TROUBLESHOOTING THE MOWER PROBLEM
CAUSE
CORRECTION
Mower will not raise.
•
Lift linkage not properly attached or damaged. Dirt in hydraulic lines.
Attach or repair.
Mower not leveled properly. Tractor tires not inflated equally or properly. Cutting with attachment lift in raised position.
See Mower Adjustment. See Tractor Manual Maintenance Section. Lower attachment lift.
• • •
Engine speed too slow. Ground speed too fast. Blades are dull.
•
Mower drive belt slipping because it is oily or worn. Blades not properly fastened to arbors.
Set to full throttle. Slow down. Sharpen or replace blades. See Mower Blade Service Section. Clean or replace belt as necessary.
• Mower cut is uneven.
• • •
Mower cut is rough looking.
•
Engine stalls easily with mower engaged.
• • • •
Engine speed too slow. Ground speed too fast. Mower choked with grass. Cutting height set too low.
•
Discharge chute jamming with cut grass. Engine not up to operating temperature. Starting mower in tall grass.
• • Excessive mower vibration.
• • •
Blade mounting bolts are loose. Mower blades, arbors, or pulleys are bent. Mower blades are out of balance.
Change hydraulic system filter.
See Mower Blade Service Section.
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 204 ft. lbs. Check and replace as necessary. Remove, sharpen, and balance blades. See Mower Blade Service Section. Clean out mower deck.
•
Mower choked with grass.
Excessive belt wear or breakage.
• • •
Bent or rough pulleys. Using incorrect belt. Excessive debris under cover.
Repair or replace. Replace with correct belt. Remove covers and clean out mower deck.
Mower drive belt slips or fails to drive.
•
Idler pulley spring broken or not properly attached. Excessive debris under covers. Mower drive belt broken.
Repair or replace as needed.
• •
29
Clean out mower deck. Replace drive belt.
