Toro Wheel Horse 523Dxi Operator's Manual page 59

PROBLEM
Abnormal vibration or noise.
PTO (cutter deck) belt comes off
of pulleys, slips, or fails.
POSSIBLE CAUSES
1. The engine mounting bolts
are loose.
2. The idler pulley or mower
deck blade is loose.
3. The transaxle cooling fan is
loose.
4. There is a problem with the
electric clutch.
1. Belt tension is incorrect.
2. Mower level is incorrect
3. Blade slope in transport is
incorrect.
4. Cutter deck belt guide is
loose or incorrectly adjusted.
5. Belt is worn or damaged.
6. Pulley is damaged.
7. Engine is not at full throttle.
8. PTO is being engaged when
cutter deck is in tall uncut
grass or weeds.
9. Cutter deck is overloaded
because mulching or bagging
requires more power.
10. Cutter deck is overloaded
because too much grass is
being cut at a time.
11. Cutter deck is overloaded
because deck is clogged with
grass clippings.
12. Cutter deck is overloaded
because tractor is mowing too
fast for conditions.
CORRECTIVE ACTION
1. Tighten the engine mounting
bolts.
2. Tighten the appropriate pulley
or blade fastener.
3. Contact your Authorized
Service Dealer.
4. Contact your Authorized
Service Dealer.
1. See cutter deck or
attachment manual.
2. See cutter deck manual.
3. See cutter deck manual.
4. Adjust and tighten belt guide.
5. See cutter deck or
attachment manual.
6. Contact authorized dealer.
7. Always operate engine
powered attachments at full
throttle.
8. Engage PTO only in shorter
or previously cut grass.
9. Reduce ground speed when
mulching or bagging.
10. Cut tall grass and weeds with
mower in its highest position,
making a second pass cutting
at height desired.
11. Clean cutter deck.
12. Reduce ground speed.
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