New Holland TM 115 / TM 125 / TM 135 / TM 150 / TM 160 tractors, repair e-manual

Content

General section

• General instructions and health and safety

Engine

• Specifications
• Fuel test plans
• Tightening torques
• Special tools
• Greases and sealants
• Fault finding
• Description and operation
• Engine stripdown – general
• Engine removal and installation
• Engine disassembly and overhaul:– cylinder head
• Front cover and timing gears
• Oil pan removal
• Connecting rods, bearings pistons and rings
• Cylinder block overhaul
• Main bearings and flywheel
• Rear cover plate
• Oil pump and oil filter support
• Crankshaft
• Camshaft, tappets and camshaft bearings
• Engine compression test
• Fuel system components:– fuel pump – removal, timing and installation
• Injectors
• Electric lift pump
• Turbocharger
• Air cleaner
• Fuel tank
• Throttle cable
• Cooling system components: radiator removal
• Thermostat removal, testing and installation
• Temperature warning sender
• Viscous clutch assembly
• Fan blade removal and installation
• Fan belt and tensioner removal and installation
• Water pump removal, overhaul and installation

Clutches

• Specifications
• Tightening torques
• Sectional views
• Special tools
• Description and operation
• Troubleshooting
• Clutch removal – installation
• Hydraulic control assembly removal – installation
• Hydraulic control assembly disassembly – reassembly

Range command transmission overhaul

• Specifications
• Tightening torques
• Special tools
• Sectional views
• Description and operation
• Troubleshooting
• Removal – installation – overhaul

Range command transmission fault finding

• Introduction
• Error codes
• Error codes and fault finding
• Limp Home procedure
• Pressure testing
• Calibrations

Dual command transmission overhaul

• Specifications
• Tightening torques
• Special tools
• Sectional views
• Description and operation
• Troubleshooting
• Removal – installation – overhaul

Dual command transmission fault finding

• Introduction
• Calibrations
• Pressure testing
• Limp home procedure
• Error codes
• Error code fault finding flow diagrams

Shuttle command transmission

• Specifications
• Tightening torques
• Special tools
• Sectional views
• Description and operation
• Troubleshooting
• Mechanical transmission housing removal – installation – overhaul

Power command transmission

• Specifications
• Tightening torques
• Special tools
• Transmission cross section
• Description and operation and power flows
• Transmission removal and installation
• Transmission overhaul – disassembly
• Component disassembly – clutch pack exploded views and adjustments
• Transmission overhaul – reassembly clutch calibrations
• Pressure testing
• Error codes and fault finding
• Limp home tool

Four wheel drive axle transfer box

• Specifications
• Tightening torques
• Special tools
• Sectional views
• Description and operation
• Troubleshooting
• Hydraulic flow diagrams
• Removal – installation – overhaul

Four wheel drive front axle

• Specifications
• Tightening torques
• Special tools
• Sectional views
• Description and operation
• Troubleshooting
• Standard axle
• Suspended axle
• Supersteer axle
• Hub cassette seal replacement
• Front axle overhaul – all options
• Dog clutch differential lock
• Multi wet plate differential lock
• Crown wheel / differential
• Pinion shaft
• Pinion shaft adjustment / installation
• Crown wheel adjustments
• Swivel pin and potentiometer
• Axle reassembly
• Checking the alignment of steering and drive wheels

Rear axle

• Specifications
• Tightening torques
• Special tools
• Sectional views
• Description and operation
• Troubleshooting
• Removal – installation – overhaul

Rear power take off system

• Specifications
• Tightening torques
• Special tools
• Sectional views
• Description and operation
• Hydraulic flow diagrams
• Troubleshooting
• Removal – installation – overhaul
• Ground speed interlock switch adjustment

Front lift and power take off system

• Specifications
• Torques
• Description and operation
• Fault finding
• Overhaul
• Hydraulic and electrical connections
• Engine side rails

Braking system

• Tractor brakes
• Pneumatic trailer brakes

Hydraulic systems

• Introduction and circuit identification
• Closed centre load sensing high pressure hydraulic circuit
• Open centre high pressure hydraulic circuit
• Low Pressure hydraulic circuits

Hydraulic pump assembly with variable displacement closed centre load sensing

• Special tools
• Specifications
• Tightening torques
• Description and operation
• Hydraulic circuit operation
• Fault finding
• Pump pressure and flow testing overhaul
• Charge pressure valve
• Charge pressure filter dump valve
• Steering flow control valve
• Pressure and flow compensating valve
• Pump removal and installation
• Steering pump overhaul
• Charge pump overhaul
• Variable flow piston pump overhaul
• Pump drive gear and bearing overhaul

Fixed displacement gear type pumps

• Specifications
• Tightening torques
• Special tools
• Sectional views – description and operation
• Removal – installation – overhaul

Hydraulic lift assembly with electronic draft control

• Specifications
• Special tools
• Tightening torques
• Description and operation
• Principal of draft control
• Components
• Operation of draft control
• Hydraulic operation of lift control valve
• Trouble shooting and calibration
• Electronic draft control error codes – power command tractors
• Electronic draft control error codes – range/dual command tractors
• Electronic draft control valve – removal and installation
• Load sensing pin replacement
• Hydraulic lift cover – removal and installation

Hydraulic lift assembly with top link sensing

• Specifications
• Tightening torques
• Special tools
• Sectional views
• Description and operation
• Troubleshooting
• Removal – installation – overhaul

Remote control valves with closed centre hydraulics

• Special tools
• Specifications
• Tightening torques
• Description and operation
• Oil flow in neutral
• Oil flow in raising (cylinder extend)
• Oil flow in lowering (cylinder retract)
• Oil flow in float
• Operation of detent pressure regulating valve
• Operation of two or more control valves simultaneously
• Fault finding and pressure testing
• Overhaul
• Individual valve section removal
• Complete valve stack removal
• Remote valve disassembly

Remote control valves with open centre hydraulics

• Specifications – tightening torques
• Special tools
• Sectional views
• Description and operation
• Removal – installation – overhaul

Hydraulic trailer brakes

• Sectional views
• Description and operation
• Troubleshooting

Assist rams

• Specifications
• Sectional views
• Description and operation
• Removal – installation – overhaul

Hydrostatic steering systems

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

Two wheel drive axle

• Specifications
• Tightening torques
• Special tools
• Description and operation
• Troubleshooting
• Sectional views
• Removal – installation – overhaul
• 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)
• Compressor removal and installation
• Compressor overhaul

Electrical introduction

• Electrical system and fuses
• System precautions for battery charging and welding
• Temporary wiring repair

Electronic management unit (EMU)

• Introduction
• Worklamp operation
• Functions controlled by the electronic management unit
• Electronic management unit with terralock
• Touch panels
• Calibrations
• Brake switch adjustment
• Removal and installation
• Error codes

Electronic instrument cluster

• Introduction
• Senders and sensors
• Programming central LCD
• Programming performance monitor
• Serviceability
• Fault code charts
• Fault finding flow charts
• Diagnostic memory

Analogue electronic instrument cluster

• Introduction
• Senders and sensors
• Serviceability

Analogue instrument cluster

• Introduction
• Senders, sensors and switches
• Servicability

Wiring diagrams

• Wiring diagram circuit descriptions (all models)
• How to use the linear wiring diagrams
• Symbols
• Component identification and wiring diagram location key
• Wiring Diagrams
• Power command transmission, with cab
• Range command transmission, with cab
• Dual command transmission, with cab
• Shuttle command transmission, with cab
• Wire identification key

Wiring diagrams circuit description

• Starting, charging, thermostart, fuel injection pump
• Transmission circuits
• Electronic draft control
• Four wheel drive and differential lock
• Power take off
• Front suspension
• Cab accessories
• Main lamps, indicators and hazards
• Work lamps
• Trailer braking system circuits
• Sensors / senders
• Wipers and washers
• Diagnostic connectors
• Processor feed and ground connections
• Air–conditioning and heating

Electrical component testing

• Thermostart device
• Coolant level sensor
• Coolant temperature sender
• Alternator
• Engine oil pressure switch
• Engine oil pressure sender
• Air filter restriction switch
• Batteries
• Water in fuel sensor
• Diff. lock pressure switch
• 4WD pressure switch
• Low transmission oil pressure switch
• Brake fluid level switch
• Handbrake switch
• Fuel sender
• Oil filter restriction switch (open centre)
• PTO speed sensor
• Forward / reverse shuttle lever
• Clutch pedal potentiometer
• Radar
• Range potentiometers
• Transmission speed sensors
• Dual command lever selector
• Range command lever selector
• PWM Valves A,B,C,D and E
• Pressure switches – dual command
• Forward / reverse potentiometer – dual command
• Transmission side cover solenoids
• 40 degree switch – CCLS pump
• Intake filter restriction switch – CCLS pump
• Low charge pressure switch
• Steering angle potentiometer
• Brake pressure switches
• Transmission oil temperature sender
• Load sensing pins
• EDC control unit
• EDC raise and lower solenoids
• Lift arm potentiometer
• Transmission range clutch pressure switch
• Foot throttle potentiometer
• Engine torque / RPM sensor
• Electronic draft control (EDC) panel
• Multi–function switch, lights, indicators, horn
• Multi–function switch, wipers and washers

Diagnostic ’H’ routines

• Introduction
• Power command transmission “H” routine
• Range command transmission “H” routine
• Dual command transmission “H” routine
• Electronic draft control “H” routine

Connectors and harnesses

• Wiring harnesses
• Main connectors
• Wire identification and colour coding
• Lighting harness
• Front main (engine) harness
• Rear main (transmission) harness
• Cab main harness, all models

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