24
Owner Service
MAN1313 (3/3/2021)
TROUBLESHOOTING
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 squealing
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 90-degrees to first
pass.
Oil on belt from over lubricating
Be careful not to over lubricate. Clean
lubricant from belt and pulleys with
clean rag. Replace oil-soaked belt.
Belt hung up or rubbing
Check belt position in pulleys and
idlers. Check belt for free travel in pul-
leys. Check under mower and around
blade spindle shaft for wire, rags, or
other foreign material. Clean all mate-
rial from under mower.
Bearing failure
Check that spindles turn freely.
Replace any spindle that does not.
Frayed edges on belt cover
Belt is misaligned
Re-align belt. Be sure belt does not
rub any other part while running.
Pulley is misaligned
Inspect to ensure belt is running in
center of backside idler. Shim idler as
necessary to align.
Belt rollover
Pulley is misaligned
Re-align.
Damaged belt
Replace belt. *
Foreign object in pulley groove
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 damaged
Replace belt. *
Belt breakage
High shock loads
Avoid abusive mowing. Avoid hitting
the ground or large obstructions.
Belt came off drive
Check pulleys for foreign material in
grooves. Avoid hitting solid objects or
ground.