New Holland Workmaster 55, 66, 75 Tractor Service Repair Manual (51489998)

New Holland Workmaster 55, 66, 75 Tractor Service Repair Manual (51489998)

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New Holland Workmaster 55, 66, 75 Tractor Service Repair Manual (51489998)

• Format: PDF
• Language: English
• Number of Pages : 1245 pages
• Brand: New Holland
• Type of document: Service Manual
• Model: Workmaster 55, 65, 75
• Part No: 51489998
• IMAGES PREVIEW FROM THE MANUAL:

DESCRIPTION:

New Holland Workmaster 55, 66, 75 Tractor Service Repair Manual (51489998)

• CNHI International reserves the right to make improvements in design and changes in specifications at any time without notice and without incurring any obligation to install them on units previously sold. Specifications, descriptions, and illustrative material herein are as accurate as known at the time of publication, but are subject to change without notice.
• Availability of some models and equipment builds varies according to the country in which the equipment is being used. For exact information about any particular product, please consult your NEW HOLLAND dealer.
• NEW HOLLAND is a trademark registered in the United States and many other countries, owned or licensed to CNH Industrial N.V., its subsidiaries or affiliates.
• Any trademarks referred to herein, in association with goods and/or services of companies, other than owned by or licensed to CNH Industrial N.V., its subsidiaries or affiliates, are the property of those respective companies.
• SAFETY PRECAUTIONS
  1. Carry out specified maintenance and repair procedures in full.
  2. While you work, avoid wearing clothes or items that may become caught in moving parts such as rings, watches, jewelry, torn or loose clothing, ties, scarves, buttons, or zips. Use protective helmets, boots, gloves, and goggles.
  3. Do not service the tractor without someone to start the tractor.
  4. Never operate the tractor without sitting in the driver’s seat. Never use the equipment other than in the ways specified.
  5. Never lubricate, service, or make adjustments while the engine is running.
  6. Stop the engine and check whether the hydraulic system is pressurized before you remove covers or caps.
  7. Carry out all service procedures with utmost care and diligence.
  8. Platforms and ladders used in the workshop or in the field for tractor maintenance and repair should be manufactured to respond to local or national conditions.
  9. Disconnect the battery and the start controls when you work. Make sure that equipment to be lifted is under control.
  10. Because of the presence of flammable substances, do not refuel, or check or replenish the battery fluid while you are smoking or near a flame.
  11. When the tractor is in neutral, use chocks or another method when you service the brakes to ensure that the tractor is secure and under control.
  12. Only use the specified tow hitch points. Before you tow, make sure that locking equipment and pins are working. Under load, stand away from chains, cables, and tow hooks.
  13. To prevent static electricity or any kind of spark when you refuel, make sure that the fuel nozzle is in contact with the tank.
  14. To move a non-operational tractor, use a tow truck or a low-body truck if available.
  15. Make sure that the truck wheels are secured when you load or unload the tractor. Place chocks under the tractor wheels after you have loaded the tractor on the truck.
  16. To reduce the risk of electric shock, only use grounded auxiliary power outputs to charge devices, pumps, and similar equipment.
  17. Lift heavy parts with appropriate machinery.
  18. Be aware of those around you when you work with the tractor.
  19. Do not put diesel in open containers.
  20. Never use diesel, solvents, or other flammable liquids to clean parts. Always use flame resistant, non-toxic solvents.
  21. Wear protective goggles when you use pressurized air to clean parts.
  22. In accordance with national regulations, limit air pressure to 2,1 bar.

TABLE OF CONTENTS:

New Holland Workmaster 55, 66, 75 Tractor Service Repair Manual (51489998)

Maintenance …………………………………………………………………… 00
[00.100] New unit pre-delivery operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00.1
[00.150] Start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00.2
Engine…………………………………………………………………………… 10
[10.001] Engine and crankcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.1
Clutch …………………………………………………………………………… 18
[18.110] Clutch and components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.1
Transmission…………………………………………………………………… 21
[21.114] Mechanical transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.1
[21.112] Power shuttle transmission. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.2
Four-Wheel Drive (4WD) system ………………………………………….. 23
[23.101] Mechanical control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23.1
[23.304] Four-Wheel Drive (4WD) gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23.2
Front axle system …………………………………………………………….. 25
[25.100] Powered front axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25.1
Rear axle system……………………………………………………………… 27
[27.100] Powered rear axle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.1
Power Take-Off (PTO) ……………………………………………………….. 31
[31.101] Rear mechanical control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.1
[31.104] Rear electro-hydraulic control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.2
[31.114] Two-speed rear Power Take-Off (PTO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.3
Brakes and controls ………………………………………………………….. 33
[33.202] Hydraulic service brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33.1
Hydraulic systems…………………………………………………………….. 35
[35.000] Hydraulic systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.1
[35.116] Three-point hitch cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.2
[35.204] Remote control valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.3
Steering…………………………………………………………………………. 41
[41.101] Steering control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.1
[41.200] Hydraulic control components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.2
[41.216] Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.3
Cab climate control …………………………………………………………… 50
[50.100] Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50.1
[50.200] Air conditioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50.2
Electrical systems …………………………………………………………….. 55
[55.000] Electrical system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.1
[55.051] Cab Heating, Ventilation, and Air-Conditioning (HVAC) controls. . . . . . . . . . . . . . . . . . . 55.2
[55.100] Harnesses and connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.3
[55.201] Engine starting system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.4
[55.301] Alternator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.5
[55.302] Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.6
[55.408] Warning indicators, alarms, and instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.7
[55.512] Cab controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.8
[55.DTC] FAULT CODES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.9
Front loader and bucket……………………………………………………… 82
[82.100] Arm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.1
[82.300] Bucket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.2
[82.AAA] Front loader and bucket generic sub-group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.3
Platform, cab, bodywork, and decals ……………………………………… 90
[90.150] Cab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90.1