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WBM XPC500 Grapple - User Manual

WBM XPC500 Grapple
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XPC500S12 Grapple:
3-sec. V/H, S/O, FLT,
(2) 60.5 VIS Motors, WBM Cyl., Pierce Frt
KOMATSU PC290LC-10
148-527-0080
Table of Contents
STOP INSTALLATION (901-210-0001) .......................................................................................... PAGE 2
MAINTENANCE AND INSPECTION (901-210-0003) ................................................................... PAGE 3
ROTATING BEARING LUBRICATION (901-210-0004) ................................................................. PAGE 4
GRAPPLE INSTALLATION INSTRUCTIONS (901-210-0005) .......................................................... PAGE 5
OPERATION WARNING (901-210-0006) ..................................................................................... PAGE 6
GRAPPLE JAW STOP AND MAINTENANCE (901-210-0025) .................................................. PAGE 7-9
GRAPPLE OUTSIDE GEAR LUBRICATION (901-210-0030) ....................................................... PAGE 10
CLAM GRAPPLE MAIN ASSEMBLY (148-527-0080) ............................................................ PAGE 11-12
CLAM GRAPPLE LOWER ASSEMBLY (341-810-0018) ......................................................... PAGE 13-14
HYDRAULIC CYLINDER (317-002-0808) ................................................................................... PAGE 15
HYDRAULIC CYLINDER (317-002-624) ..................................................................................... PAGE 16
SWIVEL ASSEMBLY (340-501-0022) ........................................................................................... PAGE 17
RELIEF VALVE ASSEMBLY (558-007-0201) ................................................................................ PAGE 18
HYDRAULIC HOSES LOWER ASS’Y (901-205-0167) ................................................................. PAGE 19
CONTROL VALVE ASSEMBLY (340-015-0013) .......................................................................FOLD OUT
HYDRAULIC INSTALLATION (901-210-0035) ...........................................................................FOLD OUT
HYDRAULIC SCHEMATIC (901-205-0153) ..............................................................................FOLD OUT

Table of Contents

Questions and Answers

  • T
    Terri WilliamsAug 4, 2025
    What to do if WBM Industrial Equipment doesn’t hold load or stops functioning?
    • V
      vthompsonAug 4, 2025
      If your WBM Industrial Equipment doesn’t hold a load or stops functioning, there might be several reasons. First, check the hydraulic pressure. Other potential causes include broken hoses (repair or replace them), a control valve malfunction (inspect the control valve), seal failure in the cylinders (check the piston seal), or seal failure in the swivel (check swivel seals).
  • R
    rachel15Aug 18, 2025
    Why rotation or jaw function fail in WBM Industrial Equipment?
    • J
      Joshua CookAug 18, 2025
      If the rotation or jaw function fails in your WBM Industrial Equipment, it could be due to a control valve solenoid failure (install a new solenoid). If the problem persists after replacing the solenoid, verify the defective valve section. Also, check the wiring from the solenoid to the power source and check the pilot pressure.

Summary

Grapple Service, Installation, and Maintenance

General Information and Safety

Safety classifications, warnings, and general operational advice.

Installation Procedures

Steps for mounting and connecting the grapple to the excavator.

Maintenance and Lubrication

Guidelines for routine checks, lubrication, and upkeep.

Troubleshooting Guide

Common problems, causes, and solutions for grapple operation.

Component Assemblies and Technical Schematics

XPC500 S12 Grapple Parts List

Detailed list of all parts for the XPC500S12 grapple assembly.

Turret, Valve, and Swivel Assemblies

Diagrams and parts for turret, valve, and swivel components.

Lower Assembly and Hydraulic Components

Part diagrams for lower assembly, hydraulic cylinders, and hoses.

Control Valve and Hydraulic Schematics

PVG 32 control valve details and overall hydraulic system diagrams.

WBM XPC500 Grapple Specifications

General IconGeneral
BrandWBM
ModelXPC500 Grapple
CategoryIndustrial Equipment
LanguageEnglish