Part of the New Holland Repair Manuals.
The New Holland 790CP service manual PDF strips this pick-up header down system by system: 267 pages under OEM ID 47779318, running from the main gearbox and PTO shaft through hydraulics, wheels, electrical, and the feed auger. Wiring diagrams and connector pinouts anchor an electrical section that takes up more than a quarter of the book, tracing header height control, feeder engagement, and lighting circuits harness by harness. Torque tables for standard hardware and hydraulic fittings sit up front where you can find them fast. Set the picking belt tracking to its initial 42 mm (1.7 in) on the 12 ft belt, and check the height sensor against its 1000 ohm plus or minus 20% spec before you order a replacement. Rain is coming and there is nobody to call. The answer rides in your pocket: a bookmarked, text-searchable PDF that goes wherever the header does.
What's Inside This New Holland 790CP Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 4-35 | Foreword - Important Notice Regarding Equipment Servicing, Safety Rules, Safety Rules - Personal Safety, Safety Rules - Ecology and the Environment, Safety Signs |
| Main Gearbox and Drive | 36-45 | Power Take-Off Shaft |
| Hydraulic Systems | 46-71 | Header or Attachment Height System, Feeder Engagement System |
| Frames and Ballasting | 72-93 | Frame Hydraulic Hold Down, Mechanical Float |
| Wheels | 94-109 | Carrying and Transport Wheels |
| Electrical Systems | 110-185 | Electrical System, Harnesses and Connectors, Hydraulic System Control, Header Height Control, Feeding Control System, External Lighting |
| Attachments/Headers | 186-253 | Attachment/Header Feed Auger, Belt Feeding |
| Platform, Cab, Bodywork, and Decals | 254-267 | Machine Shields and Guards |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Mounting torque | 1.35 N·m (12 lb in) | p. 160 |
| Maximum Voltage | 12 V | p. 160 |
| Resistance | 1000 Ω +/- 20% | p. 160 |
| Auger weight | 544 kg (1200 lb) | p. 196 |
| Picking belt tracking initial setting (12 ft) | 42 mm (1.7 in) | p. 249 |
| Picking belt tracking initial setting (15 ft) | 52 mm (2 in) | p. 249 |
| Belt pick up solenoid power consumption | 18 W | p. 50 |
| Belt pick up solenoid duty rating | 100% | p. 50 |
| Header weight (12 ft) | 1401.6 kg | p. 31 |
| Header weight (15 ft) | 1451.5 kg | p. 31 |
| Auger tube diameter | 406 mm | p. 31 |
| Auger flighting height | 127 mm | p. 31 |
