TROUBLESHOOTING CHART

)ROBLEM

Loss of power (Continued)

Excessive vibration

Englnecontinues to run when

operator leaves seat with attachment

clutch engaged

CAUSE

Build-up of grass, leaves and trash under mower.

Dirty air filter.

Low oil level/dirty oil.

Faulty spark plug.

Dirty fuel filter.

Stale or dirty fuel.

Water in fuel.

Spark plug wire loose.

Dirty engine air screen/fins.

Dirty/clogged muffler.

Loose or damaged wiring.

Carburetor out of adjustment.

Engine valves out of adjustment.

Worn, bent or loose blade.

Bent blade mandrel.

Loose/damaged part(s).

Faulty operator-safety presence control system.

CORRECTION

Clean underside of mower housing.

Clean/replace air filter.

Check oil level/change oil.

Clean and regap or change spark plug.

Replace fuel filter.

Drain fuel tank and refill with fresh gasoline.

Drain fuel tank and carbure- tor, refill tank with fresh

gasoline and replace fuel filter.

Connect and tighten spark plug wire.

Clean engine air screen/ fins.

Clean/replace muffler.

Check all wiring.

See "To Adjust Carburetor"

in Service Adjustments section.

Contact an authorized service center/department.

Replace blade. Tighten blade bolt.

Replace blade mandrel.

Tighten loose part(s). Replace damaged parts.

Check wiring, switches and connections. If not corrected contact an authorized

service center/department.

Poor cut - uneven Wom, bent or loose blade.

Mower deck not level.

Buildup of grass, leaves, and trash under mower.

Bent blade mandrel.

Clogged mower deck vent from build-up of grass, leaves, and trash around mandrels.

Replace blade. Tighten blade bolt.

Level mower deck.

Clean underside of mower housing.

Replace blade mandrel.

Clean around mandrels to open vent holes.

Mower blades will

Obstruction in clutch

Remove

obstruction.

not rotate

 

mechanism.

 

Replace

mower drive belt.

 

Worn/damaged

mower

 

 

drive belt.

 

 

 

 

 

Frozen

idler pulley.

Replace

idler pulley.

 

Frozen

blade

mandrel.

Replace

blade mandrel.

3O

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Craftsman 917.27076 manual Troubleshooting Chart, Roblem