Pullmaster H25 User Manual

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INSTRUCTION AND PARTS MANUAL

MODEL H25

PLANETARY HYDRAULIC WINCH

PMC 251 070228

PULLMASTER WINCH CORPORATION

8247-130th Street, Surrey, B.C. V3W 7X4, Canada

Telephone: 604-594-4444 Fax: 604-591-7332

Website: www.pullmaster.com

E-mail: sales@pullmaster.com

READ THIS MANUAL BEFORE INSTALLING, OPERATING OR

SERVICING THIS PRODUCT. THIS MANUAL CONTAINS IMPORTANT

INFORMATION. MAKE THIS MANUAL AVAILABLE TO ALL PERSONS

RESPONSIBLE FOR THE OPERATION, INSTALLATION, SERVICING

AND MAINTENANCE OF THIS PRODUCT.

THE LOGICAL CHOICE

Table of Contents

Questions and Answers:

L
Lacey MejiaAug 3, 2025
Why is my Pullmaster H25 Other winch not producing line pull at maximum pressure?
- R
  richard41Aug 3, 2025
  If your Pullmaster Other winch isn't producing the line pull at maximum pressure as specified, there might be several reasons: * The winch could be mounted on an uneven surface. * The cable sheaves or block purchase isn't turning freely. * There's damage or wear in the hydraulic motor. * There's excessive back pressure in the hydraulic system. * The relief valve may be set too low; check the specifications for maximum operating pressure.
J
James HubbardAug 11, 2025
Why is my Pullmaster H25 Other winch not producing line speed at maximum volume?
- E
  Erik HumphreyAug 11, 2025
  If your Pullmaster Other winch isn't achieving the specified line speed at maximum volume, consider these factors: * The winch could be mounted on an uneven surface. * The cable sheaves or block purchase isn't turning freely. * There might be damage or wear in the hydraulic motor. * There's excessive back pressure in the hydraulic circuit.

Pullmaster H25 Specifications

General

Brand	Pullmaster
Model	H25
Category	Other
Language	English

Summary

Safety Recommendations

Danger, Warning, Caution Definitions

Explains the meaning and severity of DANGER, WARNING, and CAUTION safety alerts.

General Safety Precautions

Lists essential safety practices for operating and servicing the winch to prevent injury or damage.

Description of the Model H25

Function in Forward Rotation (Hoisting)

Explains how the winch operates during forward rotation for hoisting loads.

Function in Reverse Rotation (Lowering)

Details the winch's operation during reverse rotation for lowering loads.

Specifications

Operating Pressure and Volume

Specifies maximum and minimum operating pressure and volume for the hydraulic system.

Drum Torque and Speed

Line Pull and Speed Ratings

Lists line pull and speed ratings for hoisting and lowering at maximum pressure/volume.

Performance Graphs

Line Pull vs. Oil Pressure Graph

Graph showing the relationship between line pull and oil pressure for hoisting and lowering.

Line Speed vs. Oil Volume Graph

Graph illustrating the relationship between line speed and oil volume for hoisting and lowering.

Installation Instructions

Mounting Platform and Alignment

Details ensuring a strong, level mounting platform and proper winch alignment.

Shimmed Mounting Pad Procedure

Provides steps for shimming a mounting pad if the surface is not perfectly even.

Lubrication and Circuit Checks

Breather Relief Installation

Operating Instructions

Wire Rope Installation and Safety

Guides on fastening wire rope to the drum, selecting anchor slots, and drum wrapping.

Winch Control Operation

Pre-Operation Warm-up and Testing

Troubleshooting

General Troubleshooting Approach

Troubleshooting Line Pull Issues

Lists probable causes for the winch not producing maximum line pull as specified.

Troubleshooting Line Speed Issues

Lists probable causes for the winch not producing specified line speed.

Troubleshooting Reverse Operation

Identifies causes for the winch not reversing, often related to brake or pressure issues.

Troubleshooting Brake Holding Failure

Lists causes for the brake not holding, including contamination and control valve issues.

Troubleshooting Brake Vibration

Troubleshooting Oil Leaks

Service Instructions

General Service and Disassembly Preparation

Hydraulic Motor Assembly Removal

Brake Housing Assembly Disassembly

Outlines the steps for disassembling the brake housing and its internal components.

Disassembly of Primary Drive Components

Disassembly of Final Drive Components

Reassembly of Final Drive Components

Reassembly of Primary Drive Components

Reassembly of Brake Housing Assembly

Guides on correctly reassembling the brake housing, friction plates, and piston.

Reassembly of Hydraulic Motor

Recommended Maintenance

Scheduled Maintenance Tasks