WPT POWER PILOTLESS - Trouble Shooting Guide

Page 38 of 39 WIM-TD-002_C
Trouble shooting Guide
Problem
Possible Cause
Remedy
PTO Will Not
Engage/Disengage
Improper engagement torque
Check engagement torque and adjust as
necessary
Worn or damaged friction
discs
Inspect friction discs and replace as needed
Debris in clutch pack
Inspect clutch pack and remove debris
Ringing or Knocking Sound
While Disengaged
Normal operational sound
Engage PTO
Grinding/Scraping Sounds
While Engaged or
Disengaged
Worn PTO main bearings
Inspect main bearings and replace as
needed
Clutch Slips, Burnt Smell,
and/or Smoke from PTO
Improper engagement torque
Check engagement torque and adjust as
necessary
Worn or damaged friction
discs
Inspect friction discs and replace as needed
Sliding sleeve assembly
contacting clutch shaft
Check for axial loading on operating shaft
Excessive Vibrations
Worn engine bearings
Inspect endplay and runout on engine
flywheel, replace as needed
Worn PTO main bearings
Inspect main bearings and replace as
needed
Improper alignment
Check alignment, adjust as needed
Split Friction Disc or Broken
Teeth
Worn drive ring
Inspect drive ring teeth and replace as
needed
Engagement speed is too
high
Reduce to 1100 r/min
Improper alignment
Check alignment, adjust as needed
No support outboard support
plate
Check if unit requires outboard support,
install if needed
High inertia or shock load
starts
Contact WPT Power Applications
Engineering for support
PTO Self Engages
Improper engagement torque
Check engagement torque and adjust as
necessary
Worn or damaged friction
discs
Inspect friction discs and replace as needed
Frequent Adjustments
Needed to Engagement
Torque
Engagement speed is too
high
Reduce engagement speed to below 1000
r/min
Excessive force on operating
handle
Reduce operating force to spec
Clutch Will Not Fully Seat on
Bell Housing
Flywheel bore depth too
shallow
Measure bore depth, contact WPT Power
Applications Engineering
Bearing Carrier Hot
(Temp 200° F)
Too much or too little grease
Remove/Add Grease
Improper belt tension
Adjust belt tension according to belt
manufactures recommendations
Worn PTO main bearings
Inspect main bearings and replace as
needed
Excessive Grease Leaking
Over greased
Run at idle speed until grease outflow stops
Axial Movement in the Clutch
Shaft When Engaging or
Disengaging PTO
Normal operational movement
No actions needed