — Warning/information unit, display unit
- Miscellaneous — Telematics systems
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05. Power Transmission
- General, common info about 410 – 436
- Transmission, hydraulic control
- Hydrostatic Drive — General, common info about 441 – 443
- Hydrostatic Drive — Hydraulic motor incl. operating system.
- Hydrostatic Drive — Hydraulic pump incl.coupling, travelling incl. operating system
- Front Axle; Rear Axle — General, common info about 461 – 468
- Front Axle; Rear Axle — Front axle
- Front Axle; Rear Axle — Rear axle 1
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06. Brake
- Comprehensive info about brakes
- Wheel Brake — Front wheel brake, dry brake
- Hydraulic Brake System — General, common info about 520 – 522
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07. Steering
- Comprehensive info, steering
- General, common info about 641 – 647
- Steering wheel; steering column
- Hydraulic equipment
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08. Frame; Springs; Damping; Axle Suspension; Wheel/track Unit
- Comprehensive info about frame and track unit/wheels
- Frame — Counterweight
- Frame Link — General, frame link complete
- Frame Link — Bearings
- Wheels; Tracks; Tyre; Hub; Drum — Wheel
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09. Machinery House; Cab; Exterior Trim Parts Anywhere
- Comprehensive info, machinery house and cab
- Cab, Naked; Canopy — Cab mounting
- Engine Hood; Mudguard; Foot Step — Engine hood with assembly parts
- Trim Part, Outside; Glass; Sealing Moulding — Glass; sealing moulding
- Air Conditioning Unit — General, common info about 872 – 877
- Air Conditioning Unit — Cooling unit
- Air Conditioning Unit — Auxiliary heater, diesel fuel operated
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10. Hydraulic System; Digging/ Handling/ Grading Equipm.; Misc. Equip.
- Working Hydraulics; Servo Hydraulics — General, common info about 911 – 917
- 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
- Mechanical Equipment/attachment — Attachment bracket, mechanical and hydraulic Quickfit
- Unit, Load Handling — Lifting frame work with mounting and link arm system
Operator Display, Telematics System and Electrical Relay
Relevant component references include “Warning/information unit, display unit” and “Telematics systems”.
Keep telematics references separate from instrument and monitoring-component references; a shared electrical chapter does not make them the same service subject.
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