Craftsman EZ 917.270722 Owner's Manual page 30

TROUBLESHOOTING CHART
f
PROBLEM CAUSE
Loss of power (cont'd) • Faulty spark plug,
• Dirty fuel filter.
• Sfale or dirty fuel.
Excessive vibration
Engine continues to
run when operator
leaves seat with at
tachment clutch
engaged
Poor cut - uneven
Mower blades will not
rotate
Poor grass discharge
• Waterinfuai.
• Spark plug wire loose.
• Dirty engine air screen/fins. •
- Dirty/cloggedmuffler. •
• Loose or damaged widng. •
• 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- i "
nism.
• Wom/damaged mower ddve i •
belt.
[
• Frozen idler pulley. ,I•
• Frozen blade mandrel. I "
• Engine speed ton slow. I •
• Travel speed too fast.
• Wet grass.
• Mower deck not level.
• Low/uneven tire air pressure.
• Wom, bent or loose blade.
CORRECTION
• 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 lighten spark plug
wire.
Clean engine air screen/fins.
Clean/replace muffler.
Check all widng.
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.
Replace idler pulley.
Replace bfada mandrel.
Place throttle control in UFAST"
pos on.
Shift to dower speed.
Allow grass to dry before mow-
ing.
• Level mower deck.
• Check tires for proper air pres-
sure.
• Replace/sharpen blade. Tighten
blade bolL
3O