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New Holland Workmaster 25S Compact Tractor Pdf Repair Service Manual (p. Nb. 51421067)
New Holland Workmaster 25S Compact Tractor Pdf Repair Service Manual (p. Nb. 51421067)
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New Holland Workmaster 25S Compact Tractor PDF Repair Service Manual (P. NB. 51421067) – Tier 4B Final
From loader work around livestock buildings to mowing, landscaping, snow removal and property maintenance, the New Holland Workmaster 25S is expected to perform every day without downtime. Unlike larger agricultural tractors, this compact machine combines a hydrostatic transmission, four-wheel drive, and integrated hydraulic systems within a tightly packaged chassis, making accurate repair procedures essential whenever major service is required.
The official OEM Factory Repair Service Manual (Publication No. 51421067) provides dealership-level repair information for the Tier 4B Final Workmaster 25S. Whether replacing hydrostatic drive components, diagnosing electrical faults, rebuilding the front axle, or servicing the hydraulic system, every procedure follows factory specifications with detailed illustrations, wiring diagrams, torque values, and troubleshooting charts.
Machine Information
| Machine Specification | Details |
|---|---|
| Model Covered | New Holland Workmaster 25S |
| Equipment Type | Sub-Compact Utility Tractor |
| Emission Standard | Tier 4B (Final) |
| Gross Engine Power | 24.7 HP (18.4 kW) |
| PTO Power | 17.2 HP (Hydrostatic Transmission) |
| Engine Configuration | 3-Cylinder Naturally Aspirated Diesel |
| Engine Displacement | 1.26 L (77.3 cu in) |
| Transmission | 2-Range Hydrostatic (HST) |
| Drive System | Mechanical Four-Wheel Drive (4WD) |
| Hydraulic System | Open-Center with Dual Gear Pumps |
| Implement Hydraulic Flow | 4.6 GPM (17.4 L/min) |
| Steering Hydraulic Flow | 2.1 GPM (8.0 L/min) |
| Three-Point Hitch Lift Capacity | 992 lb (450 kg) |
| Rear PTO | Independent 540 RPM |
| Mid PTO | Independent 2500 RPM |
| Fuel Tank Capacity | 6.6 gal (25 L) |
| Typical Applications | Property Maintenance, Loader Work, Landscaping, Mowing, Light Construction & Estate Management |
Inside This Factory Workshop Manual
- Complete engine disassembly and inspection procedures
- Hydrostatic transmission diagnosis and overhaul
- 4WD driveline and driveshaft servicing
- Front differential and final drive repairs
- Rear axle and differential servicing
- PTO clutch and drive system repairs
- Brake adjustment and component replacement
- Hydraulic pump testing and pressure diagnostics
- Three-point hitch calibration procedures
- Power steering repairs
- Electrical wiring diagrams and circuit testing
- Harness connector identification
- Operator platform and body panel removal
- Special service tools and workshop specifications
Why Professional Technicians Use This Manual
The Workmaster 25S integrates hydrostatic drive, compact steering geometry, hydraulic control valves and electronic safety circuits into a small chassis where component access can be challenging. This OEM service manual explains removal sequences, inspection limits, adjustment procedures and reassembly specifications, helping technicians avoid unnecessary parts replacement while restoring factory performance after repairs. :contentReference[oaicite:1]{index=1}
Manual Technical Specifications
| Manual Information | Details |
|---|---|
| Publication Number | 51421067 |
| Manual Type | OEM Factory Repair Service Manual |
| Edition | 1st Edition – April 2018 |
| Language | English |
| File Format | |
| PDF Pages | 925 |
| PDF File Size | 97.37 MB |
| Model Coverage | Workmaster 25S Tier 4B Final |
| Searchable PDF | Yes |
| Bookmarks | Included |
| Electrical Wiring Diagrams | Included |
| Hydraulic Schematics | Included |
| Troubleshooting Procedures | Included |
| Exploded Assembly Views | Included |
| Torque Specifications | Included |
| Delivery | Instant Digital PDF Download |
Frequently Asked Questions
Does this manual cover the hydrostatic transmission?
Yes. It includes complete hydrostatic drive diagnosis, disassembly, inspection and assembly procedures.
Are electrical wiring diagrams included?
Yes. Factory electrical schematics and connector information are provided for accurate troubleshooting.
Is loader hydraulic servicing covered?
The manual covers the tractor's hydraulic system, pumps, valves and related hydraulic circuits used to operate compatible implements and attachments.
Does this manual include front axle and 4WD repairs?
Yes. It contains procedures for the driveshaft, powered front axle, differential, steering knuckles and final drives.
Is this an official OEM workshop manual?
Yes. It is the official New Holland Factory Repair Service Manual with Publication Number 51421067.
Who is this manual designed for?
It is ideal for dealership technicians, independent repair shops, equipment rental businesses and owners performing advanced workshop repairs on the Workmaster 25S.
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