Scotts S1642 - Manual (Page 59)

Troubleshooting - 55
TROUBLESHOOTING
Mower
IF CHECK
Mower blades will not rotate Obstruction in clutch mechanism, or blades.
Worn/damaged mower drive belt.
Frozen idler pulley.
Frozen blade mandrel.
Discharge Chute Plugging Belt worn or installed incorrectly.
Grass too wet.
Buildup of grass, leaves and trash under mower.
Worn, bent or loose blade.
Mower deck not level.
Engine rpm too low.
Travel speed too fast.
Low/uneven tire pressure.
Blades improperly installed.
Improper blades used.
Patches Of Grass Uncut Travel speed too fast.
Engine rpm too low.
Belt Slipping Debris in sheaves.
Worn belt.
Too Much Vibration Worn, bent or loose blade(s).
Bent blade spindle.
Damaged drive belt.
Blades Scalping Grass Cutting too low.
Turning speed too fast.
Ridges in terrain.
Rough or uneven terrain.
Low tire pressure.
Mower gauge wheels not adjusted correctly.
Bent blade(s).
Uneven Cut Mower not level.
Travel speed too fast.
Blades dull, bent or loose.
Mower gauge wheels not adjusted correctly.
Buildup of grass, leaves, and trash under mower.
Bent blade spindle.