Part of the New Holland Repair Manuals.
The seeding control system is where an air drill gets complicated, and it is where this New Holland P2080, P2085 service manual PDF (OEM ID 47648338) spends much of its 672 pages: CAN bus diagnostics, sensor calibration, and rate ECU fault codes, before covering axles, wheels, metering, and the seeding fan. Wiring schematics trace every harness from power connections through ISOBUS terminals and ECU pinouts, with splice tables to match. Hydraulic schematics map the seeding circuit, fan drive, and frame lift, and the fault code chapters walk each DTC from symptom to repair. Set fan motor case drain back pressure to 170 kPa, torque your scraper bolts to 115 N·m (85 lb ft), and swap opener coulters once they wear from 45.7 cm down to 40.6 cm. A drill parked mid-field stalls on one missing number. This bookmarked, text-searchable PDF rides on whatever screen is in your cab, so the spec is wherever the drill is.
What's Inside This New Holland P2080, P2085 Manual
| System | Pages | Key Topics |
|---|---|---|
| Front Axle System | 73-86 | Non-Powered Front Axle |
| Rear Axle System | 87-102 | Non-Powered Rear Axle |
| Hydraulic Systems | 103-218 | Seeding Hydraulic Circuit, Hydraulic Seeding Fan System, Frame Positioning Lifting |
| Wheels | 219-226 | Front Wheels |
| Electrical System Overview | 227-236 | Disk Drill Overview, Mounted Tank Disk Drill, Flow Module, Sensors |
| Harnesses and Connectors | 237-313 | Wire Harnesses, Schematic Legends, Power Connections, CAN Buses, Splice Tables |
| Wire Connectors and Component Diagrams | 314-400 | Connector Pinouts, Component Diagrams, Isobus, ECU Connections, Sensor Wiring |
| Light Harnesses | 401-406 | Light Harness Electrical Schema, Light Harness Components |
| Seeding Control System | 407-472 | Flow Monitoring, Sensor Configuration, Calibration, Troubleshooting |
| Electronic Modules | 479-484 | Electronic Module Problem Solving, CAN Data Bus, Terminator Testing |
| Fault Codes (DTC) | 485-618 | Fault Code Diagnostics, Rate ECU, Sensor Voltage Errors, Clutch Control, CAN Bus Errors |
| Metering System | 619-628 | Product Metering |
| Seeding | 629-672 | Product Handling and Delivery Drive System, Seeding Fan System, Seeding Tool, Air Distribution System |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Opener coulter replacement diameter | 40.6 cm (16 in) | p. 645 |
| Opener coulter diameter | 45.7 cm (18 in) | p. 645 |
| Scraper bolt torque | 115 N·m (85 lb ft) | p. 652 |
| Fan Motor Case Drain Back Pressure | 170 kPa | p. 36 |
| Towing Speed Limit | 32 km/h | p. 18 |
| Fan Motor Operating Pressure | 3500 kPa | p. 109 |
| Fan Motor Case Drain Torque | 27.1 N·m | p. 109 |
| Tire Pressure (Base tires) | 414 kPa | p. 223 |
| Tire Pressure (Rear center section, P2085) | 220 kPa | p. 223 |
| Seed Meter Speed Range | 15 - 110 RPM | p. 624 |
| Fan Speed Limit | 5500 RPM | p. 639 |
| Tire Pressure (Fan) | 411 kPa | p. 99 |
