Snapper 18HP Troubleshooting The Mower, Troubleshooting, Adjustments, & Service, not drive

Models: 20HP, 19HP, 18HP 18HP

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Troubleshooting, Adjustments, & Service

Troubleshooting, Adjustments, & Service

Rider Troubleshooting Continued.

PROBLEM

CAUSE

REMEDY

Engine runs, but rider will

1.

Hydraulic release valve(s)

1. Turn valve(s) clockwise to close.

not drive.

 

in “open” position.

 

 

2.

Belt is broken.

2. See Drive Belt Replacement.

 

3.

Drive belt slips.

3. See problem and cause below.

 

4.

Brake is not fully released.

4. See authorized service dealer

 

 

 

 

Rider drive belt slips.

1.

Pulleys or belt greasy or oily.

1. Clean as required.

 

2.

Tension too loose.

2. Adjust spring tension.

 

 

 

See Drive Belt Replacement

 

3.

Belt stretched or worn.

3. Replace belt.

 

 

 

 

Brake will not hold.

1.

Brake is incorrectly adjusted.

1. See Brake Adjustment.

 

2.

Brake pads worn.

2. Replace with new brake pads.

 

 

 

 

Rider steers or handles poorly.

1.

Steering linkage is loose.

1. Check and tighten any loose connections.

 

2.

Improper tire inflation.

2. See Regular Maintenance Section.

 

 

 

 

TROUBLESHOOTING THE MOWER

PROBLEM

CAUSE

REMEDY

Mower will not raise.

1.

Lift linkage not properly attached

1. See authorized service dealer for repair.

 

 

or damaged.

 

 

 

 

 

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 jamming

4. Cut grass with discharge pointing toward

 

 

with cut grass.

previously cut area.

 

 

 

 

Excessive mower vibration.

1.

Blade mounting bolts are loose.

1. Tighten to 70 ft.lbs. (94 Nm).

 

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.

 

 

 

 

Mower drive belt slips

1.

Idler pulley spring broken or not

1. Repair or replace as needed.

or fails to drive.

 

properly attached.

 

 

2.

Mower drive belt broken.

2. Replace drive belt.

 

 

 

 

Mower does not engage.

1.

Electrical wiring damage.

1. Locate & repair damaged wire.

 

2.

Battery voltage too low.

2. Recharge battery and check alternator.

 

 

 

See Battery Maintenance section.

Troubleshooting

29

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Snapper 18HP Troubleshooting The Mower, Troubleshooting, Adjustments, & Service, Rider Troubleshooting Continued