Craftsman EZ3 917.272201 Owner's Manual page 33

TROUBLESHOOTING CHART
PROBLEM CAUSE
Loss of power (cont'd) ° Faulty spark plug,
Excessive vibration
Engine continues to
run when operator
leaves seat with at
tachment clutch
' engaged
Poor cut - uneven
Mower blades will not
rotale
Poor grass discharge
• Dirty fuel filter.
• Stale or dirty fuel.
• Water in fue!.
Spark plug wire loose.
• Dirty engine air screen/fins.
• Dirty/clogged muffler,
,, Loose or damaged wiring,
• Carburetor out of adjustment
m
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
l=
Q
0
0
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 s_ow.
Travel speed too fast.
Wet grass.
Mower deck not level,
Low/uneven tire air pressure.
CORRECTION
• Clean and regap or c'hange _
spark plug.
• Replace fuel filter.
. Drain fuel tank and refili with
fresh gasoline.
• Drain fuel tank and carburetor,
refill tank with fresh gasoline and
replace fuel filter°
• Connect and lighten spark plug
wire.
• Clean engine air screentfins.
• Clean/replace muffler°
• Check all wiring.
• See "70 Adjust Carburetor" in
Service and Adjustments
sectton.
• Contact an authorized service
center.
• Replace blade, Tighten blade
bolt,
• Replace blade mandrel
• Tighten loose part(s), Replace
damaged parts°
I,mHI,u =
• Checl_ wiring, switches and
connections. If not
corrected, contact an autho-
rized service center/
department
• Replace blade. Tighten blade
bolt.
• Level mower deck.
. Clean underside of mower
housing.
. Replace blade mandrel.
• Clean around mandrels to open
vent holes,
• Remove obstruction.
• Replace mower drive belt.
• Replace idler pulley.
, Replace blade mandrel.
• Place throttle control in "FAST"
position,
• Shift to slower speed,,
• Allow grass to dry before mow-
ing
• Level mower deck.
• Check tires for proper air pres-
sure,
33