New Holland TT45A, TT50A Tractor Service Manual
683 pages · Publication 87655297
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What's inside
From the manual's own table of contents: 44 sections, 313 entries. See sample pages (PDF, 710 KB)
SECTION 90 - BODYWORK52 topics
- Federal Emissions Warranty
- California Emission Control Warranty Statement
- General Instructions
- Important Notice
- Shimming
- Rotating Shaft Seals
- O-Rings
- Sealers
- Bearings
- Spring Pins
- Precautionary Notice
- Equipment Notice
- Spare Parts Notice
- General Notices
- Health and Safety Precautions
- General Workshop Tools and Equipment
- Legal Aspects
- Lubricants and Greases
- Precautionary Statements
- Safety
- The Tractor
- Driving the Tractor
- Operating the Tractor
- Operating the PTO
- Servicing the Tractor
- Diesel Fuel
- Universal Symbols
- Safety Decals
- Instructional Decals
- Ecology and the Environment
- Minimum Hardware Tightening Torques
- General Specifications
- Lubricants and Coolants
- Specifications
- Metric Bolt Torque Specifications
- Special Tools
- Compression Test and Tools
- Description of Operation
- Troubleshooting
- Cylinder Head and Valve Train Components
- Cylinder Block Assembly
- Separating the Tractor at the Clutch Housing/Engine -- 8 x 12 Transmission
- Separating the Tractor at the Engine/Frame
- Attaching the Tractor at the Clutch Housing/Engine -- 8 x 12 Transmission
- Overhaul
- Engine
- Fuel Injector and Glow Plug
- Oil Pressure Switch
- Temperature Sending Switch and Alternator
- Fan, Water Pump and External Oil Tube
- Air Inlet Manifold
- Rocker Arm Shaft and Support Bracket
10 101 Cylinder Head2 topics
- Valve Tappet
- Fuel Shutoff Solenoid
10 106 Timing Gears and Cam Shaft1 topic
- Oil Suction Pipe and Strainer
10 103 Backplate and Oil Seal14 topics
- Crankshaft -- Main Bearings
- Valve Seats
- Valves
- Valve Guides
- Valve Springs
- Rocker Arms
- Push Rods
- Cylinder Head
- Cylinder Block
- Pistons
- Piston Rings
- Connecting Rods
- Connecting Rod Bearing
- Pistons, Rings, and Connecting Rod
10 103 Crankshaft -- Main Bearing and Thrust Washer4 topics
- Crankshaft
- Bearing (Bushing)
- Main Bearing
- Port Block
10 106 Timing Gear1 topic
- Camshaft
10 103 Crankshaft and Bearing Holder2 topics
- Rear Oil Seal and Backplate
- Flywheel
10 105 Pistons and Connecting Rods2 topics
- Oil Suction Pipe and Suction Strainer
- Oil Sump
Show all 44 sections
10 106 Idler Gear, Oil Pump, and Injection Timing5 topics
- Timing Gear Cover
- Crankshaft Pulley
- Fuel Injection Pump
- Hydraulic Oil Pump
- Power Steering Pump
10 101 Head Gasket Selection1 topic
- Cylinder Head
10 106 Valve Clearance5 topics
- Valve Cover
- Water Pump and Cooling Fan
- External Oil Tube
- Glow Plug and Connector
- Fuel Injector
10 218 Fuel Piping2 topics
- Alternator and Temperature Sender Switch
- Exhaust Manifold
10 304 Description of Operation -- Engine Lubrication System3 topics
- Engine Oil Pressure
- Oil Pressure Relief Valve
- Oil Consumption
10 400 Description of Operation -- Cooling System3 topics
- Maintenance
- Coolant
- Radiator Cap
10 414 Cooling Fan6 topics
- Overhaul -- Cooling System
- Specifications
- Standards for Adjusting Injection Pump
- Torque Specifications
- Special Tools
- Description of Operation
10 242 Injection Pump3 topics
- Troubleshooting -- General
- Troubleshooting -- Fuel Injectors
- Troubleshooting -- Governor
10 244 Fuel Variation Mechanism1 topic
- Delivery Valve Assembly
10 214 Delivery Valves3 topics
- Calibration/Adjustments
- Fuel Screw/High Idle
- Description of Operation
10 218 Injectors32 topics
- Engine Breather Valve
- Troubleshooting -- Engine Breather Valve
- Tightening Torques
- Sealants
- Sectional Views -- Clutch Assembly
- Sectional Views -- Clutch Plate
- Troubleshooting
- Description and Operation
- Operation
- Overhaul
- Clutch Pedal
- PTO and Clutch Lever Cross Shaft
- Transmission/PTO Release Bearing Assembly
- Clutch Pedal Setting
- Clutch Assembly
- Release Fingers
- Release Lever Height Adjustment
- Sealants
- Special Tools
- Sectional View
- Transmission Assembly
- Troubleshooting
- Description and Operation
- x 2 Transmission
- General Recommendations for Overhauling Operations
- Overhaul
- Transmission Assembly
- Sealant Locations
- Input Shaft
- Transmission Input Shaft Axial Play Adjustment
- Reverse Gear
- Pinion Shaft
21 130 26 External Components27 topics
- Gear Shift Lever
- Reduction Gearbox Operation
- Front Reduction Gearbox
- Pinion to Ring Gear and Differential
- Special Tools
- Sectional Views
- Ring Gear and Differential Assembly
- Pinion, Ring Gear and Differential
- Description and Operation
- Ring Gear and Differential Housing
- Ring Gear/Pinion Backlash and Total Preload Setting
- Differential Assembly
- Final Drive
- Sectional View
- Final Drive
- Rear Axle and Final Drive
- Final Drive Housing
- Description and Operation
- Main PTO Levers and Internal Linkages
- Main PTO Shafts
- Rear PTO Shaft Assembly
- PTO Brake
- Sectional Views -- Brake Control Assembly
- Brake Pedals and External Linkages
- Parking Brake Linkage
- Brake Assembly
- Brake Pedal Free Play Adjustment
35 000 Introduction and Circuit Identification3 topics
- Open Center Hydraulic Circuit and Mechanical Lift
- Schematic View of Hydraulic System
- Hydraulic Circuit Diagram
35 000 Specifications20 topics
- Description of Operation -- Hydraulic Pump and Filter
- Hydraulic Pump and Filter
- Hydraulic Pump
- Tightening Torque
- Sealants
- Hydraulic System
- Position Control Operation
- Float Operation
- Hydraulic Control Valve
- Control Valve Operation
- Control Valve Internal Linkage
- Use of Position Control Lever
- Mechanical Lift Assembly
- Rear Lift External Controls
- Rear Lift Internal Controls
- Lift Arm Shaft
- Control Valve Assembly
- Control Valve Adjustments
- Hydraulic System Pressure Check
- Hydraulic Pump Testing
41 000 Specifications7 topics
- Special Tools
- Troubleshooting
- System Testing
- Operation
- Hydrostatic Steering Reservoir
- Steering Motor
- Two Wheel Drive Steering Cylinder
44 000 Specifications70 topics
- Track Adjustments
- Sectional View -- Front Axle Support
- Sectional View -- Stub Assembly
- Front Axle Assembly
- Front Wheel Hub
- Spindle Assembly
- Description of Electrical System
- Component Location and Function
- Wiring Harnesses
- Grounds
- Battery and Fuses
- Battery
- Fuse Block
- Fusible Link
- Electrical System Components — Description and Testing
- Key Switch
- Light Switch
- Terminal Identification
- Hazard Light Switch
- Turn Signal Switch
- Transmission Range Safety Switch
- PTO Safety Switch
- Park Brake Safety Switch
- Seat Safety Switch
- Transmission Clutch Safety Switch
- Diodes
- Relays
- Hazard Flasher/Turn Signal Control Module
- Operator Safety Module
- Park Brake Safety Alarm (Buzzer)
- Engine Sensors
- Engine Oil Pressure Sender
- Engine Coolant Temperature Sending Unit
- Fuel Shutoff Solenoid
- Air Filter Restriction Switch
- Fuel Level Sender
- Lighting
- Head Lamp
- Bulb Replacement
- Complete Electrical Schematic
- Safety Start Circuit (Operator Present)
- Safety Start Circuit (Operator Not Present)
- Safe Operation (Operator Present)
- Safe Operation (Operator Not Present) (PTO “OFF”)
- Safe Operation (Operator Not Present) (PTO “ON”)
- Lighting Circuit
- Hazard Lighting Circuit
- Right Turn Signal Circuit
- Left Turn Signal Circuit
- Charging Circuit
- Instrument Panel
- Instrument Panel, Gauges, and Warning Lights
- Component Identification
- Component Testing and Replacement
- Instrument Panel Troubleshooting
- Alternator Specifications
- Alternator Troubleshooting
- Charging System
- Alternator
- Preliminary Alternator Tests
- Alternator Component Testing and Inspection
- Starter Motor Specifications
- Starter Motor Troubleshooting
- Starting System
- Description of Operation
- Starter Components
- Electrical Testing
- Engine Hood Panel Assembly
- Rear Wheel Fenders
- Roll-Over Protection (ROPS) Bar
Inside this manual
Real pages from this service manual (683 pages). Open the sample pages (PDF, 709 KB)
- Specifications, page 80: SECTION 10 -- ENGINE -- CHAPTER 1
- Troubleshooting, page 170: SECTION 10 -- ENGINE -- CHAPTER 2
- Diagram, page 530: SECTION 55 -- ELECTRICAL SYSTEM -- CHAPTER 1
- Color page: SECTION 18 -- CLUTCHES -- CHAPTER 1
- Color page: SECTION 41 -- STEERING SYSTEMS -- CHAPTER 1
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the TT45A, TT50A are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
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This is a service manual
Here's how it compares to the other manual types.
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 683 pages
Quantity one is the manual described above.
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Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).