New Holland FX25, FX45, FX28, FX38, FX48, FX58 Forage Harvesters Pdf Repair Service Manual (P. Nb. 87051240)

New Holland FX25, FX45, FX28, FX38, FX48, FX58 Forage Harvesters PDF Repair Service Manual (Publication No. 87051240)

The New Holland FX25, FX45, FX28, FX38, FX48 and FX58 Forage Harvesters were developed for contractors and livestock producers who demand reliable chopping performance across long harvesting days. Rather than simply increasing engine power, the FX Series was engineered around efficient crop flow—from the header through the feed rolls, cutterhead, crop processor and blower—to deliver consistent chop quality while handling varying crop conditions throughout the season.

Keeping an FX Series forage harvester operating at peak capacity requires much more than routine maintenance. Feed roll synchronization, shearbar clearance, cutterhead balance, kernel processor adjustment and hydrostatic drive calibration all influence harvesting performance. This OEM Factory Repair Service Manual (Publication No. 87051240) contains factory workshop procedures for complete diagnostics, component rebuilding, performance adjustment and mechanical repair, enabling technicians to restore original machine performance with confidence.

Why the FX Series Remains a Popular Forage Harvester

The FX Series earned its reputation through dependable crop feeding, modular header compatibility and efficient chopping technology. Whether harvesting grass, maize, whole crop cereals or silage, these machines maintain smooth crop flow while allowing operators to change headers for different harvesting applications. Their modular design also makes major workshop servicing significantly easier than earlier forage harvester generations.

Machine Information

Workshop Coverage

Professional Workshop Procedures

• Synchronize feed roll timing after gearbox or bearing replacement.
• Measure and adjust shearbar clearance to restore chopping efficiency.
• Balance the cutterhead after knife replacement to minimize vibration.
• Inspect crop processor roll clearance for proper kernel processing.
• Rebuild hydrostatic drive components using OEM diagnostic procedures.
• Repair blower impeller assemblies and inspect discharge spout wear points.
• Calibrate header lift hydraulics for smooth attachment operation.
• Inspect driveline couplings, shafts and gearboxes before seasonal harvesting.
• Diagnose electronic control faults using factory wiring diagrams.
• Use exploded assembly drawings for accurate component identification.
• Apply OEM torque specifications during every major overhaul.
• Perform complete crop flow and harvesting performance tests before returning the machine to service.

Manual Specifications

Frequently Asked Questions

Which forage harvester models are covered?

This factory repair manual covers the New Holland FX25, FX45, FX28, FX38, FX48 and FX58 Self-Propelled Forage Harvesters.

Does the manual include cutterhead and feed roll servicing?

Yes. It contains complete factory procedures for feed roll timing, cutterhead rebuilding, knife replacement, shearbar adjustment and crop flow calibration.

Are crop processor and hydrostatic drive repairs included?

Yes. The manual provides workshop instructions for kernel processor servicing, hydrostatic transmission diagnostics, hydraulic testing and complete component overhaul.

Does it contain wiring diagrams and troubleshooting information?

Yes. Factory electrical schematics, wiring diagrams, sensor diagnostics and systematic troubleshooting procedures are included.

Who is this repair manual intended for?

It is designed for dealership technicians, agricultural equipment repair workshops, forage harvesting contractors, farm maintenance departments and experienced mechanics servicing the New Holland FX Series.