20 Trouble Shooting
29977 (Rev. 1/23/2009)
TROUBLE SHOOTING
Problem Possible Cause Solution
Does not cut Dull blades Sharpen blades.
Worn or broken blades Replace blades. (Replace pairs
only.)
Incorrect PTO speed Be sure PTO speed is set at 540 or
1000 RPM. Make sure to check
your unit’s 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.
Streaks or gives rugged cut Broken or worn blades Replace or sharpen blades.
Ground speed too fast Reduce ground speed.
Excessive cutting height Lower cutting height. (Note: Set
height so blades do not frequently
hit ground.)
Excessive lush and tall vegetation Recut at 90° to first pass.
Thrown objects No shielding Use chain shielding.
Excessive side skid wear Running with skids continuously
on ground
Set skids above ground.
Excessive clutch slippage Clutch out of adjustment Adjust clutch.
Clutch discs worn Replace discs.
Blades hitting ground Raise cutting height.
Vibration Broken blade Replace blades in pairs.
Excessive side skid wear Running with skids continuously
on ground
Use gauge wheels on cutter head.
Wing will not raise Low oil Add hydraulic fluid.
