25WPMAN0141 (8/31/01)
TROUBLE SHOOTING
BELT CONDITIONS
PROBLEM POSSIBLE CAUSE SOLUTION
Belt slippage Mower overloading; material too Reduce tractor ground speed but
tall or heavy 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 lubricant from belt and pulleys
with clean rag. Replace o il-soaked
belt.
Belt hung up or rubbing Check belt position in pulleys and
idlers. Check belt for free travel in
pulleys. Check under mower and
around blade spindle shafts for wire,
rags, or other foreign material.
Clean all material from under
mower.
Frayed edges on belt Belt misaligned Re-align belt. Be sure belt does not
cover 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 Replace belt.*
installation damage
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. A void hitting solid objects
or ground.
* 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.
