Simplicity ZT4000 Series - Manual (Page 40)

38 www.simplicitymfg.com
Troubleshooting the Rider continued
PROBLEM CAUSE REMEDY
Engine runs, but rider will not drive.
1. Hydraulic release valve(s) in “open”
position.
2. Belt is broken.
3. Drive belt slips.
4. Brake is not fully released.
1. Turn hydraulic release valve(s) CLOCKWISE to
close.
2. See Drive Belt Replacement.
3. See Problem and Cause below.
4. See authorized service dealer.
Rider drive belt slips.
1. Pulleys or belt greasy or oily.
2. Tension too loose.
3. Belt stretched or worn.
1. Clean as required.
2. Adjust spring tension. See Drive Belt
Replacement.
3. Replace belt.
Brake will not hold.
1. Brake is incorrectly adjusted.
2. Brake pads worn.
1. See Brake Adjustment.
2. Replace with new brake pads.
Rider steers or handles poorly.
1. Steering linkage is loose.
2. Improper tire inflation.
1. Check and tighten any loose connections.
2. See Operation section.
Troubleshooting the Mower
PROBLEM CAUSE REMEDY
Mower will not raise.
1. Lift linkage not properly attached or
damaged.
1. See authorized service dealer for repair.
Engine stalls easily with mower
engaged.
1. Engine speed too slow.
2. Ground speed too fast.
3. Cutting height set too low.
4. Discharge chute jamming with cut grass.
1. Set to full throttle.
2. Decrease ground speed.
3. Cut tall grass at maximum cutting height
during first pass.
4. Cut grass with discharge pointing towards
previously cut area.
Excessive mower vibration.
1. Blade mounting bolts are loose.
2. Mower blades, spindles or pulleys are bent.
3. Mower blades are out of balance.
4. Belt installed incorrectly.
1. Tighten to 70 ft.lbs (94 Nm)
2. Check and replace as necessary.
3. Remove, sharpen and balance blades. See
Maintenance section.
4. Reinstall correctly.
Excessive belt wear or breakage.
1. Bent or rough pulleys.
2. Using incorrect belt.
1. Repair or replace.
2. Replace with correct belt.
Mower drive belt slips or fails to
drive.
1. Idler pulley spring broken or not properly
attached.
2. Mower drive belt broken.
1. Repair or replace as needed.
2. Replace drive belt.
Mower does not engage.
1. Electrical wiring damage.
2. Battery voltage too low.
1. Locate and repair damaged wire.
2. Recharge battery and check alternator. See
Battery Maintenance section.
Troubleshooting