Part of the New Holland Repair Manuals.
This is the factory repair manual for the New Holland Workmaster 50, Workmaster 60 and Workmaster 70 tractors, Tier 4B (final), part number 47866583. It works through the tractor system by system: engine, clutch, transmission, four-wheel drive, axles, PTO, brakes, hydraulics, steering, wheels, electrical and cab. The hydraulic section names the pump by make and gives its displacement, its speed limit and its flow at a stated pressure, and just under half the book is electrical, most of that harness drawings and the fault-code tables with their guided tests.
What's Inside This New Holland Workmaster 50, Workmaster 60, Workmaster 70 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction and Standard Torques | 9-20 | How to Use the Manual, Shop Safety, Standard Tightening Torques, Approved Fluids and Consumables |
| Engine | 21-82 | Engine and Crankcase, Fuel System and Filtration, Air Cleaner and Intake, Exhaust Aftertreatment, Cooling System and Fan Drive, Engine Removal and Overhaul |
| Clutch | 83-116 | Clutch and Components, Release Mechanism, Pedal Free Play, Clutch Removal and Refitting |
| Transmission | 117-198 | Gearbox and Shuttle, Range Gears and Synchronisers, Shift Controls, Transmission Strip-Down and Reassembly |
| Four-Wheel Drive (4WD) System | 199-208 | 4WD Engagement Clutch and Control, Drive Shaft, 4WD Service |
| Front Axle System | 209-284 | Driven Front Axle, Bevel Drive and Differential, Hub Reducers, Steering Knuckles, Axle Rebuild |
| Rear Axle System | 285-332 | Rear Bevel Gear Pair and Differential, Differential Lock, Final Drives, Bearing Preload and Backlash |
| Power Take-Off (PTO) | 333-362 | PTO Clutch and Brake, Speed Selection and Output Shaft Change, PTO Control, PTO Overhaul |
| Brakes and Controls | 363-384 | Service Brakes, Parking Brake, Pedal Adjustment, Bleeding the Brake Circuit |
| Hydraulic Systems | 385-472 | Rexroth Fixed Displacement Gear Pump and Its Flow and Speed Limits, Pressure Regulating Valve, Lift Cylinder and Its Safety Valve, Category I Three-Point Hitch with Draft Control, Remote Valves, Pressure Testing and Pump Overhaul |
| Steering | 473-530 | Hydrostatic Steering Unit and Circuit, Steering Control Valve and Cylinder, Steering Column, Fault Finding |
| Wheels | 531-548 | Wheel and Tyre Fitment, Track Width Adjustment, Wheel Nut Torques |
| Electrical Systems: Control Systems | 549-568 | Electrical System Overview, Transmission Control System, Rear Power Take-Off Control System |
| Electrical Systems: Harnesses and Connectors | 569-669 | Complete Wire Harness Drawings, Connector Component Diagrams, Fuse and Relay Layouts, Pin-Out Tables |
| Electrical Systems: Starting, Charging, Lighting and Cab Controls | 670-728 | Engine Starting System, Alternator and Battery, External Lighting and Its Switches, Warning Indicators, Alarms and Instruments, Cab Controls |
| Electrical Systems: Fault Codes and Diagnostics | 729-1034 | Fault-Code Index and Tables, Guided Diagnostic Test Procedures, Circuit-Level Troubleshooting |
| Platform, Cab, Bodywork and Decals | 1035-1063 | Cab and Platform Assembly, Bodywork Panels, Hood and Grille, Glazing, Decals, Component Removal |
| Special Tool Index | 1064-1067 | Part Numbers of the Special Service Tools Each Procedure Calls for |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic pump | ||
| Type and make | Fixed displacement gear pump, Rexroth (Bosch Group), engine timing gear driven | |
| Displacement | 16 cm3 per revolution | |
| Maximum rotational speed | 3300 rpm | |
| Flow at 1500 rpm and 210 bar | 21.12 L/min | |
| Hydraulic system | ||
| Pressure regulating valve setting | 190 bar (2755 psi) | |
| Lift cylinder | ||
| Safety valve opening pressure | 205.0 bar | |
| Implement attachment | ||
| Three-point hitch category | Category I, with draft control | |
| All models | ||
| Emissions tier | Tier 4B (final) | |
New Holland Workmaster 50, Workmaster 60, Workmaster 70 Common Problems This Manual Covers
The three-point hitch is slow, will not lift, or drops under load.
Test the pressures before you strip anything. The pressure regulating valve is set to 190 bar and the lift cylinder safety valve opens at 205.0 bar, so measure regulated pressure first. If it is correct, the pump is making its flow, which should be 21.12 L/min at 1500 rpm against 210 bar, and the fault is in the cylinder, the draft control or the linkage. The hydraulic section carries the test points and the pump and cylinder overhauls.
Manual Section: Hydraulic SystemsA fault code, a warning lamp, or a function that will not respond to its switch.
Read the code and work the fault-code tables, which give the conditions that set each code and a guided diagnostic naming what to measure and where. When the test points at a circuit, use the harness drawings and connector component diagrams and back-probe the pin they name. If the transmission or the rear PTO is the function at fault, their control systems have their own chapters at the front of the electrical section.
Manual Section: Electrical Systems: Fault Codes and DiagnosticsThe tractor is short of hydraulic power only at low engine speed.
That is the pump working as designed rather than a fault. The pump is fixed displacement and geared to the engine, so its flow scales with engine speed: the manual quotes 21.12 L/min at 1500 rpm against 210 bar, and the pump is limited to 3300 rpm at the top end. Raise the engine speed and repeat the test before you condemn the pump, and confirm the regulating valve is holding 190 bar under load.
Manual Section: Hydraulic SystemsFrequently Asked Questions
Which tractors does this manual cover?
The Workmaster 50, Workmaster 60 and Workmaster 70, all Tier 4B (final), under part number 47866583. They share the chassis, the axles, the hydraulics and the electrical architecture, so nearly every procedure applies across the three, and the manual names the model where a component differs.
What are the hydraulic pump specifications?
The pump is a Rexroth (Bosch Group) fixed displacement gear pump driven off the engine timing gears, turning anti-clockwise seen from the free end of the drive shaft. It displaces 16 cm3 per revolution, is limited to 3300 rpm, and delivers 21.12 L/min at 1500 rpm against 210 bar.
What pressures should the lift see?
The pressure regulating valve is set to 190 bar (2755 psi), and the lift cylinder safety valve opens at 205.0 bar. Those two figures bracket a healthy system: a lift that will not raise with regulating pressure at 190 bar is a cylinder or a linkage problem, not a pump problem.
Which hitch is fitted?
A Category I three-point hitch with draft control. The hydraulic section covers the hitch, the lift cylinder and its safety valve, and the remote valves, along with the pressure test procedure and the pump overhaul.
How big is the manual and can I search it?
It is 1067 pages in English, a searchable and printable PDF. Search the text, print the pages you need for the bench, and keep the rest on a laptop in the workshop.
How quickly can I access this New Holland Workmaster 50, Workmaster 60?
A 1067-page Repair Manual in searchable PDF format (59 MB), available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Is this New Holland Workmaster 50, Workmaster 60, Workmaster 70 manual?
Zero restrictions. The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
