Name: Volvo L120D Wheel Loader Repair Service Manual
SKU: 578802
Price: 39.00 USD
Availability: InStock

Table of Content L120D Service Information

GENERAL
- DESCRIPTION, COMPLETE MACHINE
  - General
    - Product identification plates
- SPECIFICATIONS
  - General
    - Tightening torques
    - Tightening torques
    - Volvo standard tightening torques
- TRANSPORT INSTRUCTION.; STORAGE INSTRUCTION; OPERATING INSTRUCTION
  - General
    - Transporting the machine
- STANDARD TIME
  - General
- TOOL
  - General
    - Section 4 Power transmission

STANDARD PARTS, SERVICE
- LUBRICANT; FUEL; OTHER FLUID
  - General
    - Recommended lubricants
- SERVICE
  - Maintenance
    - Charging of batteries
    - Cleanliness, brake and hydraulic systems
    - Repairing the hydraulic system
    - Safety filter (secondary filter)
  - Emergency measures
    - Manual release of parking brake, L90D
      (later version)
    - Manual release of parking brake, L120D
    - Manual release of parking brake, L90D
    - Starting with booster batteries
    - Transporting wheel loader on another vehicle

ENGINE WITH MOUNTING AND EQUIPMENT
- GENERAL
  - General, engine installation and its function
    - Engine, installing
    - Specifications, tightening torques
    - Specifications, capacities
    - Specifications, general
    - Specifications, tightening torques
- ENGINE
  - Cylinder head
    - Description, cylinder head
  - Cylinder block with crankcase ventilation
    - Description, pistons and piston rings, L90D
    - Description, cylinder block
  - Valve mechanism
  - Engine transmission; camshaft
    - Description, engine transmission
  - Crank shaft; connecting rod; vibration damper; fly wheel
    - Description, crankshaft
- LUBRICATING SYSTEM
  - General, common info about 221 – 224
    - Description, lubrication and oil system
    - Specifications, L120D
  - Oil cooler
    - Oil cooler, description
- FUEL SYSTEM
  - General (common info about 233 – 238)
    - Description, general
  - Fuel pump; filter; strainer
  - Fuel tank; fuel filling pump
    - Specifications, capacities, L120D
  - Injection pump; regulator; pump companion
    - Injection timing, checking and setting
    - Specifications, general, L120D
  - Injector; delivery pipe
    - Copper tubes for injectors, changing
- INLET SYSTEM; EXHAUST SYSTEM
  - Turbo charger
  - Air cleaner with connections; air pre-heater
    - Specifications, air cleaner
- COOLING SYSTEM
  - General, common info about 261 – 269
  - Radiator, mounting and connections included
    - Radiator, removing and installing
  - Coolant pump; thermostat
    - Coolant pump for Intercooler,
      removing and installing
    - Hydraulically driven cooling fan,
      checking and adjusting speed
    - Hydraulically driven cooling fan L120D, description
    - Hydraulically driven cooling fan,
      checking and adjusting max. pressure
- ENGINE CONTROL
  - Stop control
    - Stop solenoid, adjusting stroke
    - Stop solenoid, troubleshooting advice

ELEC. SYSTEM; WARNING SYSTEM; INFORMATION SYSTEM; INSTRUMENTS
- GENERAL
  - Comprehensive info, electrical system
    - 2 Software functions, engine
    - 3 Software functions, electrical system
    - 4 Software functions, power transmission
    - 5 Software functions, brakes
    - 6 Software functions, steering system
    - 9 Software functions, hydraulic system
    - Air filter pressure
    - APS II
    - Axle oil temperature
    - Back-up alarm
    - Boom Suspension System (BSS)
    - Brake pressure
    - Brake test
    - Break in computer communication
    - Central lubrication
    - Communication with data buses
    - Control units, software functions
    - Coolant temperature, engine
    - Coolant temperature, outlet, radiator
      (L120D with hydraulically driven radiator fan)
    - Description of software functions table
    - Differential lock
    - Downshift audible signal (beep)
    - Electrical system, description
    - Electrical system, instructions for working on the electrical system
    - Electrical system, specifications
    - Electronic control system, description
    - Engine oil pressure
    - Engine Shut Down (power reduction)
    - Engine Shutdown
    - Engine speed for V-ECU
    - Fuel level
    - Gear selector
    - Gearshifting solenoids
    - Hydraulic oil temperature
      (L120D with hydraulically driven radiator fan)
    - Instrument control unit I-ECU, functional description
    - Interval wiper
    - Limp-Home, by-passed V-ECU
    - Output brake pressure
    - Overspeed transmission
    - Parking brake, electric
    - Parking brake, mechanical (L90D)
    - Preheating of induction air
    - Radiator fan control
      (L120D with hydraulically driven radiator fan)
    - Reduced computer communication
    - Secondary steering
    - Service interval
    - Starter inhibitor
    - Starter motor engagement
    - System voltage
    - Transmission disengagement
    - Transmission oil filter
    - Transmission oil pressure
    - Transmission oil temperature
    - Travel speed
    - Tyre radius
    - Vehicle control unit V-ECU, functional description
    - Wiping during and after washing
- BATTERY; ENERGY STORAGE SYSTEM; MOUNTING PARTS
  - General, common info about 311 – 313
    - Battery, charging
    - Battery, description
    - Battery, specifications
- ALTERNATOR; CHARGING; ELECTRIC MOTOR; ELECTRIC DRIVES
  - General, common info about 321 – 322
    - Alternator, description
    - Alternator, specifications
- STARTING SYSTEM
  - General, common info about 331 – 334
    - Starter motor, specifications
    - Starting system, description
  - Electric air pre-heater, excluding element
    - Preheating, description
- LIGHTING
  - General, common info about 351 – 356
    - Lighting, description
    - Lighting, specifications
- CABLE; FUSE; RELAY
  - General, common info about 371 – 379
    - Chassis connections
    - Electrical components
    - Electrical symbols and designations
    - Explanations of cable and component markings
    - Key to communication cables
    - Positive feed
    - Signal earth
    - Wiring diagram 8.
      Rotating beacon, direction indicators, brake lights
    - Wiring diagram 11.
      Gearshifting solenoids, transmission disengagement
    - Wiring diagram 12.
      Sensor transmission oil, mode selector, kickdown
    - Wiring diagram 19.
      Heating, ventilation, air conditioning (AC)
    - Wiring diagram 22.
      Work hydraulics, 3rd, 4th, 5th hydraulic functions
    - Wiring diagram 23.
      Boom Suspension System (BSS), hydraulic oil temperature
    - Wiring diagram 32.
      Mechanical parking brake with rider truck safety norms
    - Wiring diagram 32B.
      Parking brake with rider truck safety norms
  - Electrical distribution box; fuse box; junction box
    - Electrical distribution box, description
- INSTRUMENT; SENSOR; WARNING AND INFORMATION SYSTEM
  - General, common info about 383 – 387
  - Warning/information unit, display unit
    - Display panel and keypad, general
    - Display panel, general
    - Display panel, information displays
    - Display panel, initial display
    - Display panel, operating display
    - Display panel, setting
    - Middle instrument panel with warning lamps
    - Service display unit, axles and brakes
    - Service display unit, electrical control input signals 1
    - Service display unit, electrical control input signals 2
    - Service display unit, electrical control input signals 3
    - Service display unit, electrical control output signals 1
    - Service display unit, electrical control output signals 2
    - Service display unit, electrical input sensor
    - Service display unit, electrical system battery voltage
    - Service display unit, engine
    - Service display unit, general
    - Service display unit, hydraulics
    - Service display unit, settings
    - Service display unit, transmission

POWER TRANSMISSION
- GENERAL
  - General, common info about 410 – 436
    - Specifications, L90D
- CLUTCH; TORQUE CONVERTER
  - Clutch control, manual or fixed
    - Specifications, L90D and L120D, general
  - Hydrodynamic coupling, torque converter
    - Specifications, L120D
- TRANSMISSION, HYDRAULIC CONTROL
  - General
    - Specifications, capacities
    - Specifications, general
    - Specifications, weight
  - Transmission, hydraulic control
    - Clutch pressure chart, L90Dâˆ—
    - Clutch pressure chart, L120Dâˆ—
    - Gear selector valve, description
    - Hydraulic transmission, checking oil pressure
    - Symbol diagram, HT131, L90D
    - Symbol diagram, HT205, L120D
    - Transmission, installing
- GEARBOX,
  - Distributing gearbox
    - Specifications, capacities
- FRONT AXLE; REAR AXLE
  - General, common info about 461 – 468
    - Specifications, L90D, general
    - Specifications, L120D, general
    - Specifications, L120D, weight
  - Front axle
    - Front axle, installing
    - Specifications, L90D, capacities
    - Specifications, L120D, capacities
  - Rear axle 1
    - Rear axle, installing
    - Specifications, capacities
  - Differential lock, with control
    - Differential lock, adjusting

BRAKE
- GENERAL
  - Comprehensive info about brakes
- WHEEL BRAKE
  - General, common info about 511 – 519
    - Specifications, general
- HYDRAULIC BRAKE SYSTEM
  - General, common info about 520 – 522
    - Brake system, bleeding
    - Brake system, retardation, checking function
    - Foot brake pedal, adjusting angle and pedal clearance
    - Pressure in circuit, checking and adjusting
  - Brake valve
    - Specifications, general
  - Brake accumulator; hydraulic pump
    - Discarded accumulators
    - Specifications, L120D, general
- PARKING BRAKE
  - General, common info about 551 – 554
    - Parking brake (hydraulic), brake pad
      replacement, later version
    - Parking brake (hydraulically controlled), checking and adjustment, later version

STEERING
- GENERAL
  - Comprehensive info, steering
- STEERING
  - General, common info about 641 – 647
    - Hydraulic diagram, steering,
      from and including chassis no. 17372
    - Hydraulic diagram, steering, incl. lever steering (CDC)
    - Hydraulic diagram, steering, incl. lever steering (CDC)
      and secondary steering
    - Hydraulic diagram, steering, incl. secondary steering
    - Hydraulic diagram, steering, from and
      including chassis no. 14445
    - Hydraulic diagram, steering, incl. lever steering (CDC)
    - Hydraulic diagram, steering, incl. lever steering (CDC) and secondary steering
    - Hydraulic diagram, steering, incl. secondary steering
  - Hydraulic equipment
    - Hold (stand-by) pressure and working pressure,
      checking and adjusting
    - Shift valve L120D, description
    - Shift valve, reconditioning (removed)
    - Specification L120D, general
    - Steering pump, description
    - Steering valve, description
  - Supplementary steering
- LEVER STEERING
  - General
    - Hydraulic system, description
    - Lever steering, checking and adjusting control valve
    - Wiring diagrams 17 and 9

FRAME; SPRINGS; DAMPING; AXLE SUSPENSION; WHEEL/TRACK UNIT
- GENERAL
  - Comprehensive info about frame and track unit/wheels
- FRAME
  - General, common info about 711 – 718
    - Specifications, tightening torques
  - Frame, complete
    - L120D specifications, weight
  - Protection; belly plate; bumper
    - Specifications, weight
  - Counterweight
    - L120D specifications, weight
- WHEELS; TRACKS; TYRE; HUB; DRUM
  - General, common info about 771 – 775
    - L120D specifications, weight

MACHINERY HOUSE; CAB; EXTERIOR TRIM PARTS ANYWHERE
- CAB, NAKED; CANOPY
  - General
    - Cab suspension, description
    - Cab, installing
    - Cab, removing
    - Tightening torques
- AIR CONDITIONING UNIT
  - General, common info about 872 – 877
  - Cooling unit
    - Air conditioning, checking performance
    - Air-conditioning unit, specifications
    - Evaporator in the air-conditioning unit, cleaning

HYDRAULIC SYSTEM; DIGGING/ HANDLING/ GRADING EQUIPM.; MISC. EQUIP.
- WORKING HYDRAULICS; SERVO HYDRAULICS
  - General, common info about 911 – 917
    - Hydraulic diagram, working hydraulic system
    - Hydraulic diagram L90D, complete
    - Hydraulic diagram L120D, complete
    - Hydraulic diagram, working hydraulic system
      incl. attachment locking and 3rd/4th function
    - Hydraulic diagram, working hydraulic system
      incl. attachment locking and 3rd function
    - Specifications, L120D, capacities
    - Specifications, general
  - Working hydraulics
    - Shock and anti-cavitation valve
    - Specification L120D, general
    - Specification L90D, general
    - Specifications, L120D, capacities
    - Specifications, L90D, capacities
    - Specifications, weight
  - Pump, working hydraulics
    - Back-up valve, opening pressure, checking
    - L90D specifications, weight
    - L120D specifications, weight
    - Shock valve, lift function, checking and adjusting
    - Shock valve, tilt function, checking and adjusting
    - Specification L90D, general
    - Specification L120D, general
    - Specifications, tightening torques
  - Servo hydraulic system
    - Pressure back-up for servo circuit,
      checking accumulator
    - Servo pressure, checking and adjusting
      (machine with separate attachment locking)
    - Servo pressure, checking and adjusting
      (machine without separate attachment locking)
    - Servo pressure, checking by spool in control valve
    - Servo valve, functional description
    - Specification L90D, general
    - Specification L120D, general
    - Specifications, weight
  - Other hydraulic equipment
    - Boom Suspension System (BSS400), checking function
    - Boom Suspension System (BSS400), electrical system description
    - Boom Suspension System (BSS400), hydraulic system description
    - Precharge pressure in accumulators,
      checking and adjusting
    - Pressure reducing valve (CT8) for
      Boom Suspension System, adjusting
    - Specification L120D, general
- UNIT, LOAD HANDLING
  - Lifting frame work with mounting and link arm system
    - L90D specifications, weight
    - L120D specifications, weight
    - Specification L90D, general
    - Specification L120D, general
    - Specifications, tightening torques
    - Tilt cylinder

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Volvo L120D Wheel Loader Repair Service Manual

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