Part of the New Holland Repair Manuals.
All 890 pages of this New Holland FX25–FX58 series repair manual PDF (OEM #87051240) exist for one reason: putting your FX25, FX28, FX38, FX45, FX48, or FX58 forage harvester back in the field. You get wiring diagrams for the starter, hydrostatic control, and CPU circuits, hydraulic schematics tracing the work, steering, and Hi-Flow systems, and a heavy troubleshooting section that decodes machine and Caterpillar error messages plus CAN identifiers. Step-by-step procedures walk you through splitting the main drive gearbox, pulling the cutterhead, and rebuilding the blower gearbox. Torque the cylinder head bolts to 150 Nm and hold knife-to-side-plate clearance under 3.2 mm; the factory numbers are all here. No more chasing electrical gremlins with a multimeter and a prayer. Bookmarked chapters and a full text layer let you jump straight to any spec right from your phone in the shop.
What's Inside This New Holland FX25–FX58 Series Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 1-32 | General Instructions, Safety Regulations |
| Engine | 33-40 | Cylinder Head Bolts, Valve Clearance, Fuel Injectors, Removal and Installation of Fuel Injection Pump, Timing, Cooling System |
| Live P.T.O | 41-78 | Removal of the Main Drive Gearbox (Removal of Shields and Doors, Removal of P.T.O. Shafts, Removal of the Battery Box, Removal of the Fuel Reservoir, Removal of the Main Drive Belt Assembly, Removal of the Hydraulic and the Hydrostatic Pump Assembly, Replacing the Rubber Damper on the Engine Output Shaft, Splitting the Main Drive Gearbox, Disassembly and Assembly of the Components in the Rear Half of the Gearbox, Disassembly and Assembly of the Front Half of the Gearbox, Removal and Disassembly of Hydraulic Clutch, Removal and Installation of the Pressure Hose, Replacing Clutch Plates, Replacing the Seals in the Clutch, Removal and Installation of the Clutch Driven Shaft, Installation of the Clutch Into the Gearbox Half, Connecting the Two Gearbox Halves Together, Installation of the Main Drive Gearbox, Installing the Main Drive Gearbox, Installation of the Hydraulic and the Hydrostatic Pump Assemblies, Installation of the Main Drive Belt Assembly, Installation of the Fuel Reservoir, Installing the Battery Box and the Batteries, Installing the PTO Shafts, Starting Up the Forage Harvester) |
| Transmission | 79-92 | Lubrication, Gearbox Shafts and Shifting Diagram, Disassembly of Traction Gearbox, Assembly of Traction Gearbox |
| Wd Lines | 93-98 | Removal From the Base Unit, Disassembly of 4WD Angle Gearbox, Assembly of 4WD Angle Gearbox, Installation on Base Unit |
| Front Mechanical Drive | 99-104 | Lubrication, Disassembly and Assembly of Final Drives |
| Hydrostatic Transmission | 105-120 | Lubrication, Hydrostatic Circuit and Components, Filling and Bleeding the Hydrostatic System, Hydrostatic Pump - Characteristics, Operation of the Multifunction Valve |
| Brakes and Control | 121-128 | Parking Brake Adjustment, Brake Linings, Brake Cylinders, Bleeding the Brakes, Disassembly and Assembly of Brake Shoes and Discs |
| Hydraulic System | 129-236 | General, Work Hydraulics Attachment Height Control, Work Hydraulics Base Unit, Steering Hydraulics, Low Pressure Hydraulics, Hi-Flow Hydraulics |
| Cab Climate Control | 237-246 | Correct Use of the Air Conditioning System, Storage Maintenance, Air Conditioning Circuit and Component Specifications, Compressor Clutch Replacement, Ventilation Unit |
| Electrical Circuits | 247-266 | Wiring Diagram Standards, Color Codes, Wire Identification, Fuses, Symbols, Connectors |
| Wiring Diagrams Fx Na | 267-524 | Starter Circuit, Engine Throttle Control, Hydrostatic Control, Four-Wheel Drive, Electronic System, Instrument Panel, Cpu Inputs and Display |
| CAN Network Basics | 525-542 | CAN Network Layout, Electronic Components, CAN Spy Mode, Decimal and Hexadecimal Counting, Fault Finding Routine |
| Calibration | 543-568 | Machine Calibration with Laptop, Pdt Tool Operation, Serial Number Input, Hydrostatic Pump Calibration, Air Conditioning Calibration |
| Software Update | 569-576 | Software Update with Laptop, Software Update with Pdt Tool, Installation Guide |
| Troubleshooting | 577-762 | Error Messages Overview, Machine Error Messages, Caterpillar Error Messages, List of CAN Identifiers, Detailed Analysis per Function |
| Product Feed | 763-840 | Removal and Installation of Lower Feed Rolls, Inspection Between Upper Feed Rolls and Cutterhead, Flip Down Upper Feed Rolls |
| Cutterhead | 841-878 | Splitting of Components, Attaching and Detaching the Attachment, Removal - Installation of Chopper Body with A-Frame, Removal - Installation of Chopper Body with Hydraulic Jack |
| Ejection | 879-890 | Inspection Between Cutterhead and Blower, Removal and Installation of Blower, Removal and Installation of Blower Gearbox, Disassembly and Assembly of Blower Gearbox |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Sharpening stone electric motor coil resistance | 0.4-1 ohm | p. 627 |
| Bearing housing bolts torque | 240 Nm | p. 865 |
| Maximum allowed distance between the outer end of a knife and the chopper body side plate | 3.2 mm | p. 864 |
| Mounting bolts 2 torque | 180 Nm | p. 876 |
| Cylinder head bolt tightening torque | 150 Nm | p. 34 |
| Injector mounting bolts torque | 21 Nm | p. 35 |
| Rubber damper fastening screws torque | 400 Nm | p. 53 |
| Traction gearbox oil capacity | 15 litres | p. 80 |
| Final drive gearbox oil capacity | 5 litres | p. 100 |
| Hydrostatic transmission reservoir capacity | 38 litres | p. 107 |
| Hydrostatic transmission system capacity | 93 litres | p. 107 |


















