Briggs & Stratton Legacy XL Operator's Manual page 43

Troubleshooting the Mower
PROBLEM
Mower will not raise.
Mower cut is uneven.
Mower cut is rough
looking.
Engine stalls easily
with mower engaged.
Excessive mower
vibration.
Excessive belt wear or
breakage
Mower drive belt slips
or fails to drive.
CAUSE
1. Lift linkage not properly attached or damaged
2. Dirt in hydraulic lines.
1. Mower not leveled properly.
2. Tractor tires not inflated equally or properly.
3. Cutting with attachment lift in raised position.
1. Engine speed too slow.
2. Ground speed too fast.
3. Blades are dull.
4. Mower drive belt slipping because it is oily or
worn.
5. Check PTO (Electric Clutch) Adjustment
6. Blades not properly fastened to arbors.
1. Engine speed too slow.
2. Ground speed too fast.
3. Mower choked with grass.
4. Cutting height set too low.
5. Discharge chute jamming with cut grass.
6. Engine not up to operating temperature.
7. Starting mower in tall grass.
1. Blade mounting screws are loose.
2. Mower blades, arbors, or pulleys are bent.
3. Mower blades are out of balance.
4. Mower choked with grass.
1. Bent or rough pulleys.
2. Using incorrect belt.
3. Excessive debris under cover.
1. Idler pulley spring broken or not properly attached. Repair or replace as needed.
2. Excessive debris under covers.
3. Mower drive belt broken.
REMEDY
Attach or repair.
Change hydraulic system filter.
See Mower Adjustment.
See Maintenance Section.
Lower attachment lift.
Set to full throttle.
Slow down.
Sharpen or replace blades.
See Mower Blade Service.
Clean or replace belt as necessary.
See Adjustments Section.
See Servicing the Mower Blades.
Set to full throttle.
Slow down.
Clean out mower deck.
Cut tall grass at maximum cutting height during first
pass.
Cut grass with discharge pointing toward previously
cut area.
Run engine for several minutes to warm-up.
Start the mower in a cleared area.
Tighten to 45-55 ft.lbs. (61-75 N.m.).
Check and replace as necessary.
Remove, sharpen, and balance blades.
See Servicing the Mower Blades.
Clean out mower deck.
Repair or replace.
Replace with correct belt.
Remove covers and clean out mower deck.
Clean out mower deck.
Replace drive belt.
en
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