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18 Troubleshooting
15148 (Rev. 2/9/2007)
TROUBLESHOOTING
BELT CONDITIONS
* Check belt for damage by laying it flat on floor. If belt does not lie flat (has humps or twists), which indicates
broken or stretched cords, it must be replaced.
PROBLEM POSSIBLE CAUSE SOLUTION
Belt slippage Belt too loose Re-tension belt.
Mower overloading; material too
tall or heavy
Reduce tractor ground speed but
maintain full PTO rpm. Cut mate-
rial twice, one high pass and then
mow at desired height. Cut a par-
tial swath.
Oil on belt from over lubrication Be careful not to over lubricate.
Clean lubricant from belt and pul-
leys with a 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 for-
eign material. Clean all material
from under mower.
Belt or pulleys worn out If the belt rides in bottom of pulley
groove, either belt or pulley is worn
and must be replaced.
Frayed edges on cover Belt misalignment or belt rubbing
guide
Re-align belt or guide. Be sure belt
doesn’t rub any other part while
running.
Belt rollover Pulley misalignment Realign.
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 hit-
ting ground or large obstructions.
Belt came off drive Check drive alignment for foreign
material in grooves. Ensure proper
tension. Avoid hitting solid objects
or ground.