18
Trouble Shooting
WPMAN0142 (Rev. 9/1/2004)
TROUBLE SHOOTING
BELT CONDITIONS
* Check belt for damage by laying it flat on the floor. A belt that does not lie flat (has humps or twists, indicating broken
or stretched cords) must be replaced.
PROBLEM
POSSIBLE CAUSE
SOLUTION
Belt slippage
Mower overloading; material too tall or
heavy
Reduce tractor ground speed but maintain
full PTO rpm. Cut material twice; one high
pass and then mow at desired height. Cut
a partial swath.
Oil on belt from overlubrication
Be careful not to overlubricate. Clean lubri-
cant from belt and pulleys with clean rag.
Replace oil-soaked belt.
Belt hung up or rubbing
Check belt for free travel in pulleys and belt
guides. Check under mower and around
blade spindle shafts for wire, rags, or other
foreign material. Clean all material from
under mower.
Frayed edges on cover
Belt misaligned or belt rubbing guide
Re-align belt or guide. Be sure belt does
not rub any other part while running.
Pulley misalignment
Inspect to ensure belt is running in center
of backside idler. Shim idler as necessary
to align.
Belt rollover
Pulley misalignment
Re-align.
Damaged belt
Replace belt.*
Foreign object in pulley grooves
Inspect all pulley grooves for rust, paint or
weld spots and remove.
Worn pulley groove
Replace pulley.
Damaged belt
Rollover, high shock loads, or installation
damage
Replace belt.*
Belt breakage
High shock loads
Avoid abusive mowing. Avoid hitting the
ground or large obstructions.
Belt came off drive
Check drive pulley for foreign material in
grooves. Avoid hitting solid objects or
ground.
