New Holland Wheel Loader LW170 LW190 service manual

Description New Holland Wheel Loader LW170 LW190 service manual

New Holland Wheel Loader LW170, LW190 pdf service & repair manual

Technical data, specifications, troubleshooting, maintenance, hydraulic schematics, electrical diagrams, disassembly, assembly, removal, installation and other information

MANUAL CONTENT:
ENGINE
IDENTIFICATION DATA
GENERAL SPECIFICATIONS OF SERIES C ENGINE
ENGINE SUPPORTS
DIAGRAMS OF SERIES C ENGINES

TRANSMISSION
GENERAL DESCRIPTION
TORQUE CONVERTER TRANSMISSION
TORQUE CONVERTER
TRANSMISSION TORQUE CONVERTER PUMP
TRANSMISSION
Power train diagram
Transmission control valve
OIL CIRCUIT
PROP-SHAFTS
FRONT AND REAR AXLES
Axle Description
Differential Description
Final drives Description
WHEELS
Tires

BRAKES SYSTEM
GENERAL DESCRIPTION
OPERATION
Operation conditions
DISC BRAKE
BRAKE PEDAL VALVE
Operation of circuit separation valve in the brake group
BRAKES/POWER SYSTEM PUMP
PARKING BRAKE CONTROL VALVE
PARKING BRAKE
Procedure for manual disengagement
Operation of discs parking brake
Disengagement of brake
OTHER COMPONENTS
Service brakes accumulator
Check valve
HYDRAULIC CONNECTIONS OF BRAKE PEDAL VALVE
TROUBLE SHOOTING TESTS
Test of brakes actuation pressure
Setting of minimum and maximum accumulators recharge pressure
Inspection of parking brake engagement
Inspection of accumulator pre-charge
Instructions for the pre-charging of the service brakes accumulator
Air bleeding of brakes system
Check of brake discs wear

STEERING SYSTEM
GENERAL DESCRIPTION
STEERING GROUP
STEERING VALVE
PAGE

STEERING SYSTEM PUMP
STEERING VALVE CONTROL LINKAGE
Linkage installation procedure
Operation
STEERING CYLINDERS
Removal
Disassembly and reassembly
Installation
EMERGENCY STEERING CIRCUIT
Components of the emergency steering

BUCKET BOOMS AND FRAME
GENERAL DESCRIPTION
Bucket
Bucket positioner device
Boom kick-out setting
FRAME
Frame center pivoting

EQUIPMENT HYDRAULIC SYSTEM
GENERAL DESCRIPTION
HYDRAULIC SYSTEM PUMP
By-pass valve
Inspection and repair of equipment pump
EQUIPMENT CONTROL VALVE
General description
Main pressure relief valve
CONTROL VALVE CONTROLS
Control valve hydraulic control
HYDRAULIC OIL RESERVOIR
CYLINDERS
Boom cylinders
Bucket tilt cylinder
LOAD TRAVEL STABILISER L.T.S. (variant)
Description
Discharging the accumulators
L.T.S. hydraulic diagram
Functional tests of L.T.S. system
Check of L.T.S. accumulator pre-charge
Instructions for the resetting of the accumulator pre-charge
SUPPLEMENTARY HYDRAULIC FUNCTION (variant)

ELECTRICAL SYSTEM
SAFETY RULES
GENERAL LAY-OUT OF ELECTRICAL
LOGIC BOARD
Connections - Relays - Timers
Fuses table
CAB INSTRUMENTS CLUSTER
Indicators on instrument cluster
SWITCH PANEL
TRANSMISSION CONTROL
ATC ELECTRONIC
COLD START AND LINK FUSES
STARTER SWITCH
MAIN SWITCH
SOLENOID SWITCHES
PRESSURE SWITCHES-SENSOR-SWITCHES
ACOUSTIC TRANSDUCERS
MACHINE GROUPS ELECTRIC DIAGRAMS

CAB
GENERAL DESCRIPTION
REPAIR
Cab (removal/installation)
WINDSCREEN WIPERS AND WASHERS
HEATER
Generalities
CAB GLAZING
Disassembly and assembly