Craftsman EZ3 917.273022 Owner's Manual page 33

TROUBLESHOOTING CHART
PROBLEM
Loss of power
CAUSE
• Cuffing too much grass,_oo
fast.
• Throttle in "CHOKE" position.
• Build-up of grass, leaves and
CORRECTION
• Set in "Higher Cut" posi-
fion/reduce speed.
• Adjust throttle control.
• Clean underside of mower hous-
trash under mower.
• Dirty air tilter.
• Low oil level/dirty oil.
• Faulty spark plug.
• Dirty fuel tilter.
• Stale or dirty fuel.
• Water in fuel.
• Spark plug wire loose.
• Dirty engine air screen/fins.
• Dirty/clogged muffler.
• Loose or damaged wiring.
ing.
• 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 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.
Excessive vibration
Engine continues to
run when operator
leaves seat with at
tachment clutch
engaged
Poor cut-- uneven
Mower blades will not
rotate
Carburetor out of adjustment.
Engine valves out of adjust-
ment.
Worn, bent or loose blade.
Bent blade mandrel.
Loose/damaged part(s).
Faulty operator-safety pres-
ence control system.
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 buildupof
grass, leaves, and trash
around mandrels.
• Obstruction in clutch mecha-
nism.
• Worn/damaged mower drive
belt.
• 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
damaged 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 around mandrels to open
vent holes.
• Remove obstruction.
• Replace mower drive belt.
33