New Holland Wheel Loader LW230.B service manual

Description New Holland Wheel Loader LW230.B service manual

New Holland Wheel Loader LW230.B pdf service & repair manual

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

MANUAL CONTENT:
ENGINE
IDENTIFICATION DATA
GENERAL SPECIFICATATIONS OF ENGINE SERIES C
ENGINE SUPPORTS
COOLING SYSTEM (FAN DRIVE SYSTEM)
Cooling system hydraulic motors
Fan hydraulic system pump
Fan hydraulic control block

TRANSMISSION
GENERAL DESCRIPTION
TORQUE CONVERTER - TRANSMISSION
TORQUE
TRANSMISSION - TORQUE CONVERTER PUMP
TRANSMISSION
Power train diagram
Transmission control valve
AUTOMATIC TRANSMISSION CONTROL SYSTEM
Electronic unit ATC for automatic transmission control
TRANSMISSION SELECTOR
"SHIFT-DOWN" Device
"KICK-DOWN" Function (with manual and automatic gearshift)
"FORWARD/REVERSE" Function switch (Variant)
OIL CIRCUIT
DISASSEMBLY TRANSMISSION
REASSEMBLY TRANSMISSION
TROUBLESHOOTING GUIDE
Troubleshooting guide
Transmission
Parking brake
STANDARD VALUES FOR
Torque converter
Control valve
Transmission
Accumulator
Parking brake
TIGHTENING TORQUES OF MAIN FIXTURE
PROP SHAFT

BRAKES SYSTEM
GENERAL DESCRIPTION
OPERATION
Operating conditions
DISC
BRAKE PEDAL
BRAKES/POWER SYSTEM PUMP
PARKING BRAKE CONTROL VALVE
PARKING BRAKE
Manual release procedure
Disc parking brake operation
Brake
OTHER COMPONENTS
Service brakes accumulator
Check valve
BRAKE PEDAL VALVE HYDRAULIC CONNECTIONS
DIAGNOSTICS
Brake control pressure testing
Minimum and maximum accumulator recharge pressure
Parking brake engagement test
Accumulator pre-charge test
Instructions for the restorantion of the service brake accumulators precharge
Bleeding the brake system
Brake disc wear check

STEERING SYSTEM
GENERAL DESCRIPTION
STEERING GROUP
STEERING VALVE
STEERING SYSTEM PUMP
STEERING VALVE CONTROL LINKAGE
Leverage installation procedure
Operation
STEERING CYLINDERS
Removal
Disassembly and Reassembly
Installation
STEERING EMERGENCY CIRCUIT
Components of emergency steering

BUCKET BOOMS AND FRAME
GENERAL DESCRIPTION
Bucket
Bucket automatic positioner
Setting the boom maximum height
FRAME
Frame central pivot
BUCKET STOPS

EQUIPMENT HYDRAULIC SYSTEM
GENERAL DESCRIPTION
HYDRAULIC SYSTEM PUMP
Inspection and repair of equipment pump
EQUIPMENT CONTROL VALVE
General description
Main pressure relief valve
Safety and anti-cavitation valves
CONTROL VALVE CONTROLS
Description
Pilot valve
Equipment single lever control (variant)
Description of operation
3rdfunction control for single lever pilot valve
HYDRAULIC OIL RESERVOIR
CYLINDRES
Booms cylinder
Bucket tilt
L.T.S. ANTI-PITCHING SYSTEM (VARIANT)
Discharge of the accumulators
L.T.S. hydraulic diagram
Functional tests of L.T.S. system
Check of L.T.S. accumulator precharge
Instructions for the resetting of accumulator precharge
SUPPLEMENTARY HYDRAULIC FUNCTION (VARIANT)
TROUBLESHOOTING

ELECTRICAL SYSTEM
SAFETY RULES
GENERAL LAYOUT OF THE ELECTRICAL SYSTEM
MAIN CONNECTORS
FUSES
CAB INSTRUMENTS CLUSTER
INDICATORS ON INSTRUMENT CLUSTER
SWITCH PANEL
AUTOMATIC TRANSMISSION
Gearshift selector
ATC electronics controller
ATC relay controller diagram
ATC controller diode board diagram
Initialisation procedure of the auxiliary reverse device
MAIN SWITCH
STARTER SWITCH
SOLENOID SWITCHES AND DIODES
Cold starting relay
Starter relay (K21)
Electric cut-off relay (K22)
Back-up alarm relay
Diodes K23 - K25
Timer (K24)
Retaining solenoid swtch 90 AMP
Single lever control solenoids relay
Single lever control diodes box
LTS relay
LTS timer
Cab relay board
Relay board electric diagram (CAB)
PRESSURE SWITCHES-SENSOR-SWITCHES
Stop lights pressure switch
Transmission cut-off pressure switch
Brakes accumulator oil low pressure switch
Air cleaner clogging pressure switch
Engine oil lo pressure switch
Steering main circuit low pressure switch
Emergency steering circuit low pressure switch
Coolant maximum temperature switch
Coolant temperature sensor
Parking brake pressure switch
Transmission oil temperature sensor
Transmission oil max. temperature switch
Proximity sensor (Accelerator pedal)
Bucket positioner proximity sensor
Boom max. height kick-off proximity sensor
Transmission speed sensor
Note for the installation of sensor
Fuel level sensor
EQUIPMENT CONTROL SINGLE LEVER PILOT VALVE
ACOUSTIC TRANSDUCERS
Horn
Back-up alarm
CLIMATE SYSTEM
Climate system diagram
Climate system electric diagram

CAB
GENERAL DESCRIPTION
REPAIR
Cab (removal/installation)
WINDSCREEN WIPERS AND WASCHERS
HEATER
Generalities
CAB GLAZING
Disassembly and assembly
AIR CONDITIONING UNIT
Operating instructions
Technical data
Service precautions
Tool connections
Discharging
Refrigerant charging
Leak inspection
TROUBLESHOOTING