Overview
The Volvo BL70B Backhoe Loader Service Repair Manual brings the machine’s service topics together in a structured workshop reference. Coverage includes engine systems, power transmission, braking equipment, and steering components.
The service topics include hydraulic transmission controls, propeller-shaft assemblies, lifting-frame and link-arm assemblies, dipper-arm equipment, and hydraulic tanks, filters and oil-cooling equipment.
Table of Contents
Volvo BL70B Manual
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01. General
- Specifications
- Standard Time
- Tool
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02. Standard Parts, Service
- Lubricant; Fuel; Other Fluid
- Service — General, common info about 171 – 179
- Service — Maintenance
- 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 — Cylinder block with crankcase ventilation
- Engine — Valve mechanism
- Engine mounting
- Lubricating System — General, common info about 221 – 224
- Lubricating System — Oil pump; line
- 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
- Fuel System — Miscellaneous
- Inlet System; Exhaust System — General, common info about 251 – 258
- Inlet System; Exhaust System — Silencer; exhaust pipe
- Inlet System; Exhaust System — Catalytic converter; exhaust emission control equipment
- 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 — Fan; fan shroud; fan coupling
- Engine Control — Revs control, foot operated
- 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
- Battery; Energy Storage System; Mounting Parts — Battery
- Alternator; Charging; Electric Motor; Electric Drives — Alternator inclusive drive
- Starting System — General, common info about 331 – 334
- Starting System — Electric air pre-heater, excluding element
- Lighting — General, common info about 351 – 356
- Other Electrical Equipment — Automatic control/blocking function, lacking a function group of its own
- Cable; Fuse; Relay — General, common info about 371 – 379
- 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 — Gear control
- Gearbox — Mounting, distributing gearbox
- 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
- General, common info about 491 – 492
- Oil cooler, transmission
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06. Brake
- Comprehensive info about brakes
- Wheel Brake — General, common info about 511 – 519
- Wheel Brake — Rear wheel brake, axle 1, wet brake
- Hydraulic Brake System — General, common info about 520 – 522
- Hydraulic Brake System — Brake valve
- Parking Brake — General, common info about 551 – 554
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07. Steering
- Comprehensive info, steering
- Steering axle; steering spindle, driving
- General, common info about 641 – 647
- Steering wheel; steering column
- Steering arm; steering linkage; track rod
- 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
- Wheels; Tracks; Tyre; Hub; Drum — Wheel
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09. Machinery House; Cab; Exterior Trim Parts Anywhere
- Comprehensive info, machinery house and cab
- Engine Hood; Mudguard; Foot Step — Engine hood with assembly parts
- Trim Part, Outside; Glass; Sealing Moulding — Glass; sealing moulding
- Trim Part, Outside; Glass; Sealing Moulding — Window, openable (not windshield)
- Cab Interior/upholstery — Upholstery
- Cab Interior/upholstery — Driver’s seat, complete; instructor’s seat
- Air Conditioning Unit — General, common info about 872 – 877
- Air Conditioning Unit — Cooling unit
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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 — Servo hydraulic system
- Working Hydraulics; Servo Hydraulics — Lever; pedal
- Working Hydraulics; Servo Hydraulics — Other hydraulic equipment
- Mechanical Equipment/attachment — Bucket, incl. possible cylinders with tubes and hoses
- Mechanical Equipment/attachment — Attachments, others
- Unit, Load Handling — Lifting frame work with mounting and link arm system
- Unit, Digging — General, common info about 971 – 975
- Unit, Digging — Slewing system, boom
- Unit, Digging — Stabiliser; stabiliser blade
- Unit, Digging — Boom with links
- Unit, Digging — Dipper arm with links
Auxiliary Attachments, Bucket Cylinder and Lifting Frame
This coverage includes the entries “Attachments, others” and “Bucket, incl. possible cylinders with tubes and hoses”.
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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