TROUBLESHOOTING BELT CONDITIONS

Problempossible Causesolution

Belt slippageMower 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-lubrication

Be careful not to over-lubricate. Clean lubricant from belt and pulleys with clean rag.

Replace oil-soaked belt.

Belt hung up or rubbingCheck belt position in pulleys and idlers.

Check belt for free travel in pulleys. Check under mower and around blade spindle shaft for wire, rags, or other foreign material.

Clean all material from under mower.

Frayed edges on belt coverBelt misalignedRe-align belt. Be sure belt does not rub any other part while running.

Pulley misalignedInspect to ensure belt is running in center of backside idler. Shim idler as necessary to align.

Belt rolloverPulley misalignedRe-align.

Damaged beltReplace belt*.

Foreign object in pulley grooveInspect all pulley grooves for rust, paint, or weld spots and remove.

Worn pulley grooveReplace pulley.

Damaged beltRollover, high shock loads or installation damaged Replace belt*.

Belt breakageHigh shock loads

Avoid abusive mowing. Avoid hitting the ground or large obstructions.

Belt came off driveCheck pulleys for foreign material in grooves.

Avoid 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.

5WPMAN0765 (9/30/2009)