New Holland CX720, CX740, CX760, CX780, CX820, CX840, CX860, CX880 Combine Pdf Repair Service Manual (P. Nb. 86630597)

New Holland CX720, CX740, CX760, CX780, CX820, CX840, CX860, CX880 Combine PDF Repair Service Manual (Publication No. 86630597)

Every extra tonne harvested depends on a combine that can thresh, separate and clean grain efficiently from the first field until the last. The New Holland CX720, CX740, CX760, CX780, CX820, CX840, CX860 and CX880 Combines were developed for medium and large-scale grain producers, combining a large-diameter threshing drum, multi-drum separation system, high-capacity cleaning shoe and spacious grain tank to maximize harvesting productivity in demanding field conditions. The CX800 models feature six straw walkers for increased separation capacity, while the CX700 models utilize a five-walker design for excellent performance across a wide range of crops.

Harvesting thousands of acres places continuous stress on the threshing drum, straw walkers, sieves, unloading auger, hydrostatic transmission, hydraulic circuits and electronic monitoring systems. This OEM Factory Repair Service Manual (Publication No. 86630597) provides dealership-level procedures for diagnostics, calibration, inspection and complete component overhaul, helping technicians restore factory harvesting performance while minimizing costly downtime during harvest.

Engineered for High-Capacity Grain Harvesting

The CX Series combines use New Holland's conventional threshing and separation design, featuring a large 750 mm threshing drum followed by a rotary separator and high-capacity straw walker system. This layout improves grain separation while protecting straw quality. Combined with large grain tanks, powerful unloading systems and advanced electronic controls, these machines are designed for harvesting wheat, barley, corn, canola, soybeans and other high-yield crops efficiently.

Machine Information

Factory Workshop Coverage

Professional Workshop Procedures

• Adjust concave clearance for different crop varieties and moisture conditions.
• Synchronize threshing drum and separator drive components after repairs.
• Inspect straw walker bearings and crank assemblies before harvest.
• Calibrate cleaning fan speed and sieve settings to reduce grain loss.
• Service unloading auger gearboxes and drive mechanisms.
• Test hydrostatic transmission pressure using OEM procedures.
• Diagnose electronic harvesting sensors through factory wiring diagrams.
• Repair hydraulic pumps, steering circuits and header lift systems.
• Use exploded assembly drawings during complete combine rebuilding.
• Apply OEM torque specifications throughout every major repair.
• Inspect feeder house chains and drive components for wear.
• Complete harvesting performance tests before returning the combine to service.

Manual Specifications

Frequently Asked Questions

Which combine models are covered by this repair manual?

This OEM factory workshop manual covers the New Holland CX720, CX740, CX760, CX780, CX820, CX840, CX860 and CX880 Combine Harvesters.

Does the manual include threshing and cleaning system repairs?

Yes. It covers the threshing drum, concaves, rotary separator, straw walkers, cleaning shoe, sieves, fan adjustment and grain handling systems.

Are hydraulic and electrical systems included?

Yes. The manual contains hydraulic schematics, wiring diagrams, electronic diagnostics, controller testing and complete troubleshooting procedures.

Does the manual include transmission and engine repairs?

Yes. It includes hydrostatic transmission servicing, engine diagnostics, cooling system repairs, final drives and complete powertrain overhaul procedures.

Who should use this repair manual?

This workshop manual is designed for New Holland dealership technicians, agricultural equipment repair workshops, commercial harvesting contractors and experienced mechanics servicing CX Series combines.