WBM XPC500 Grapple Quick start guide

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

Weldco-Beales Manufacturing Page 2
WBM
Thank You
Thank you for purchasing this WBM product. We strive to provide the best possible attachments
and product support in the industry. Should we fall short in any way please contact us directly.
Please review this product manual for important information before assembly, installation or
operation.
While every effort has been made to ensure the accuracy of any information presented in this
document, please let us know of any errors or omissions, or, give us suggestions to improve this
publication. Please contact your local equipment dealer or Weldco-Beales Mfg.
This product manual is available online through the dealers’ portal on our website (with sign-up
instructions).
Installation
Should you encounter or identify any problems during assembly & installation, please contact
your local equipment dealer or Weldco-Beales Mfg. for immediate assistance.
Warranty
Should this product develop any problems during its warranty period, please contact the
service department of your local supplier. A claim will be made on your behalf. Please refer to
our website for warranty policies and procedures.
Edmonton AB
& Central USA Langley BC & Western USA Barrie ON & Eastern USA Warranty
1-800-661-4155 1-800-665-0511 1-877-320-4286 1 877 456 7779
www.weldco-beales.com

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WBM
Table Of Contents
General Information ........................................................................................5
 SafetyMessageClassication...................................................................5
Grapple Terminology .................................................................................7
Decals ..........................................................................................................8
Installation ........................................................................................................9
WBM Supplied Tool Cylinder And Cylinder Anchor ................................10
OEM Supplied Tool Cylinder And Cylinder Anchor.................................16
Upper And Lower Jaw Stops .....................................................................20
Jaw Stops Installation .................................................................................21
Electrical Installation (If Applicable).........................................................23
Hydraulic Installation ..................................................................................24
General Hydraulic Information............................................................25
Operation .........................................................................................................27
Maintenance....................................................................................................28
General Information...................................................................................28
Daily Inspections (Static)............................................................................29
Daily Inspections (Dynamic)......................................................................30
Yearly Inspection ........................................................................................30
Lubrication Diagram...................................................................................31
Lubrication Procedure (Rotation Bearing) ..............................................32
Lubrication Procedure (Outside Gear Face) ..........................................33
Storage ......................................................................................................35
After Storage ..............................................................................................35
Troubleshooting................................................................................................36
Daily Inspection................................................................................................37
Weekly Inspection............................................................................................39
Monthly Inspection...........................................................................................41
2 Months / 250 Hours Inspection.....................................................................43
1 Year / 2500 Hours Inspection .......................................................................45
2 Years / 5000 Hours Inspection......................................................................47
5 Years / 10 000 Hours Inspection...................................................................49
Appendix...........................................................................................................51
Torque Charts ..................................................................................................51

WBM Parts, Service andInstallation
XPC500/XPC600Grapple
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WBM
XPC500/XPC600GRAPPLE
PARTS, SERVICE AND INSTALLATION
GENERAL INFORMATION
SafetyMessageClassification
Identifies a very hazardous situation that WILL result in
PROPERTY DAMAGE, SERIOUS INJURY OR DEATH.
Identifies a hazardous situation that COULD result in PROPERTY
DAMAGE, SERIOUS INJURY OR DEATH.
Identifies a hazardous situation that MAY result in PROPERTY
DAMAGE OR INJURY.
Identifies a hazardous situation that MAY result in PROPERTY
DAMAGE (to the attachment or to the machine).
WARNING
!
DANGER
!
CAUTION
!
NOTICE
GeneralInformation
Before working with the attachment, each person must do the following:
•Read the complete manual, including safety messages and decals.
•Review all available documents about the machine, including hazard assessments
and operation manuals.
•Make the working area safe, by keeping all personnel and objects at the safe
working distance (refer to original equipment manufacturer documents).
For help with the attachment, call your equipment dealer or Weldco-Beales
Manufacturing Ltd (WBM).
WARNING
!
General
• This manual contains important information about installation, operation and maintenance
of the attachment. It must be read by each person working with the attachment.
• This manual does not replace training and experience.
• The owners and operators are always responsible for safe operation.
Failure to read the manual, get proper training and to safely operate the attachment may result in
property damage, serious injury or death.

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WBM
XPC500/XPC600GRAPPLE
PARTS, SERVICE AND INSTALLATION
GENERAL INFORMATION
GENERAL SAFETY
WARNING
!
General
• This manual is to be used as a guide only. A safety program should be developed by the
owners and operators that is specific to each application.
• The owners and operators are responsible for safe working procedures, in every
application and circumstance.
• Ensure all personnel/objects are at the recommended O.E.M (Original Equipment
Manufacturer) safe working distance from the machine.
Maintenance
• Installation and maintenance of the attachment is to be done by a qualified service
technician. Ensure the technician has read and understands the manual before
installation. This manual is not intended as a substitute for adequate training and
experience.
• Do not modify any part of the attachment, unless authorized by Weldco-Beales Mfg.
• The machine and attachment contain several pinch points.
• Correctly support all attachments and linkages before performing maintenance or
inspections.
• If the attachment is not functioning correctly have it checked and/or repaired by a qualified
service technician before using the attachment.
• Any cracking or component damage must be repaired; any damaged components or
missing parts must be replaced prior to any and all operation of the attachment.
• All attachment maintenance schedules must be included in the machine’s maintenance
schedules
Hydraulics
• All hydraulic leaks or damage must be repaired, prior to any operation of the attachment.
• Never check for hydraulic leaks with your hand. Pressurized hydraulic leaks may cause
laceration or amputation. Use scrap material (ie. cardboard, paper etc.) to check hydraulic
hoses and fittings. Wear the correct Personal Protective Equipment (PPE).
• Hydraulic components may contain residual pressure. Never work on a system with
hydraulic connections that may be pressurized. Take every precaution to ensure no
pressure remains in the system.
Failure to do so may result in property damage, serious injury or death.

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WBM
GrappleTerminology
TOOL CYLINDER
STICK
JAW CYLINDER
ROTATE MOTOR
(PINION DRIVE)
STICK PIN
CYLINDER ANCHOR
TAIL END PIN
ROD END PIN
STATIONARY
OUTRIGGER
WIDE JAW
NARROW
JAW
TILT MECHANICAL
STOP
TURRET ASSEMBLY
(DRIVE FRAME)
LOWER ASSEMBLY
(PIVOT FRAME)
JAW HINGE
PIN
PRIMARY
JAW STOPS
SECONDARY
JAW STOPS
PRIMARY
JAW STOPS
SECONDARY
JAW STOPS
HYDRAULIC
OUTRIGGER
XPC500/XPC600GRAPPLE
PARTS, SERVICE AND INSTALLATION
GENERAL INFORMATION
TERMINOLOGY
CYLINDER
BARREL END
PIN
CYLINDER ROD
END PIN
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XPC500/XPC600GRAPPLE
PARTS, SERVICE AND INSTALLATION
GENERAL INFORMATION
DECALS
WBM
Part Number: 599-002-0186
Part Number: 599-002-0567
Decals
Replace worn decals; all decals must be legible and free of dirt. Contact WBM to
order replacement decals (each decal has a part number, called up in the parts
pages).

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XPC500/XPC600GRAPPLE
PARTS, SERVICE AND INSTALLATION
INSTALLATION
WARNING
!
Installation of the attachment is to be done by a qualified service technician. Ensure the
technician has read and understands the manual before starting installation. Failure to comply
may result in property damage, serious injury or death.
WBM
Inspect all assemblies and shipped loose components for damage, shortage or
discrepancies.
1. Remove the stop plate assembly. The stop plate assembly is only tack welded and
will require repositioning and welding.
PIN
SHIM
STICK
SHIM
STOP PLATE
ASSEMBLY
SIDE PLATES
(TRIM AS PER
INSTRUCTIONS)
2. Pin the WBM grapple onto the stick. Use supplied pin and mounting hardware. Shim
as required, to minimize side to side movement.
Installation
Complete The Grapple Installation Report before the grapple is put into service.
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XPC500/XPC600GRAPPLE
PARTS, SERVICE AND INSTALLATION
INSTALLATION
WBM SUPPLIED TOOL CYLINDER AND CYLINDER ANCHOR INSTALLATION
WBM
CYLINDER
ANCHOR
PIN
2. Pin cylinder rod end to the grapple turret, use supplied pin and mounting hardware.
3. Connect hydraulic hoses to the tool cylinder, as per hydraulic schematic. For
hydraulic schematic and torque specifications, see parts pages. The cylinder
will need to be extended and retracted (later in the instructions), to position the
cylinder anchor. Attachment may not be exactly as illustrated
WBMSuppliedToolCylinderand Cylinder Anchor
If using a WBM supplied tool cylinder and cylinder anchor, follow this procedure.
If using an OEM supplied tool cylinder and cylinder anchor, follow OEM instructions
and the procedure starting on the page titled OEM Supplied Tool Cylinder and
Cylinder Anchor.
1. Pin the cylinder anchor onto the barrel-end of the cylinder. Use the WBM pin and
mounting hardware. Shim to minimize side to side movement.

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XPC500/XPC600GRAPPLE
PARTS, SERVICE AND INSTALLATION
INSTALLATION
WBM SUPPLIED TOOL CYLINDER AND CYLINDER ANCHOR INSTALLATION
WBM
STOP PLATE ASSEMBLY
D1
4. Measure the thickness of the stop assembly top plate (D1).
5. Raise the grapple so the tines are just touching the ground.
6. Maneuver the grapple such that the stops would be just touching the underside
of the arm. DO NOT touch the side plates to the underside of the arm. DO leave
enough space for the stop plate assembly. (Position such that the distance from the
grapple side plates to the underside of the arm (D2) equals the thickness of the stop
assembly top plate (D1).
WARNING
!
Use extreme care while maneuvering and measuring the grapple. Ensure there is no chance of
the grapple swinging or becoming unstable. Grapples with offset lugging are especially likely to
swing (due to offset center of gravity). Failure to comply could result in property damage, serious
injury or death.
D2
STOP PLATE ASSEMBLY
D1
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XPC500/XPC600GRAPPLE
PARTS, SERVICE AND INSTALLATION
INSTALLATION
WBM SUPPLIED TOOL CYLINDER AND CYLINDER ANCHOR INSTALLATION
WBM
B1 B2
A1 A2
7. Always follow all safe operating procedures. Use a ladder or rolling stairs to measure
the distances: A1, A2, B1 and B2 (as shown in the following illustration).
8. Compare these measurements to the thickness (D1) of the stop assembly’s top
plate. Prepare to trim the side plates. Keep in mind the final location of the stop
plate assembly and the required jaw and hose clearances.
FINAL
LOCATION OF
STOP PLATE
ASSEMBLY
PROFILE OF
SIDE PLATE
EDGE TO BE
TRIMMED
STOP PLATE ASSEMBLY
D1
STICK/ ARM
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XPC500/XPC600GRAPPLE
PARTS, SERVICE AND INSTALLATION
INSTALLATION
WBM SUPPLIED TOOL CYLINDER AND CYLINDER ANCHOR INSTALLATION
WBM
9. Trim the side plates.
10. Once the side plates are trimmed, move the grapple into a safe position to tack
weld the stop assembly.
11. Tack weld the stop assembly.
12. Maneuver the grapple back into the ‘stopped’ position. (Raise the grapple so the
tines are touching the ground. Maneuver the grapple so the stops are contacting
the underside of the stick.) Do not slam the attachment against the underside of the
arm.
3/8” TO 1/2”
ANCHOR FLAT
ON STICK
13. If the stops are not squarely contacting the underside of the stick; trim or reposition
as required. Once stops are correctly located, move to next step.
14. Check that the cylinder anchor is flat on the stick. Fully extend the tilt cylinder, then
retract the cylinder 3/8” to 1/2”.
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XPC500/XPC600GRAPPLE
PARTS, SERVICE AND INSTALLATION
INSTALLATION
WBM SUPPLIED TOOL CYLINDER AND CYLINDER ANCHOR INSTALLATION
WBM
CYLINDER RETRACTED 3/8” TO
1/2” FROM FULL-EXTENSION
STOP ASSEMBLY SQUARELY
CONTACTING UNDERSIDE OF STICK
ANCHOR FLAT ON STICK
15. Tack weld the cylinder anchor to the stick. Ensure it is centered and will not come
loose during the test rotation.
16. Slightly raise the grapple and cycle the cylinder. Check for the following:
• Smooth motion
• Jaw and hose clearance
• Cylinder anchor is flat on the stick
• The tool cylinder motion is restricted to 3/8” to 1/2” short of full extension
• The stop assembly squarely contacts the underside of the stick on both sides
CLEARANCE FOR JAWS
SMOOTH MOTION
OF GRAPPLE
AMPLE CLEARANCE FOR HOSES
17. If any of the conditions are not met, adjust accordingly.
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XPC500/XPC600GRAPPLE
PARTS, SERVICE AND INSTALLATION
INSTALLATION
WBM SUPPLIED TOOL CYLINDER AND CYLINDER ANCHOR INSTALLATION
WBM
NOTICE
18. Fully weld the stop plate assembly to the side plates.
1/2
19. Slowly cycle the tool cylinder and check for functionality (smooth motion,
clearances, etc.).
20. Fully weld the cylinder anchor to the stick. Remove any notches/imperfections in
weld by using pigtail run out welds and grinding the weld smooth.
3/8
DO NOT WELD
ACROSS ENDS CYLINDER
ANCHOR
21. Inspect the stop before every shift (to ensure it is not damaged or bent). Repair as
required.
The stop must be inspected and maintained daily. Do not operate the grapple if the stop is
damaged or missing. Failure to comply could result in property damage.
E7018 OR
EQUIVALENT
* SUGGESTED WELD PROCEDURES ONLY. Warranty of stick is not covered by WELDCO-
BEALES MFG. LTD. due to installation of cylinder anchor and grapple. If further
information on weld specifications and warranties are required, contact the machine
manufacturer.
TOP VIEW
SMOOTH
WELD EDGE
SIDE VIEW
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XPC500/XPC600GRAPPLE
PARTS, SERVICE AND INSTALLATION
INSTALLATION
OEM SUPPLIED TOOL CYLINDER AND CYLINDER ANCHOR INSTALLATION
WBM
OEMSuppliedToolCylinderand Cylinder Anchor
If using an OEM supplied tool cylinder and cylinder anchor: follow this procedure. If
using a WBM supplied tool cylinder and cylinder anchor: follow the procedure starting
on the page titled WBM Supplied Tool Cylinder and Cylinder Anchor
1. Pin cylinder rod end to the grapple turret, use supplied pin and mounting hardware.
WBM supplied anchor is shown.
2. Connect hydraulic hoses to the tool cylinder, as per OEM instructions.
3. Fully extend the tilt cylinder, then retract the cylinder 3/8” to 1/2” (if OEM cylinder
recommendations are not available).
3/8” TO 1/2”
ANCHOR FLAT
ON STICK
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XPC500/XPC600GRAPPLE
PARTS, SERVICE AND INSTALLATION
INSTALLATION
OEM SUPPLIED TOOL CYLINDER AND CYLINDER ANCHOR INSTALLATION
WBM
B1 B2
A1 A2
4. Position the grapple in a safe and secure position. Always follow all safe operating
procedures.
5. Always follow safe operating procedures. Use a ladder or rolling stairs to measure
the distances: A1, A2, B1 and B2 (on the turret) and the thickness of the stop plate
assembly’s top plate (D1), as shown in the following illustration.
STOP PLATE ASSEMBLY
D1
STICK/ ARM
8. Compare these measurements and prepare to trim/ build-up the side plates. Keep
in mind the final location of the stop plate assembly and the required jaw and hose
clearances.
FINAL
LOCATION OF
STOP PLATE
ASSEMBLY
PROFILE OF
SIDE PLATE
EDGE TO BE
TRIMMED OR
BUILT UP
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XPC500/XPC600GRAPPLE
PARTS, SERVICE AND INSTALLATION
INSTALLATION
OEM SUPPLIED TOOL CYLINDER AND CYLINDER ANCHOR INSTALLATION
WBM
9. Trim/ build-up the side plates.
10. Once the side plates are fitted, move the grapple into a safe position to tack weld
the stop assembly.
11. Tack weld the stop assembly.
12. Slightly raise the grapple and cycle the cylinder. Check for the following:
• Smooth motion
• Jaw and hose clearances
• Cylinder anchor is flat on the stick
• The tool cylinder motion is restricted to 3/8” to 1/2” short of full extension
• The stop assembly squarely contacts the underside of the stick on both sides
CYLINDER RETRACTED 3/8” TO
1/2” FROM FULL-EXTENSION
STOP ASSEMBLY SQUARELY
CONTACTING UNDERSIDE OF STICK
ANCHOR FLAT ON STICK
CLEARANCE FOR JAWS
SMOOTH MOTION
OF GRAPPLE
AMPLE CLEARANCE FOR HOSES
13. If any of the conditions are not met, adjust accordingly.
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XPC500/XPC600GRAPPLE
PARTS, SERVICE AND INSTALLATION
INSTALLATION
OEM SUPPLIED TOOL CYLINDER AND CYLINDER ANCHOR INSTALLATION
WBM
NOTICE
14. Fully weld the stop plate assembly to the side plates.
1/2
15. Slowly cycle the tool cylinder and check for functionality (smooth motion,
clearances, etc.).
16. Inspect the stop before every shift, to ensure it is not damaged or bent. Repair as
required.
The stop must be inspected and maintained daily. Do not operate the grapple if the stop is
damaged or missing. Failure to comply could result in property damage.
* SUGGESTED WELD PROCEDURES ONLY. Warranty of stick is not covered by WELDCO-
BEALES MFG. LTD. due to installation of cylinder anchor and grapple. If further
information on weld specifications and warranties are required, contact the machine
manufacturer.
Attachment may not be exactly as illustrated

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WBM
XPC500/XPC600GRAPPLE
PARTS, SERVICE AND INSTALLATION
INSTALLATION
JAW STOPS INSTALLATION
Attachment may not be exactly as illustrated
NOTICE
Jaw stops must be inspected and maintained. Do not operate the grapple if the jaw stops are
damaged or missing. Failure to do so could result in severe damage to the jaw cylinders, jaw
assemblies and the grapple.
*Jaw profiles and jaw stop profiles will vary from model to model.
UPPER JAW STOP
LOWER JAW STOP
UpperandLowerJawStops
The jaw stops consist of one or two sets of jaw stops. The jaw stops should all contact at
the same time, with some preference given to the upper set of jaw stops contacting
first.
The jaw stops must be installed and maintained to prevent damage to the jaw,
cylinders and pivot frame.
TWO JAW STOPS
JawStops
The jaw stops are assembled either tack welded or fully welded.
•If the jaw stops are tack welded: remove the jaw stops and position according to the
Jaw Stops Installation section in this manual.
•If the jaw stops are fully welded: they were positioned upon assembly and will require
regular maintenance, but not installation.