Volvo L90C Wheel Loader 2020 (Preview)
COVER
Installation Instruction
3rd hydraulic function
4th hydraulic function (2)
4th HYDRAULIC FUNCTION
Arbetsbelysning, främre
Attachment bracket with attachment locking, (Optimal)
Attachment lock
Attachment locking
Care Track
Electrical engine heater
Engine heater, 120 V (USA)
Hip belt
Installation kit for operators seat (2)
Installation kit for operators seat
Kit for fitting the radio
Protective grille, headlamp
Rotating beacon
Sun blind
Windscreen washer
Working light, rear
Repair
(0) GENERAL
Description
Product identification plates
Section 4 Power transmission
Section 5 Brakes
Time Guide
Volvo standard tightening torques
(1) STANDARD PARTS, SERVICE
Cleanliness, brake and hydraulic systems
Electric welding
Manual release of parking brake
Recommended lubricants
Removing propeller shafts
Repairing hydraulic system
Towing
Transporting wheel loader on another vehicle
(2) ENGINE WITH MOUNTING AND EQUIPMENT
Checking speed with a frequency meter
Coolant pump for intercooler, reconditioning
Coolant pump for intercooler, removing and installing
Coolant pump, removing and installing
Description
Engine, installing
Engine, removing
Feed pump, checking feed pressure
Fuel system, air bleeding
Fuel tank, removing and installing
Idling speed, checking and adjusting
Injection timing, checking and adjusting
Oil pump, removing and installing
Specifications, capacities (2)
Specifications, capacities (3)
Specifications, capacities
Specifications, general (2)
Specifications, general (3)
Specifications, general (4)
Specifications, general (5)
Specifications, general (6)
Specifications, general (7)
Specifications, general (8)
Specifications, general (9)
Specifications, general (10)
Specifications, general (11)
Specifications, general (12)
Specifications, general
Specifications, tightening torques (2)
Specifications, tightening torques (3)
Specifications, tightening torques
Specifications, weights (2)
Specifications, weights
Stop solenoid, adjusting stroke (2)
Stop solenoid, adjusting stroke
Stop solenoid, fault-tracing tips
Stop solenoid
Valves, adjusting
(3) ELEC. SYSTEM; WARNING SYSTEM; INFORMATION SYSTEM; INSTRUMENTS
Air conditioning, pressure monitor, SE22, checking
Air conditioning, thermostat, SE21, checking
Air conditioning∗ (2)
Air conditioning∗
Air filter, SE7, checking
Automatic greasing∗
Axle oil temperature, SE84 and SE84, checking
Boom kick-out, SE33, checking
Boom Suspension System∗ (2)
Boom Suspension System∗
Brake pressure, SE14, checking
Bucket positioner, SE35, checking
Code key for diodes
Codes used in wiring diagrams
Component location (2)
Component location (3)
Component location (4)
Component location (5)
Component location (6)
Component location (7)
Component location (8)
Component location (9)
Component location (10)
Component location (11)
Component location (12)
Component location (13)
Component location (14)
Component location (15)
Component location (16)
Component location (17)
Component location (18)
Component location (19)
Component location (20)
Component location (21)
Component location (22)
Component location (23)
Component location
Contronic Service Display Unit
Differential pressure, SE51, checking
Dual control∗
Electrical distribution box in cab
Electrical distribution box
Electrical repair kit
Engine speed, SE3, checking
Engine temperature, SE1, checking
Explanations of wiring diagrams (lead and component marking)
Fuel level, SE17, checking
General description of the control unit (ECU)
General description
Headlights, adjusting
Instruments and controls
Lever steering, CDC∗ (2)
Lever steering, CDC∗ (3)
Lever steering, CDC∗
Limp-Home operation, gear shifting
Limp-Home operation, monitoring
Limp-Home operation, preheating
Limp-Home operation
List of circuits
Loud tone horn∗, seat with air suspension∗
Magnetising, 100 A alternator∗
Monitored functions
Other electrical functions (controlled by the control unit)
Parking brake pressure, SE6, checking
Safety when working with batteries
Single lever control, CDC, 4 gears
Single lever control, gear shifting
Single lever control, servo hydraulics
Special instructions for working on the electrical system
Specifications, general (2)
Specifications, general (3)
Specifications, general (4)
Specifications, general (5)
Specifications, general (6)
Specifications, general
Steering pressure, SE15, checking
Stop lights, SE29, checking
Transmission disengagement, SE2, checking
Transmission oil pressure, SE12, checking
Transmission oil temperature, SE11, checking
Travelling speed, SE4, checking
Units connected to the control unit
Wiring diagram, circuit 1 1 — 1 10
Wiring diagram, circuit 2 1 — 2 10
Wiring diagram, circuit 3 1 — 3 10
Wiring diagram, circuit 4 1 — 4 10
Wiring diagram, circuit 5 1 — 5 10
Wiring diagram, circuit 6 1 — 6 10
Wiring diagram, circuit 7 1 — 7 10 (2)
Wiring diagram, circuit 7 1 — 7 10
Wiring diagram, circuit 8 1 — 8 10
Wiring diagram, circuit 9 1 — 9 7
Wiring diagram, circuit 10 1 — 10 8
Wiring diagram, circuit 11 1 — 11 7 (2)
Wiring diagram, circuit 11 1 — 11 7 (3)
Wiring diagram, circuit 11 1 — 11 7 (4)
Wiring diagram, circuit 11 1 — 11 7 (5)
Wiring diagram, circuit 11 1 — 11 7
Wiring diagram, circuit 12 1 — 12 10
Wiring diagram, circuit 13 1 — 13 10 (2)
Wiring diagram, circuit 13 1 — 13 10
Wiring diagram, circuit 14 1 — 14 10
Wiring diagram, circuit 15 1 — 15 7
Wiring diagram, circuit 16 1 — 16 8
Wiring diagram, circuit 17 1 — 17 5
Wiring diagram, circuit 18 1 — 18 8
Wiring diagram, circuit 19 1 — 19 7 (2)
Wiring diagram, circuit 19 1 — 19 7
Wiring diagram, circuit 20 1 — 20 7 (2)
Wiring diagram, circuit 20 1 — 20 7 (3)
Wiring diagram, circuit 20 1 — 20 7
Wiring diagram, circuit 21 1 — 21 7
Wiring diagram, circuit 22 1 — 22 8 (2)
Wiring diagram, circuit 22 1 — 22 8
Wiring diagram, circuit 23 1 — 23 8
Wiring diagram, circuit 24 1 — 24 6
Wiring diagram, circuit 25 1 — 25 9
Wiring diagram, circuit 27B 1 — 27B 10
Wiring diagram, circuit 30 1 — 30 10
Wiring diagram, circuit 31 1 — 31 7
Wiring diagram, circuit 32 1 — 32 10
Wiring diagram, circuit 33 1 — 33 10
(4) POWRER TRANSMISSION
Description
Differential lock, adjusting
Drive axles, description
Front axle, installing
Front axle, removing
Gear selector valve, description
Limp-Home operation
Rear axle suspension, description
Rear axle suspension, measuring axial and radial clearance
Rear axle, installing
Rear axle, removing
Specifications, capacities (dm (2)
Specifications, capacities (dm (3)
Specifications, capacities (dm (4)
Specifications, capacities (dm
Specifications, general (2)
Specifications, general (3)
Specifications, general (4)
Specifications, general (5)
Specifications, general
Specifications, weights (2)
Specifications, weights (3)
Specifications, weights (4)
Specifications, weights (5)
Specifications, weights
Symbol diagram HT131, L90C
Symbol diagram HT205, L120C
The axial clearance of the rear axle bridge, adjusting
Transmission, checking oil pressure
Transmission, description
Transmission, installing
Transmission, removing
Trouble-shooting tips
Wear ring (differential carrier assembly), replacing
(5) BRAKE
Accumulator, checking (removed)
Brake discs, checking wear (with built-in wear indicator)
Brake discs, checking wear (without built-in wear indicator)
Brake discs, replacing (with built-in wear indicator)
Brake discs, replacing (without built-in wear indicator)
Brake system, air bleeding
Brake system, retardation, checking function
Checking function
Description (2)
Description (3)
Description
Discarded accumulators
Foot brake pedal, adjusting angle and pedal free travel
Foot brake valve (removed), reconditioning
Function
Hydraulic diagram
Parking brake (mechanically operated), checking and adjusting
Parking brake, replacing discs
Pressure in circuit, checking and adjusting
Specifications, general (2)
Specifications, general (3)
Specifications, general (4)
Specifications, general (5)
Specifications, general
Wear indicator, description
(6) STEERING
Description (2)
Description of function
Description, general
Description
Function test
Hydraulic diagram, basic machine
Hydraulic diagram, lever steering (CDC)∗ and secondary steering∗
Hydraulic diagram, lever steering (CDC)∗
Hydraulic diagram, secondary steering∗
Hydraulic system, description
Lever steering, adjusting steering speed
Lever steering, checking and adjusting control valve
Specifications, general (2)
Specifications, general
Stand-by pressure and working pressure, checking and adjusting
Steering cylinder, description
Steering cylinder, replacing
Steering lever CU3, checking input output voltage
Steering pump, description
Steering pump, reconditioning (removed)
Steering valve, description
(7) FRAME;SPRINGS;DAMPING;AXLE SUSPENSION; WHEEL TRACK UNIT
Description
Frame joint, replacing bearings
Specifications, tightening torques
Specifications, weights (2)
Specifications, weights (3)
Specifications, weights (4)
Specifications, weights
(8) MACHINERY HOUSE;CAB;EXTERIOR TRIM PARTS ANYWHERE
AC-safety, description of function
Air conditioning, performance test
Cab, installing
Cab, removing
Description (2)
Description (3)
Description (4)
Description
Electrical system, air conditioning, description of function
Rear window, replacing
Rear window, sealing
Refrigerant in air conditioning
Specifications, weights
Windscreen side pane, replacing and sealing
Windscreen, replacing and sealing
Windscreen, sealing
Wiring diagram, climate control system and air conditioning
(9) HYDRAULIC SYSTEM;DIGGING HANDING GRANDING EQUIPM.; MISC. EQUIP
4th hydraulic function, description
Accumulator for Boom Suspension System, releasing pressure
Accumulator, Boom Suspension System, reconditioning
Accumulator, precharging pressure, checking and adjusting
Back-up valve, opening pressure, checking
Bearing points in TP-linkage
Boom kick-out and bucket positioner, adjusting
Boom Suspension System, checking
Boom Suspension System
Control valve
Description
Hydraulic diagrams, working hydraulics
Lifting arm, replacing bearings at lower bucket or attachment mounting
Lifting cylinder, changing seals in machine
Lifting cylinder, replacing bushings (removed)
Lifting cylinder, replacing
Lifting tilting cylinder, (principle diagram)
Pressure back-up for servo circuit, accumulator checking
Pressure-reducing valves R1 and R2,
Releasing the hydraulic oil pressure in the accumulator
Safety valve TB, checking opening pressure
Servo pressure, checking and adjusting (2)
Servo pressure, checking and adjusting
Servo pressure, checking at spool in control valve
Servo valve, description of function
Servo valve, operating controls, adjusting
Shock and anti-cavitation valve
Shock valve, lifting function, checking and adjusting
Shock valve, tilting function, checking and adjusting
Specifications, capacities (2)
Specifications, capacities
Specifications, general (2)
Specifications, general (3)
Specifications, general (4)
Specifications, general (5)
Specifications, general (6)
Specifications, general
Specifications, weights (2)
Specifications, weights (3)
Specifications, weights
Tilting cylinder, changing seals in machine
Tilting cylinder, replacing bearings (removed)
Tilting cylinder, replacing
Working hydraulics, description
Working pressure, checking and adjusting
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