New Holland 12HS, 14HS, 16HS, 18HS Sickle Header Pdf Repair Service Manual (p. Nb. 47851907)

New Holland 12HS, 14HS, 16HS, 18HS Sickle Header PDF Repair Service Manual (Publication No. 47851907)

A clean cut begins with a properly serviced header. The New Holland 12HS, 14HS, 16HS and 18HS Sickle Headers were developed for efficient hay and forage harvesting, combining a heavy-duty sickle cutterbar, hydraulic reel controls, durable feed auger and reliable conditioning components to deliver consistent crop flow in varying field conditions. Whether harvesting alfalfa, grass hay or mixed forage, maintaining the header to factory specifications is essential for clean cutting performance and reduced downtime. This official workshop manual provides the professional repair procedures used by New Holland dealership technicians.

This OEM Factory Repair Service Manual (Publication No. 47851907) covers the New Holland 12HS, 14HS, 16HS and 18HS Sickle Headers. It includes detailed instructions for troubleshooting, inspection, hydraulic testing, electrical diagnostics, cutterbar servicing, reel adjustments, auger repairs, complete component overhaul and final operational verification. Every procedure follows official New Holland workshop standards to ensure reliable harvesting performance.

Designed for Clean Cutting and Uniform Crop Feeding

Built for modern hay and forage operations, the HS Series combines a precision sickle cutting system with synchronized reel operation and an efficient feed auger to deliver smooth crop transfer into the conditioning system. The rugged header frame, hydraulic controls and adjustable cutting components help operators maintain uniform windrows while reducing crop losses across different field conditions.

Machine Information

Factory Workshop Coverage

Typical Workshop Operations

• Adjust cutterbar timing for clean and efficient cutting.
• Replace worn knife sections, guards and hold-down clips.
• Repair hydraulic reel lift and reel speed control systems.
• Service feed auger bearings and drive components.
• Diagnose electrical faults using OEM wiring diagrams.
• Inspect hydraulic hoses and pressure circuits before harvest.
• Restore proper crop feeding through reel and auger adjustments.
• Repair conditioning roll drive components where equipped.
• Use exploded factory illustrations during component rebuilding.
• Apply official torque specifications during reassembly.
• Perform complete operational testing before returning the header to field service.

Manual Specifications

Frequently Asked Questions

Which header models are included in this repair manual?

This workshop manual covers the New Holland 12HS, 14HS, 16HS and 18HS Sickle Headers (Publication No. 47851907).

Does this manual include cutterbar and reel repairs?

Yes. It provides complete repair procedures for the sickle cutterbar, reel assembly, feed auger, hydraulic drives and related header components.

Are hydraulic and electrical troubleshooting procedures included?

Yes. The manual contains hydraulic schematics, electrical wiring diagrams, system diagnostics and factory troubleshooting procedures.

Can this manual be used for complete header rebuilding?

Yes. It explains disassembly, inspection, measurement, overhaul, adjustment, assembly and operational testing of all major header systems.

Who should use this OEM workshop manual?

This repair manual is ideal for New Holland dealership technicians, agricultural equipment workshops, commercial hay producers and experienced owners maintaining HS Series Sickle Headers.