Craftsman 917.271110 owner manual Correction, Excessivevibration, Poorcut uneven Conrd

TROUBLESHOOTING CHART

PROBLEM CAUSE

Loseofpower(cont'd)• Build-up of grass, leaves and trash under mower.

•Dirty air filter.

•Low oil level/dirty oil.

•Faulty spark plug.

CORRECTION

•	Clean underside of mower hous-
	ing.
•	Clean/replace air filter.
•	Check oil level/change oil.
•	Clean and regap or change
	spark plug.

Excessivevibration

Engine continues to run when operator leaves seat with at- tachment clutch

engaged

Poor cut - uneven

Poorcut - uneven

(conrd)

Mower blades will not rotate

Poor grass discharge

•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 adjust- ment.

•Worn, bent or loose blade.

•Bent blade mandrel.

•Loose/damagedpart(s).

•Faultyoperator-safetypres- ence controlsystem.

•Worn, bent or loose blade.

Mower deck not level.

Buildup of grass, leaves, and trash under mower.

Bent blade mandrel. Clogged mower deck vent holes from buildup of

grass, leaves, and trash around mandrels.

Obstruction in clutch mecha- nism.

Worn/damaged mower drive belt.

Frozen idler pulley.

Frozen blade mandrel.

Engine speed too slow.

•	Replace fuel filter.
•	Drain fuel tank and refill with
	fresh gasoline.
•	Drain fuel tank and carburetor,
	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 and Adjustments
	section.
•	Contact an authorized service
	center.
•	Replace	blade.		Tighten blade
	bolt.
•	Replace blade mandrel.
•	Tighten loose part(s). Replace
	Jama_led parts.
•	Check wiring, switches and con-
	nections. If not
	corrected, contact			an authorized
	service center/
	department.
•	Replace	blade. Tighten blade
	bolt.
•	Level mower deck.
•	Clean underside of mower hous-
	ing.
•	Replace	blade mandrel.
•	Clean.mound		mandrels to open
	vent holes.
•	Remove obstruction.
•	Replace	mower drive belt.
•	Replace	idler pulley.
•	Replace	blade mandrel.
•	Place throttle		control in "FAST"

positS.

Travel speedtoo fast.

Wet grass.

•Shift to dower speed.

•Allow grass to dry before mow- ing.

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