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Paccar Winch Gearmatic GH30B - User Manual

Paccar Winch Gearmatic GH30B
31 pages
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1
WINCH DIVISION
P.O. BOX 547 BROKEN ARROW, OK U.S.A. 74013
PHONE (918) 251-8511 FAX (918) 259-1575
www.paccarwinch.com
LIT2397_R3_3-2011
Printed in U.S.A.
Copyright 2011
PACCAR Winch Division
All Rights Reserved
GH30B
HIGH SPEED REVERSE HYDRAULIC HOIST
SERVICE AND MAINTENANCE MANUAL

Questions and Answers

  • H
    Henry ClarkAug 16, 2025
    What to do if the brake on my Paccar Winch Chain Hoists will not hold?
    • Y
      Yvonne ScottAug 16, 2025
      If the brake on your Paccar Winch Chain Hoists won't hold after lifting a load, it could be due to excessive system back pressure acting on the brake release port. Install a pressure gauge at the lowering port of the hydraulic motor and monitor the pressure in neutral and haul-in positions. Alternatively, the friction brake may not hold due to worn or damaged brake discs, requiring disassembly of the winch for inspection and replacement. Lastly, a slipping brake clutch could be the issue, necessitating replacement of brake parts and refilling the reservoir with recommended hydraulic oil.
  • A
    Angela DouglasAug 20, 2025
    Why is there a considerable reduction in line speed on my Paccar Winch Chain Hoists?
    • C
      Carl HicksAug 20, 2025
      If your Paccar Winch Chain Hoists winch is experiencing a considerable reduction in line speed, it could stem from several causes. A particle of dirt may be lodged under the system relief valve. The oil level in the reservoir may be too low, so check the level. The winch might be mounted on an uneven surface causing distortion and binding. If the problem has gradually worsened, the hydraulic pump or winch motor may be worn; remove and inspect the pump and, if satisfactory, inspect the motor.
  • N
    Nancy ScottAug 23, 2025
    Why does my Paccar Winch Chain Hoists run hot?
    • A
      Alexander AlexanderAug 25, 2025
      If your Paccar Winch Chain Hoists winch is running hot, there are several possible causes. The suction line may be restricted or have an air leak. Ensure that the hydraulic system temperature is not more than 180 degrees F by thoroughly cleaning the exterior and flushing the interior. Excessively worn or damaged internal winch parts could also be the issue, requiring disassembly for inspection and replacement. Finally, the circulation oil drain line may be restricted, so inspect it for damage or restrictions.
  • B
    Bryan WagnerAug 27, 2025
    What to do if the brake will not control the load when lowering with my Paccar Winch Chain Hoists?
    • J
      Jeff EnglishAug 27, 2025
      If the brake on your Paccar Winch Chain Hoists will not control or stop the load when lowering, consider these potential causes. There may be excessive system back pressure acting on the brake release port, worn or damaged brake discs, or a slipping brake clutch. Another reason could be that the winch is being overloaded. Install a pressure gauge at the haul-in port and apply a stall pull on the winch.
  • J
    Janice HoodSep 4, 2025
    Why is the reverse speed slower than forward speed on my Paccar Winch Chain Hoists?
    • C
      cristina41Sep 4, 2025
      If the reverse speed is slower than the forward speed on your Paccar Winch Chain Hoists, the control valve may be restricted in its travel; check that the spool travel is the same in both directions. The system relief valve may be set too low. The oil may be too thick, causing high resistance to rotation at the brake plates and causing the relief valve to bypass; follow the warm-up procedure. Also check remedy for F-1.
  • B
    Brittany EdwardsSep 8, 2025
    Why does my Paccar Winch Chain Hoists chatter when lifting?
    • W
      wferrellSep 8, 2025
      If your Paccar Winch Chain Hoists 'chatters' while raising the rated load, it could be due to several reasons. The system relief valve may be set too low. The hydraulic pump or winch motor may be worn. The hydraulic system flow may be too low for smooth operation of winch motor and brake release. The control valve handle may be operated too quickly, so operate control valve smoothly when starting and stopping a load.
  • A
    Ashley Lynch DVMNov 11, 2025
    Why won't my Paccar Winch Chain Hoists pull the maximum load?
    • M
      Melissa Vaughn DVMNov 11, 2025
      If your Paccar Winch Chain Hoists winch isn't pulling its maximum load, several factors could be at play. The system relief valve might be set too low; in this case, install a pressure gauge in the hoisting port during a stall pull and increase the relief valve setting until the recommended pressure is achieved. A particle of dirt may be lodged under the system relief valve, so remove the relief valve, disassemble it, and clean the parts thoroughly. Slipping belts if the pump is belt-driven can also be a culprit, so check and tighten them at full PSI. Also, ensure the oil level in the reservoir is adequate and that the suction line isn't restricted or leaking air. Check the suction line for damage, externally and internally, and replace if necessary. The winch mounting surface should be ev...
  • J
    Jonathan GutierrezDec 1, 2025
    How to fix a Paccar Winch Chain Hoists that won't lower smoothly?
    • S
      scott10Dec 1, 2025
      If your Paccar Winch Chain Hoists winch will not lower the load or does not lower the load smoothly, the friction brake may not be releasing due to a defective brake piston seal. Check the brake piston seals. The friction brake may also fail to release due to damaged brake discs, requiring disassembly to inspect the discs. Insufficient hydraulic system flow for smooth operation of the winch motor and brake release can also cause this; operate the pump at maximum RPM. The hydraulic pump or winch motor may be worn. The pump may be belt driven and the belts may be slipping. The suction line may be restricted or have an air leak. The control valve handle may be operated too quickly, so operate it smoothly. There may be no oil circulating through the winch, so install an oil circulation line. T...

Summary

Introduction

Explanation of Model Number

General Safety Recommendations

General Installation

Theory of Operation

Winch Components

Details the three basic parts of the winch: housing, drum and motor assembly.

Planetary Gear Train Operation

Explains the operation of the planetary gear system for hoisting and lowering.

Brake System Function

Describes the components and function of the friction disc brake and overrunning clutch.

Hydraulic Circuit

Wire Rope Installation

Cable Wedge Installation

Hoist Operation

Hoist Warm-up Procedures

Details the recommended warm-up sequence for the hoist before operation.

Preventative Maintenance

Pre-use Inspection

Outlines daily checks required before operating the hoist.

Quarterly Inspection

Specifies inspections to be performed every three months or in severe duty applications.

Annual Inspection and Testing

Covers annual checks, testing, and overall maintenance strategy.

Recommended Planetary Gear Oil

Oil Capacity for GH30 B

Tear-down Inspection

Oil Sampling and Analysis

Recommended Bolt Torque

Troubleshooting

Winch Not Pulling Maximum Load (A)

Details causes and remedies when the winch fails to pull maximum load.

Reduced Line Speed (B)

Covers common causes and solutions for a significant reduction in winch line speed.

Winch Runs Hot (G)

Explains reasons and fixes for the winch overheating during operation.

Winch Chatters Under Load (H)

Addresses the issue of the winch making chattering noises when lifting a rated load.

Troubleshooting (Continued)

Slow Reverse Speed (C)

Provides solutions for situations where the reverse speed is slower than forward speed.

Brake Not Holding Load (D)

Covers causes and remedies when the brake fails to hold a lifted load.

Brake Failure During Lowering (E)

Details issues where the brake does not control or stop the load during lowering.

Troubleshooting (Continued)

Winch Not Lowering Smoothly (F)

Addresses problems with the winch not lowering the load or lowering it unevenly.

Hoist Disassembly

Brake Cylinder Service

Brake Cylinder Disassembly

Details the step-by-step process for disassembling the brake cylinder.

Brake Cylinder Clean and Inspect

Provides instructions for cleaning and inspecting brake cylinder components.

Brake Cylinder Service (Continued)

Brake Cylinder Assembly

Provides instructions for reassembling the brake cylinder.

Cable Drum Service

Cable Drum Disassembly

Outlines the procedure for disassembling the cable drum.

Cable Drum Assembly

Provides instructions for reassembling the cable drum.

Primary Planet Carrier Service

Primary Planet Carrier Disassembly

Details the procedure for disassembling the primary planet carrier.

Primary Planet Carrier Service (Continued)

Primary Planet Carrier Assembly

Provides instructions for reassembling the primary planet carrier.

Output Planet Carrier Service

Output Planet Carrier Disassembly

Details the procedure for disassembling the output planet carrier.

Output Planet Carrier Assembly

Provides instructions for reassembling the output planet carrier.

Overrunning Clutch Service

Overrunning Clutch Disassembly

Details the procedure for disassembling the overrunning clutch.

Overrunning Clutch Assembly

Provides instructions for reassembling the overrunning clutch.

Hoist Assembly

Metric Conversion Table

Paccar Winch Gearmatic GH30B Specifications

General IconGeneral
BrandPaccar Winch
ModelGearmatic GH30B
CategoryWinches
LanguageEnglish

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