Craftsman 917.272020 Owner's Manual page 32

PROBLEM
Loss o fpower (cont'd)
TROUBLESHOOTING CHART
CAUSE
o Bui_doup ofgrass _ eaves and
trash u nder mower,
* Dirty air fJtter_
Low oil level/dirty oi!.
Faulty spark plug.
it n
I Excesswe vibratio
i
Engine continues to
run when operator
leaves sea£ with at*
tachment ciutch
Poor cut - uneven
Poor cut- uneven
(cont'd)
!
Mower blades will not
rotate
Poor grass discharge
o Dirty fuel filter,
o Stale or dirty fuel.
o Water in fuel.
Spark plug wire loose.
. Dirty engine air screenlfins.
Dir_/c!ogged muffler.
Loose or damaged wiring.
Carburetor out of adjustment.
o Engine valves out of adjust-
ment
o Wor% bent or loose blade.
Bent blade mandrel.
o Loose/damaged pad(s),
Faulty operator*safety pres-
ence controt system.
o Wom, bent or loose blade
- Mo_¢er deck not _eveL
Buildup,of grass, leaves and
trash under mower.
Bent blade mandrel.
C_ogge_ mower deck vent
holes from buildup of
grass, leaves, and trash
around mandrels.
Obstruction in clutch mecha-
nism,
- Worn/damaged mower drive
beJt
° Frozen idler pulley.
o Frozen blade mandrel
Engine speed too slow.
Trave_ speed too fast.
Wet grass.
32
CORRECTION
Clean underside of mower hous_
ng.
o C_ean/replace air filter.
Check oil level/change oil.
• Clean and regap or change
spark plug
o Replace fue_ filter.
Drain fuel tank and refilf with
fresh gasoline.
o Drain fuel tank and carburetor,
refill tank with fresh gasoline and
reptace fue! filter.
Connect and tighten spark plug
wire.
. Clean engine air screenlfins.
Clean/replace muffler.
Check al_wiring,
- See _'ToAdjust Carburetor" in
Service and Adjustments
section
o Contact an authorized service
center.
Replace biade. Tighten blade
boil.
o Replace blade mandrel.
- Tighten loose part(s). Replace
S.
Check wiring, switches and con-
nections, tf not
corrected, contact an authorized
service center/
_adment
Replace blade. Tighten blade
bolt.
. Leve_ mower deck,
C_ean underside of mower hous-
Replace blade mandrel.
o C_ean around mandrels to open
vent holes.
Remove obstruction,
- Replace mower drive belt.
. Replace idler pulley.
Replace blade mandrel.
_throttle co_ "FAST"
position,
. Shift to slower speed.
- Allow grass to dry before mow-
ing,