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TROUBLESHOOTING THE MOWER DECK
PROBLEM CAUSE REMEDY
Mower drive belt slips 1. Clutch is out of adjustment. 1. See PTO CLutch Adjustment Section.
or fails to drive. 2. Pulleys or belt greasy or oily. 2. Clean as required.
3. Idler pulley spring broken or not 3. Repair or replace as needed.
properly attached.
4. Belt stretched or worn. 4. Replace drive belt.
5. Mower drive belt broken. 5. Replace drive belt.
Mower cut is uneven. 1. Mower not leveled properly. 1. See Mower Adjustment.
2. Drive tires not inflated 2. See Regular Maintenance Section.
equally or properly.
Mower cut is rough looking. 1. Engine speed too slow. 1. Set throttle to full.
2. Ground speed too fast. 2. Decrease ground speed.
3. Blades are dull. 3. Sharpen or replace blades.
See Mower Blade Service.
4. Mower drive belt slipping 4. Clean or replace belt as necessary.
because it is oily or worn.
5. Blades not properly fastened 5. See Servicing the Mower Blades.
to arbors.
Engine stalls easily with 1. Engine speed too slow. 1. Set to full throttle.
mower engaged. 2. Ground speed too fast. 2. Decrease ground speed.
3. Cutting height set too low. 3. Cut tall grass at maximum cutting
height during first pass.
4. Discharge chute plugged 4. Cut grass with discharge pointing toward
with cut grass. previously cut area.
Excessive mower vibration. 1. Blade mounting screws 1. Tighten to 70 ft.lbs. (94 N.m.).
are loose.
2. Mower blades, arbors, 2. Check and replace as necessary.
or pulleys are bent.
3. Mower blades are out 3. Remove, sharpen, and balance blades.
of balance. See Maintenance Section.
4. Belt installed incorrectly. 4. Reinstall correctly.
Excessive belt wear or breakage. 1. Bent or rough pulleys. 1. Repair or replace.
2. Using incorrect belt. 2. Replace with correct belt.
Troubleshooting, Adjustment & Repair
Not for
Reproduction