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Part of the New Holland Repair Manuals.
This is the factory repair manual for the New Holland CX700 and CX800 series combines. It works through the machine the way New Holland numbers it, then follows the crop path through product feeding, threshing, separation, cleaning and grain storage. The engine section gives the full specifications and wear limits for the 6-cylinder 7500 cc diesel, and the electrical section is by far the largest, running from page 1020 to page 3190 across sixteen chapters of circuits, control systems, diagnostics and schematics.
What's Inside This New Holland CX700, CX800 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 67-82 | Shop Safety, Standard Tightening Torques, Approved Fluids and Consumables, Machine Identification |
| Engine | 83-412 | 6-Cylinder 7500 Cc (458 Cu in) Diesel, Specifications and Wear Limits, Cylinder Head and Valve Train, Pistons and Cylinder Block, Compression Test, Cooling and Lubrication, Engine Overhaul |
| Live PTO | 413-498 | Live Power Take-Off Drive and Clutch, PTO Shafts and Couplings, PTO Overhaul |
| Transmission | 499-552 | Transmission and Its Controls, Gear Selection, Drive Shafts, Transmission Service |
| Front Mechanical Drive | 553-590 | Front Drive Axle and Final Drives, Hubs and Bearings, Axle Rebuild |
| Hydrostatic System | 591-696 | Hydrostatic Pump and Drive Motors, Charge Circuit, Ground Drive Control, Hydrostatic Pressure Testing and Pump Overhaul |
| Brakes and Control | 697-720 | Service Brakes, Parking Brake, Brake Circuit and Bleeding |
| Hydraulic Systems | 721-812 | Hydraulic Pump and Supply Circuit, Control Valves, Header and Reel Circuits, Unloading Auger Circuit, Pressure Testing and Pump Overhaul |
| Steering Axle | 813-900 | Steering Rear Axle, Steering Circuit and Cylinder, Hubs, King Pins and Bearings |
| Climate Control | 901-1019 | Heating, Ventilation and Air Conditioning, Compressor and Condenser, Refrigerant Handling, Charging and Leak Testing |
| Electrical Systems: Circuits and Components (Chapters 1-10) | 1020-1798 | Electrical System Overview, Starting and Charging Circuits, Harness and Connector Diagrams, Sensors and Switches, Instruments and Lighting, Fuses and Relays |
| Electrical Systems: Control Systems (Chapters 11-12) | 1799-2602 | Electronic Control Modules, Machine Control Systems, Their Circuits and Calibration |
| Electrical Systems: Diagnostics and Schematics (Chapters 13-16) | 2603-3190 | Circuit Test Procedures, Fault Finding, And the Full Electrical Schematics for Each Build |
| Product Feeding | 3191-3246 | Feeder House and Elevator, Stone Trap, Feed Beater and Drive, Reversing Drive |
| Threshing | 3247-3296 | Threshing Cylinder and Concave, Concave Clearance and Cylinder Speed, Threshing Drive |
| Separation | 3297-3358 | Straw Walkers and Separation Grate, Separation Drive and Bearings |
| Cleaning Systems | 3359-3568 | Cleaning Shoe, Sieves and Chaffer, Cleaning Fan and Drive, Returns System |
| Grain Storage | 3569-3654 | Grain Tank and Level Sensors, Unloading Auger and Drive, Unloading Control |
| Accessories | 3655-3754 | Fitted Accessories and Their Service Points |
| Platform and Cab | 3755-3810 | Cab and Platform Assembly, Bodywork Panels, Glazing, Operator Seat and Controls |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine | 6 cylinders, 7500 cc (458 cu in) | |
| Bore and stroke | 111.8 mm (4.4 in) x 127 mm (5.0 in) | |
| Compression ratio | 17.0:1 | |
| Compression at 200 rpm cranking speed | 25.5 bar (375 lbf/in2) | |
| Rated speed | 2100 rpm | |
| Low and high idle speed | 1300 rpm and 2205 rpm | |
| Crankcase capacity with filters | 23 litres (24.3 US qts) | |
| Starter motor | 4.3 kW, 12 volt | |
| Water pump and ventilator speed | 3859 rpm and 1531 rpm | |
| Cylinder bore diameter | 111.778 to 111.803 mm (4.4007 to 4.4017 in) |
New Holland CX700, CX800 Common Problems This Manual Covers
The engine is down on power, smokes, or is hard to start.
Run the compression test before you take anything apart. A healthy engine makes 25.5 bar (375 lbf/in2) at a 200 rpm cranking speed, and the variation between cylinders matters as much as the absolute figure. Then check the bore against its 111.778 to 111.803 mm diameter and its 0.025 mm taper and out-of-round repair limits. Confirm rated speed at 2100 rpm and high idle at 2205 rpm before you suspect the fuel system.
Manual Section: SECTION 10 - ENGINEThe combine is slow on the ground or will not hold speed on a slope.
Ground drive is hydrostatic and has its own section at pages 591 to 696, separate from the transmission. It covers the pump and drive motors, the charge circuit and the ground drive control, with the pressure test procedure. Test charge pressure first, because a low charge makes the whole drive feel tired without any single component looking wrong.
Manual Section: SECTION 29 - HYDROSTATIC SYSTEMAn electrical fault, and the schematic you are looking at does not match the machine.
Use the right chapter. Section 55 is sixteen chapters deep: circuits and components in chapters 1 to 10, the electronic control systems in 11 and 12, and the diagnostics with the full per-build schematics in 13 to 16. A drawing that does not match the harness in front of you usually means you are in a chapter written for a different build. Find the correct schematic, then trace to the connector and test there.
Manual Section: SECTION 55 - ELECTRICAL SYSTEMS: Diagnostics and Schematics (Chapters 13-16)Frequently Asked Questions
Which combines does this manual cover?
The CX700 and CX800 series. The machine sections, the crop path and the electrical system are shared, and the manual calls out the model where a component or a setting differs.
What are the engine specifications?
A 6-cylinder diesel of 7500 cc (458 cu in) with a 111.8 mm (4.4 in) bore and a 127 mm (5.0 in) stroke and a 17.0:1 compression ratio. Rated speed is 2100 rpm, low idle 1300 rpm and high idle 2205 rpm. The crankcase holds 23 litres (24.3 US qts) with filters and the starter motor is a 4.3 kW 12-volt unit.
What compression should a healthy engine make?
25.5 bar (375 lbf/in2) at a cranking speed of 200 rpm. The cylinder bore should measure 111.778 to 111.803 mm, with a 0.025 mm taper repair limit and a 0.127 mm wear limit, and the same limits apply to out-of-round.
How much of the manual is electrical?
Most of it. Section 55 runs from page 1020 to page 3190 across sixteen chapters. Chapters 1 to 10 cover the circuits and components, chapters 11 and 12 the electronic control systems, and chapters 13 to 16 the diagnostics and the full schematics for each build.
How big is the manual and can I search it?
It runs to 3810 pages in English and is a searchable, printable PDF. Search the text, print the pages you need for the bench, and keep the rest on a laptop in the workshop.
Is this New Holland CX700, CX800 Repair Manual a digital download?
You get a 3810-page searchable PDF (182 MB) that downloads instantly after checkout. Open it on your laptop, tablet, or phone, and bring it right to the shop floor.
Are there any print restrictions on this New Holland CX700, CX800 manual?
Yes, print as many copies as you want, and there are no restrictions. Many mechanics print the section they need and bring it to the shop floor.
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