Volvo L70D Wheel Loader Repair Manual

Manuals: Repair Service Manual

Table of Content L70D Service Information

GENERAL
DESCRIPTION, COMPLETE MACHINE
General
Product identification plates
General
Capacities, (litres)

Section 2 Engine

Section 3 Electrical system

Section 4 Power transmission

Section 5 Brakes

Section 6 Steering system

Section 8 Cab, interior fittings and machine superstructure

Section 9 Hydraulic system

Tightening torques
VOLVO standard tightening torques
Weights, (approx.)
TRANSPORT INSTRUCTION.; STORAGE INSTRUCTION; OPERATING INSTRUCTION
General
Transporting the machine
STANDARD TIME
General
STANDARD PARTS, SERVICE
LUBRICANT; FUEL; OTHER FLUID
General
Recommended lubricants
SERVICE
General, common info about 171 – 179
Cleanliness in hydraulic systems
Electric welding
Repairing hydraulic system
Service interval
Starting with booster batteries
Maintenance
Axles, oil change
Engine, changing oil and filter
Hydraulic system, oil change
ENGINE WITH MOUNTING AND EQUIPMENT
GENERAL
General, engine installation and its function
Specifications, general
Tightening torques
ENGINE
General, common info about 211 – 218
Compression test
Valve mechanism
Valve mechanism specifications
Valves, adjusting
Crank shaft; connecting rod; vibration damper; fly wheel
FUEL SYSTEM
Fuel pump; filter; strainer
Fuel feed pump specifications
Fuel system, bleeding
Injection pump; regulator; pump companion
Checking stalling speed
Idle speed, checking and adjusting
Injection angle, checking and adjusting
(with injection timing tool 998Â 7057)
Injection pump specifications
Injector; delivery pipe
Injector specifications
INLET SYSTEM; EXHAUST SYSTEM
Turbo charger
Turbocharger, description
Air cleaner with connections; air pre-heater
Air cleaner, description
Specifications, air cleaner
COOLING SYSTEM
General, common info about 261 – 269
Specifications, capacities
Specifications, general
Fan; fan shroud; fan coupling
Hydraulically driven cooling fan, checking and adjusting max. pressure
Hydraulically driven cooling fan, checking and adjusting speed
Hydraulically driven cooling fan, description
ENGINE CONTROL
Stop control
Stop solenoid, setting
ELEC. SYSTEM; WARNING SYSTEM; INFORMATION SYSTEM; INSTRUMENTS
GENERAL
Comprehensive info, electrical system
BATTERY; ENERGY STORAGE SYSTEM; MOUNTING PARTS
General, common info about 311 – 313
ALTERNATOR; CHARGING; ELECTRIC MOTOR; ELECTRIC DRIVES
General, common info about 321 – 322
STARTING SYSTEM
General, common info about 331 – 334
Electric air pre-heater, excluding element
LIGHTING
General, common info about 351 – 356
CABLE; FUSE; RELAY
General, common info about 371 – 379
Wiring diagram 8.
Rotating beacon, direction indicators, brake lights
Wiring diagram 23.
Boom Suspension System (BSS),
hydraulic oil temperature
Wiring diagram 32.
Mechanical parking brake with rider truck safety norms
Electrical distribution box; fuse box; junction box
INSTRUMENT; SENSOR; WARNING AND INFORMATION SYSTEM
General, common info about 383 – 387
Warning/information unit, display unit
POWER TRANSMISSION
GENERAL
General, common info about 410 – 436
APS II
Troubleshooting tips
TRANSMISSION, HYDRAULIC CONTROL
General
Hydraulic transmission HT90 (8-speed model)
Transmission, hydraulic control
Transmission oil pressure, checking (all)
FRONT AXLE; REAR AXLE
General, common info about 461 – 468
Differential carrier assembly
Differential lock AWB15
Planetary gear, hub
Front axle
Front axle, installing
Front axle, removing
Rear axle 1
Differential lock, with control
Differential lock, adjusting
BRAKE
GENERAL
Comprehensive info about brakes
Functional description
WHEEL BRAKE
General, common info about 511 – 519
Front wheel brake (wet brake)
Brake discs, front wheel brakes, checking wear
Rear wheel brake, axle 1, wet brake
Brake discs, rear wheel brakes, changing
Brake discs, rear wheel brakes, checking wear
HYDRAULIC BRAKE SYSTEM
General, common info about 520 – 522
Brake system, bleeding
Checking function
Pressure in circuit, checking and adjusting
Retardation, functionality test
Brake valve
Brake pedal, adjusting angle
Foot brake valve, functional description
Brake accumulator; hydraulic pump
Accumulator, checking (removed)
Discarded accumulators
PARKING BRAKE
General, common info about 551 – 554
Parking brake, adjusting
Parking brake, electrical system, description
STEERING
GENERAL
Comprehensive info, steering
STEERING
General, common info about 641 – 647
Specifications, general
Specifications, general
Specifications, tightening torques
Hydraulic equipment
Hydraulic pump, description
Steering cylinder, cutaway view
Steering cylinder, reconditioning
Steering pressure and holding pressure, checking and adjusting
Steering valve, description
Steering valve, reconditioning
Supplementary steering
Secondary steering, description
LEVER STEERING
General
Control lever SE603, checking input/output voltage
Lever steering (CDC), electrical functions
Lever steering (CDC), general description
Lever steering (CDC), hydraulic system, description
Lever steering, adjusting steering speed
Lever steering, checking and adjusting control valve
FRAME; SPRINGS; DAMPING; AXLE SUSPENSION; WHEEL/TRACK UNIT
FRAME
General, common info about 711 – 718
General description
Specifications, weight
FRAME LINK
Bearings
AXLE SUSPENSION
Pivot suspension
Rear axle suspension
Rear axle suspension, checking play
WHEELS; TRACKS; TYRE; HUB; DRUM
General, common info about 771 – 775
Tightening torques
MACHINERY HOUSE; CAB; EXTERIOR TRIM PARTS ANYWHERE
CAB, NAKED; CANOPY
General
Cab suspension, description
Tightening torques
AIR CONDITIONING UNIT
General, common info about 872 – 877
Heating, ventilation and air conditioning unit, description
Cooling unit
Air conditioning, description
AC operational reliability, functional description
Air conditioning specifications
Air conditioning, checking performance
Electrical system, functional description
Evaporator, cleaning
HYDRAULIC SYSTEM; DIGGING/ HANDLING/ GRADING EQUIPM.; MISC. EQUIP.
WORKING HYDRAULICS; SERVO HYDRAULICS
General, common info about 911 – 917
Central valve, description
Control valve, description
Hydraulic diagram, boom suspension system,
single-action lifting function, differential lock
Hydraulic diagram, working hydraulics, tilt,
lifting, and float position function
Hydraulic diagram, working hydraulics,
3rd and 4th functions, attachment lock
Wiring diagram 150. 3rd hydraulic function
with adjustable flow
Working hydraulics, description
Working hydraulics
Shock valve, lift function, checking and adjusting
Shock valve, tilt function, checking and adjusting
Shock valves 3rd and 4th functions,
checking and adjusting
Pump, working hydraulics
Hold (stand-by) pressure, checking and adjusting
Working pressure, checking and adjusting
Servo hydraulic system
Servo pressure, checking and adjusting
Servo pressure, checking by spool in control valve
Other hydraulic equipment
Boom Suspension System (BSS400), checking function
Boom Suspension System (BSS400),
electrical system description
Boom Suspension System (BSS400),
general description
Boom Suspension System (BSS400),
hydraulic system description
Hydraulic oil pressure in accumulators,
unloading
Precharging pressure in accumulators,
checking and adjusting
Pressure reducing valve (CT8) for
Boom Suspension System, setting
Specifications, general
UNIT, LOAD HANDLING
Lifting frame work with mounting and link arm system
Designations of loader unit
bearing arrangements and links