Overview
The Volvo L90C OR BM Wheel Loader Service Repair Manual provides a workshop reference for maintaining, diagnosing and repairing the documented machine systems. The contents bring together power transmission, braking equipment, steering components, and working and servo hydraulics.
Component-level coverage extends to differential-lock controls, hydraulic transmission controls, turbocharger components, fuel injectors and delivery pipes, and supplementary steering.
Table of Contents
Volvo L90C OR BM Manual
- 01. General
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02. Standard Parts, Service
- Service — General, common info about 171 – 179
- Safety equipment, without own function group
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03. Engine with Mounting and Equipment
- Engine — General, common info about 211 – 218
- Engine — Valve mechanism
- Lubricating System — General, common info about 221 – 224
- Fuel System — General (common info about 233 – 238)
- Fuel System — Fuel pump; filter; strainer
- Fuel System — Injection pump; regulator; pump companion
- Fuel System — Injector; delivery pipe
- 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
- Engine Control — Cold start control
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04. Elec. System; Warning System; Information System; Instruments
- Comprehensive info, electrical system
- Battery; Energy Storage System; Mounting Parts — General, common info about 311 – 313
- Battery; Energy Storage System; Mounting Parts — Battery
- Alternator; Charging; Electric Motor; Electric Drives — General, common info about 321 – 322
- Starting System — Starter motor inclusive solenoid
- Lighting, front, including parking light and day running light
- 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 — Warning/information unit, display unit
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05. Power Transmission
- General, common info about 410 – 436
- Transmission, Hydraulic Control
- Front Axle; Rear Axle — General, common info about 461 – 468
- Front Axle; Rear Axle — Differential lock, with control
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06. Brake
- Comprehensive info about brakes
- Wheel Brake — General, common info about 511 – 519
- Hydraulic Brake System — General, common info about 520 – 522
- Parking Brake — General, common info about 551 – 554
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07. Steering
- General
- Steering — General, common info about 641 – 647
- Steering — Hydraulic equipment
- Steering — Supplementary steering
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08. Frame; Springs; Damping; Axle Suspension; Wheel/track Unit
- Comprehensive info about frame and track unit/wheels
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09. Machinery House; Cab; Exterior Trim Parts Anywhere
- Air Conditioning Unit — General, common info about 872 – 877
- Air Conditioning Unit — Cooling unit — Wiring diagram, climate control system and air conditioning, circuit 22:1 — 22:8
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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 — Working hydraulics
- Working Hydraulics; Servo Hydraulics — Pump, working hydraulics
- Working Hydraulics; Servo Hydraulics — Servo hydraulic system — Servo pressure, checking and adjusting (Machine with separate attachment locking)
- Working Hydraulics; Servo Hydraulics — Servo hydraulic system — Servo pressure, checking and adjusting (Machine without separate attachment locking)
- Unit, Load Handling — Lifting frame work with mounting and link arm system
- Miscellaneous — General, common info about 992 – 996
Lifting Frame and Hydraulic Component References
Relevant component references include “Servo pressure, checking and adjusting (Machine without separate attachment locking)” and “Servo pressure, checking and adjusting (Machine with separate attachment locking)”.
Lifting-frame and attachment references belong to the handling assembly, while pump and fluid-system entries sit in the hydraulic group. Choose the branch matching the part being inspected.
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