New Holland TM 120 / TM 130 / TM 140 / TM 155 / TM 175 / TM 190 tractors, repair e-manual

Content

General section

• General instructions and health and safety

Engine

• Separating and removing the engine
• Separating front axle and front support from engine
• Separating engine and front support from transmission
• Engine removal
• Specifications
• Greases and sealants
• Tightening torques
• Special tools
• Fault finding
• Description and operation
• Engine overhaul
• Injection pump timing check
• Engine disassembly and overhaul
• Cylinder head, valves and related parts
• Hydraulic tappets--adjustment
• Front cover and timing gears
• Oil pan
• Flywheel
• Rear cover plate
• Oil pump
• Oil pressure relief valve
• Camshaft, tappets and camshaft bearings
• Pistons and cylinder block
• Crankshaft
• Crankshaft front seal installation
• Engine compression test
• Cooling system

Fuel system

• Bosch VE type mechanically controlled fuel injection system
• Bosch VE type pump timing and installation
• Bosch VP electronically controlled fuel injection system
• Bosch VP electronically controlled fuel injection system
• Injection system bleeding
• Electric lift pump
• Turbocharger
• Air cleaner
• Main fuel tank
• Auxiliary fuel tank
• Crankcase ventilation
• Foot throttle cable
• Hand throttle cable

Clutches

• Specifications
• Tightening torques
• Sectional views
• Special tools
• Description and operation
• Troubleshooting
• Hydraulic control

Transmission system

• Semi-powershift transmission (range command)
• Power command 30 and 40 kph transmission, 120 - 155 models
• Power command transmission, 175 - 190 models (full Powershift)
• Dual command transmission (HI-LO)
• Shuttle command (mechanical transmission)
• Specifications
• Tightening torques
• Special tools
• Sectional views
• Description and operation
• Troubleshooting
• Removal - installation
• Housing adjustments

Drive lines (fwd electro-hydraulic clutch)

• Drive lines-tractors with dual command and shuttle command transmissions
• Drive Lines-Tractors with range command and power command ( full powershift) transmissions
• Specifications
• Tightening torques
• Special tools
• Sectional views
• Troubleshooting
• Description and operation
• Hydraulic flow diagrams
• Drive shaft
• Electro hydraulic clutch

Mechanical front axle

• Specifications
• Tightening torques
• Special tools
• Description and operation
• Troubleshooting
• Standard axle
• Suspended axle
• Hub cassette seal
• Front axle overhaul
• Dog clutch differential lock
• Multi wet plate differential lock
• Crown Wheel / differential
• Pinion shaft
• Swivel pin and potentiometer
• Steering and drive wheels

Terraglide (front axle suspension)

• Specifications
• Tightening torques
• Description and operation
• System schematics
• Suspended front axle
• Error code listing
• Suspension cylinder
• Suspension control valve

Mechanical rear wheel drive

• Specifications
• Tightening torques
• Special tools
• Sectional views
• Description and operation
• Fault finding
• Rear axle housing
• Pinion and crown wheel
• Hydraulic pump idler gear bearing
• Hydraulic differential lock
• Final drive case
• Drive wheel shaft

Power take-off

• Specifications
• Tightening torques
• Special tools
• Sectional views
• Hydraulic flow diagrams
• Fault finding
• Ground speed interlock switch

Hydraulic front lift and power take off

• Specifications
• Torques
• Front hydraulic lift
• Front P.T.O
• Hydraulic and electrical connections

Braking system

• Specifications
• Tightening torques
• Sectional views
• Description and operation
• Operation, power brake coloured diagrams
• Fault finding
• Tasks before carrying out brake overhaul
• Pedal
• Front brake booster
• Hydraulic brake system, air bleeding
• Parking brake

Pneumatic trailer brakes

• Specifications
• Tightening torques
• Fault finding
• Removal and installation
• Pressure testing

Hydraulic systems

• Introduction
• Introduction and circuit identification
• Low pressure hydraulic circuits
• general hydraulic fault finding

Variable flow hydraulic pump

• Description
• Special tools
• Specifications
• Tightening torques
• Description and operation
• Hydraulic circuit operation
• Fault finding
• Pump pressure and flow testing
• Charge pressure test
• Steering pump / low pressure pump
• Hydraulic pump leak

Mechanical rear hydraulic lift

• Specifications
• Tightening torques
• Special tools
• Sectional views
• Description and operation
• Troubleshooting

Closed centre remote control valves

• Special tools
• Specifications
• Tightening torques
• Fault finding and pressure testing
• Electro-hydraulic remote valve fault code list
• oil flow

Open centre remote control valves

• Specifications
• Special tools
• Sectional views
• Description and operation
• Removal - installation

External lift rams

• Specifications
• Sectional views
• Description and operation
• Removal - installation
• Disassembly - reassembly

Hydraulic pressure testing

• Introduction
• Specifications
• Hydraulic pump
• Fault finding
• Transmission low pressure warning light on
• Intake filter restriction light on
• Power steering
• Trailer brakes
• Hydraulic lift
• Low pressure
• High pressure
• Steering pump
• Steering test
• Steering relief valve
• Power command transmission clutch
• Trailer brake
• Trailer brake valve
• PTO clutch lubrication
• Brake booster valve

Fixed displacement gear pumps

• Specifications
• Tightening torques
• Special tools
• Sectional views
• Troubleshooting
• Removal - installation

Trailer brake auxiliary valves

• Specifications
• Torques
• Special tools
• Description and operation
• Pressure testing

Hydraulically adjustable right hand lift and top link cylinders

• Specifications
• Sectional views
• Tightening torques
• Description and operation
• Removal - installation

Mid mount remote valves

• Specifications
• Torque values
• Description and operation
• Mid mount valve

Steering systems

• Specifications
• Tightening torques
• Special tools
• Description and operation
• Fault finding
• Steering motor
• Steering column
• Two wheel drive steering cylinder
• Four wheel drive steering cylinder

Front axle and wheels

• Specifications
• Tightening torques
• Special tools
• Description and operation
• Troubleshooting
• Sectional views
• Removal - installation
• Front wheel camber and toe-in

Air conditioning

• Specifications
• Tightening torques
• Special tools
• Safety precautions
• Description and operation
• Fault finding and system testing
• Leak testing, charging, discharging and system flushing
• Component overhaul (excluding compressor)

Electrical introduction

• Description
• Fuses and relays
• Controllers
• Diagnostic connectors
• System precautions for battery charging and welding
• Temporary wiring repair
• System diagrams

Electronic management unit (EMU)

• Introduction
• Worklamp operation
• Functions controlled by the electronic management unit
• Touch panels
• Calibrations
• Brake switch
• Error codes

Instrument cluster

• Introduction
• Senders and sensors
• Programming central LCD
• Programming performance monitor
• Serviceability
• Fault codes
• Diagnostic memory
• Instrument panel

Starting system

• Specifications
• Tightening torques
• Description and operation
• Fault finding
• System testing
• Removal and installation
• Overhaul

Charging system

• Specifications
• Tightening torques
• Description and operation
• Fault finding
• Removal and installation

Battery

• Specifications
• Description and operation
• Removal and installation
• Battery charging
• Common causes of battery failure

Wiring diagrams

• Wiring diagram circuit descriptions (all models)
• How to use the linear wiring diagrams
• Symbol
• Component identification and wiring diagram location key
• Full powershift transmission
• Semi-powershift
• Dual command transmission
• Shuttle command transmission
• Wire identification key

Fault codes

• Introduction
• Special tools
• Wiring harness repairs
• Digital multi-meter - basic operation
• Electrical test procedures
• Circuit components
• Fault code ’logic’ and display areas
• Displaying and clearing fault codes
• Fault code lists

Electrical system

• Diagnostic ’h’ routines
• Connectors and harnesses full powershift
• Main harness connectors
• Connectors and harnesses semi-powershift
• Connectors and harnesses dual command
• Calibration procedures
• Wiring diagrams full powershift
• Wiring diagrams semi-powershift models
• Fault codes

Cab removal

• Torques
• Special tools
• Cab removal and installation
• Suspension adjustment

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