Twelve models, one factory reference: this 837-page New Holland service manual covers the 250C, 260C, 345C, 345D, 445C, 445D, 545C, 545D, 455D, 555D, 575D, and 655D Construction Tractor Loaders built from 1988 through 1994. Inside: wiring diagrams tracing every circuit from the starting system to the alternator, hydraulic schematics routing every fluid path through the tractor and loader systems, and troubleshooting procedures. You get step-by-step overhaul procedures across 11 sections, covering the 3-cylinder diesel, 4x4 and 8x8 transmissions, rear axle, PTO, steering, and cab, plus exploded views. Torque the cylinder head bolts to 160 ft. lbs. on the final pass and swap the fuel filter every 600 hours. Your machine is down. Bookmarked by section and searchable by keyword, open it on any device and get the right number before you pull a wrench.
Complete the set for your 250–655
What's Inside This New Holland 250–655 Manual
| System | Pages | Key Topics |
|---|
| Production Date Codes | 4 | |
| Serial Number | 5-6 | Production Date codes |
| Safety | 7-9 | |
| Loader Arm Support | 10 | |
| Backhoe Safety Lock | 11 | |
| Engine | 12-84 | 3-Cylinder Diesel Engine, Description and Operation, Overhaul, Cooling System, Troubleshooting, Specifications and Special Tools, Special Tools |
| Fuel System | 85-130 | Fuel System - General, Fuel Injection Pump, Injectors, Air Cleaners, Troubleshooting, Specifications |
| Electrical System | 131-201 | Wiring, Lights, Switches and Instrumentation, Battery, Starting System, Alternator and Regulator, Troublshooting, Specifications |
| Transmission | 202-427 | X 4 Transmission, X 8 Transmission, Transmission Electrical Control Circuit, Troubleshooting, Six by Four Manual Reversing Transmission, Clutch, Specifications, Special Tools |
| Rear Axle and Brake | 428-461 | Rear Axle - Description and Operation, Rear Axle Shaft Assembly - Overhaul, Planetary Reduction Gear Assembly and Axle Houseing - Overhaul, Rear Wheel Brake Assembly - Overhaul |
| Power Take-Off | 462-483 | Independent PTO, Description and Operation, Pressure Regulating Valve and Control Valve - Pressure Tests, Pressure Regulating Valve - Overhaul, Control Valve Overhaul |
| Steering and Front Axle | 484-578 | Steering, Index |
| Hydraulic Systems | 579-741 | Tractor Hydraulic System, Description and Operation, Hydraulic Power Lift, Hydraulic Lift Cylinder Assembly - Overhaul, Hydraulic Lift Cover Assembly - Overhaul |
| Cab | 742-757 | Cab Pressurizer/Heater, Cab Glass Installation, Cab Removal |
| Separating the Tractor | 758-766 | Separating the Tactor Between the Transmission and Engine and the Rear Axle, Separating the Tractor Between the Transmission and Engine |
| Accessories | 767-835 | Rear Tail/Stop Light Kit, Backup Alarm Wiring Kit, Hydraulic Pressure Tapping Maniforld, Reduction Gear Set, Reduction Gearbox Installation Instructions, Brush Guard Kit |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| Modulator control box overload circuit reset time | five seconds | p. 342 |
| Cylinder Head Bolts Torque (final) | 160 ft. lbs. | p. 83 |
| Fuel Filter Change Interval | 600 hours | p. 127 |
| Fuel Filter Element Retaining Bolt Torque | 7 ft. lbs. | p. 129 |
| Engine Oil Filter Change Period (CC API Classification) | 150 hours | p. 80 |
| Engine Oil Filter Change Period (CD API Classification) | 300 hours | p. 80 |
| Hydraulic Filter Specification | 5 Micron | p. 674 |
| Hydraulic Filter Change Interval | 300 hours | p. 674 |
| Battery Capacity (Ampere Hour at 20 Hour Rate) | 128 AH | p. 183 |
| Battery Voltage | 12 | p. 183 |
| Engine Coolant Composition | 50 percent clean water and 50 percent antifreeze, premixed with 5 percent inhibitor | p. 58 |
