24
Troubleshooting
MAN1078 (2/6/2014)
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
SOLUTION
Does not cut
Dull blades
Sharpen blades.
Worn or broken blades
Replace blades. (Replace in pairs
only.)
Incorrect PTO speed
Set at rated PTO speed.
Ground speed too fast
Reduce ground speed.
Drive not functioning (blades do
not turn when PTO is running)
Check drive shaft connection.
Check gearbox.
Gearbox malfunction
Repair gearbox.
Excessive clutch slippage
Adjust clutch.
Incorrect blade direction
Check to be sure blade edge is
correct for direction of rotation.
Streaks or ragged cut
Broken or worn blades
Replace or sharpen blades.
Attitude incorrect
Level machine.
Ground speed too fast
Reduce ground speed.
Excessive cutting height
Lower cutting height. (Note: Set
height so blades do not hit
ground.)
Excessive lush and tall vegetation
Recut at 90° to first pass.
Excessive side skid wear
Running with skids continuously
on ground
Raise cutting height or adjust.
Excessive clutch slippage
Clutch out of adjustment
Adjust clutch.
Clutch discs worn; wear stops
contacting opposite plate
Replace discs.
Blades hitting ground
Raise cutting height.
Vibration
Broken blade
Replace blades in pairs.
Bearing failure
Check gearbox shafts for side play.
Hitch length incorrect
Reset hitch length.
Universal drive
Adjust pedestal bearing height to
be parallel to ground.
Blades hitting deck
Bent blades or crossbar
Replace bent blades or crossbar.
Unit will not raise
Low oil
Add hydraulic oil.
Unit doesn’t cut level
Wing section cuts lower than
center
Lengthen turnbuckle connecting
center yoke to wing wheel yoke.
Wing section cuts higher than
center
Shorten turnbuckle connecting
center yoke to wing wheel yoke.
