Troubleshooting - Cub Cadet RZT42 Operator's Manual

Troubleshooting
Problem
Engine [dies rough
Excessive vibration
Uneven cut
Mower will not mulch grass
(If Equipped w/Mulching Kit)
1.
2.
1.
2.
1.
2.
3.
1.
2.
3.
4.
Cause
Spark plug(s) fouled, faulty or gap too wide. 1,
Dirty air cleaner. 2.
Cutting blade loose or unbalanced. 1.
Damaged or bent cutting blade. 2.
Deck not leveled properly. 1.
Dull blade. 2.
Uneven tire pressure. 3.
Engine speed too low.
Wet grass.
Excessively high grass.
Dull blade.
1.
2.
3.
4.
Remedy
Replace spark plug(s). Set plug gap.
Replace air cleaner element and/or clean
pre-cleaner.
Tighten blade and spindle.
Replace blade.
Perform side-to-side deck adjustment.
Sharpen or replace blade.
Check tire pressure in all four tires.
Place throttle/choke control lever in FAST
(rabbit) position.
Do not mulch when grass is wet.
Mow once at a high cutting height, then
mow again at desired height or make a
narrower cutting swath.
Sharpen or replace blade.
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