Part of the New Holland Repair Manuals.
Rebuilding the hydrostatic drive or tearing into the front axle? This 740-page New Holland Boomer 20, Boomer 25 service manual PDF (OEM #84557214) details the exact factory procedures for your compact tractor. You get complete wiring diagrams, detailed hydraulic schematics for the three-point hitch, and extensive troubleshooting charts to track down phantom electrical faults. Open any section and find exploded views covering every inch of the final drive hubs, steering knuckles, and electrohydraulic PTO. Adjust the main hydrostatic relief valve to 19.5 MPa and verify the engine crankcase holds exactly 4.2 liters of oil before turning the key. Stop throwing expensive parts at a dead machine. Download this bookmarked file, pull it up on your shop tablet, and get back to work.
What's Inside This New Holland Boomer 20, Boomer 25 Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 6-35 | International Symbols, Safety Rules, Basic Instructions Hardware, Torque Specification Tables, General Specification, Product Identification |
| Engine - 10 | 36-63 | Engine and Crankcase, Engine Lubrication System, Engine Cooling System |
| Front Axle System - 25 | 64-121 | Powered Front Axle, Front Bevel Gear Set and Differential, Final Drive Hub, Steering Knuckles, And Shafts |
| Rear Axle System - 27 | 122-149 | Rear Bevel Gear Set and Differential, Final Drive Hub, Steering Knuckles, And Shafts |
| Hydrostatic Drive - 29 | 150-251 | Transmission and Steering Hydrostatic Control, Hydrostatic Transmission, Reservoir, Cooler, And Lines, Pump and Motor Components |
| Power Take-Off (PTO) - 31 | 252-319 | Rear Mechanical Control, Rear Electrohydraulic Control |
| Brakes and Controls - 33 | 320-345 | Parking Brake / Parking Lock - Static Description, Mechanical Service Brakes - General Specification, Mechanical Service Brakes - Overview, Brake Package |
| Hydraulic Systems - 35 | 346-441 | Fixed Displacement Pump, Three-Point Hitch Control Valve, Three-Point Hitch Cylinder, Remote Control Valves, Reservoir, Cooler, And Filters, Safety and Main Relief Valves |
| Hitches, Drawbars, and Implement Couplings - 37 | 442-451 | Rear Three-Point Hitch - Dynamic Description |
| Steering - 41 | 452-527 | |
| Wheels - 44 | 528-541 | |
| Electrical Systems - 55 | 542-731 | |
| Platform, Cab, Bodywork, and Decals - 90 | 732-740 |
