New Holland TM120, TM130, TM140, TM155, TM175, and TM190 Tractor Workshop Manual

The New Holland TM Series Repair Manual covers TM120, TM130, TM140, TM155, TM175, and TM190 tractors. This February 2006 revision carries document reference 604.55.111.02 and combines the handbook's five volumes.

Bookmarks and Wiring-Diagram Detail

Search and navigation: Body text supports PDF search, and embedded bookmarks lead to sections, repair procedures, and diagnostic topics. Many labels within wiring diagrams are not searchable; small pin numbers and wire codes require zooming.

One printable, English-language 7,683-page PDF, including one cover page, 26 opening contents pages, 108 notes pages, and 31 otherwise blank pages. Revised chapters are integrated into the handbook.

Engine, Drivetrain and Control-System Repair

These selected coverage highlights outline the workshop content. Other topics include air-cleaner service and throttle-cable replacement and adjustment; this is not a complete contents list.

• Engine repair: Step-by-step tractor splitting, engine removal, cylinder-head and bottom-end overhaul, hydraulic tappet adjustment, lubrication and cooling-system repair, and compression testing.

• Fuel injection: Bosch VE and VP pump removal and timing, fuel-system bleeding, injector testing and overhaul, electric lift-pump diagnosis, and turbocharger service.

• Transmission service: Range Command, Power Command, Dual Command, and Shuttle Command removal, internal repair, and adjustment, with applicable pressure tests, clutch and synchronizer calibration, and limp-home procedures.

• Hydraulics and steering: Closed-center load-sensing and open-center circuit testing, pump overhaul, Electronic Draft Control, mechanical and electro-hydraulic remote valves, and hydrostatic steering repair.

• Axles, brakes and PTO: Standard, suspended, and SuperSteer front-axle overhaul; rear axle, differential, final-drive, tractor and trailer brake, front lift, and front/rear PTO service.

• Electrical diagnosis: Linear wiring diagrams, connector and harness views, fault-code charts, diagnostic H-routines, starting and charging-system tests, starter and alternator overhaul, and battery testing.

• Cab and air conditioning: Cab removal and suspension adjustment, plus A/C fault finding, leak testing, refrigerant recovery and charging, and component service.

The repair instructions specify authorized workshops and the listed special equipment; this manual is suited to technicians equipped for internal overhaul and electronic diagnosis.

Model Families and Electrical Build Changes

Power Command repair differs between the TM120–TM155 and TM175/TM190 groups. Variable-flow pumps, rear axles, service brakes, external lift rams, and rear PTO assemblies also have model-specific sections.

Harness and connector revisions follow the serial breaks listed above. Range Command tractors from ACM265009 have separate processor-reduction wiring and diagnostic sections. These distinctions help match pin locations, controller information, and fault charts to the tractor being serviced.

Later-build fault diagnosis: Chapters 14F and 14G are included in this PDF, with fault lists, circuit checks, and diagnostic procedures. They cover the specified later builds, including Shuttle Command electronic-management faults and later Range Command systems with Vistronic fan diagnostics.

Engine Overhaul and Fuel-System Scope

The engine chapter distinguishes work possible with the engine installed from piston, cylinder-block, and crankshaft repair requiring removal. Valve and timing-gear work is supported by inspection limits, tightening sequences, and sealant references.

Fuel procedures distinguish mechanically controlled Bosch VE pumps from electronically controlled Bosch VP pumps. Injector opening-pressure, spray-pattern, and leakage tests are included. Turbocharger service treats the balanced center housing and rotating assembly as a replacement unit, without internal disassembly of that assembly.

Disturbing the factory-set timing-pin bushing compromises the reference needed for accurate injection-pump timing. The piston-removal instructions also warn that an unremoved cylinder ridge can damage the ring lands of reusable pistons.

Engine-oil change intervals and certain cooling-system capacity data are referred to the separate Operator's Manual.

Transmission and Hydraulic Test Detail

Transmission chapters connect power-flow explanations with clutch-pack service, shaft end-play and bearing adjustments, valve overhaul, controller calibration, and operational checks.

Hydraulic testing distinguishes low-pressure supply from high-pressure demand. Procedures address load-sense response, charge pressure, pump flow and leakage, steering, lift rams, and transmission clutch pressures, with separate pump repair sections for the two model families.

Illustrated references include engine lubrication and timing-gear diagrams, Power Command cross-sections and power-flow drawings, variable-displacement pump sectional views, Terraglide suspension schematics, and color-coded power-brake diagrams.

Controller Calibration and Workshop Equipment

The electrical chapters address transmission, EDC, suspended-axle, PTO, EHR, engine-control, and instrument-cluster faults. Calibration procedures cover controller configuration, EDC lift-lever/arm potentiometers and valve solenoids, ground-speed and steering-angle inputs, and EHR lever calibration and valve renumbering.

Terraglide diagnostics and suspended-axle calibration accompany the suspension repair material. PTO torque-sensor and clutch calibration are included for TM175 and TM190 configurations.

Tool lists identify tractor splitting kit 297471, engine support brackets 297617, crankshaft timing pin 297672, and hydraulic pressure test kit 292870. Pullers, seal installers, and gauges are specified, with dimensioned drawings for selected locally fabricated tools.

Tractor splitting, suspended-axle, hydraulic, and brake work requires suitable support, pressure relief, and electrical isolation. The A/C section specifies a certified refrigeration specialist and appropriate recovery equipment.

Examples from Valve and Lubrication Specifications

Engine inspection data list intake valve stem-to-guide clearance of 0.023–0.069 mm and exhaust clearance of 0.048–0.094 mm.

The lubrication specifications give minimum engine oil pressure of 0.83 bar at low idle and 2.41 bar at rated engine speed, both at normal operating temperature.