Part of the New Holland Repair Manuals.
This 826-page New Holland HW300, HW320, HW340 Speedrower Repair Manual (OEM #86589300) covers the self-propelled windrower from front tires to header drive. Inside you get wiring diagrams for the electronic, air-conditioning, lighting, engine, and charging systems, hydraulic schematics for header lift, tilt, and flotation trim, and a full hydrostatic transmission section covering the pump, relief valve, charge pressure, and servo cylinder. You'll also find planetary final drive and brake teardown steps, plus a full troubleshooting and DTC section for chasing engine and electrical faults. Torque the planetary final drive cap screws to 224 N·m (165 ft lbs) and the special flange nuts to 244 N·m (180 ft lbs), fill the hydraulic reservoir with 134D fluid, and follow the exact start-up sequence before running the pump or motor again. Quit flipping through forum threads for numbers that don't match your machine. Bookmarked by section so you can jump straight to the system you're working on, right from your phone in the shop.
What's Inside This New Holland HW300, HW320, HW340 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Electrical Systems | 5-212 | Windrower Electronic System, Air-Conditioning Electrical System, Lighting Electrical Systems, Engine Electrical Systems, Charging Electrical System |
| Secton 2 - Hydraulic Systems | 213-374 | HW300/320 Header Drive, HW340 Header Drive, Header Lift, Hydraulic Header Tilt and Flotation Trim |
| Hydrostatic System | 375-454 | Hydrostatic Transmission, Hydrostatic Pump, Relief Valve, Charge Pressure, Servo Cylinder, Neutral Standing Adjustment |
| Final Drives | 455-476 | Coupler, Spindle, Bearings, Ring Gear, Sun Gear, Planetary Carrier |
| Brake System | 477-502 | Parking Brake, Brake Disc, Brake Actuator, Brake Housing, Pintle Arm, Neutral Locking Disc |
| Engine | 503-764 | Cylinder Head Assembly, Camshaft Assembly, Crankshaft Assembly, Pistons, Fuel System, Turbocharger |
| Air Conditioning | 765-826 | Introduction |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic fluid type | 134D hydraulic fluid | p. 255 |
| Planetary final drive cap screws torque | 224 N·m (165 ft lbs) | p. 459 |
| Special flange nuts torque | 244 N·m (180 ft lbs) | p. 459 |
| Thermostat Opening Temperature | 81°C (178°F) | p. 611 |
| Thermostat Fully Open | 94°C (201°F) | p. 611 |
| EIC-switched power fuse | 10A | p. 10 |
| Alternator (Bosch) output | 95-amp | p. 109 |
| Hydrostatic pump relief setting | 345 bar (5000 PSI) | p. 444 |
| Cylinder bore compression @ 200 RPM | 25.5 bar (370 PSI) | p. 505 |
