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TROUBLESHOOTING CHART
'PROBLEM CAUSE
Loss ofpower (cont'd) • Build-up of grass, leaves and
trash under mower,
• Dirty air filter.
• Low oil level/dirty oil
• Faulty spark prug.
• Dirty fuel titter..
, Stale or dirty fuel
• Water In fuel,
r " Spark plug wire loose,
Excess'rve'vi%'TatiS'........
• Dirty engine air screentfins,
• Dirtylclogged muffler,
• Loose or damaged wiring.
° Carburetor out of adjustment,,
Engine continues to
run when operator
leaves seat with at-
tachment clutch
uengaged .........
Poor cut - uneven
:_eorcut- uneven
(cont'd)
Mower blades will not
rotate
Poor grass discharge
Engine valves out of adjust-
ment,
Worn, bent or loose blade..
o
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 buildup of
grass, leaves, and trash
around mandrels.
• Obstruction in clutch mocha*
nlsm.
,, Wornldamaged mower drive
belt.
• Frozen idler pulley,
• Frozen blade mandrel,
'O
Engine speed too slow.,
Travel speed too fast,
Wet grass.
CORRECTION
• Clean underside of mower hous-
ingo
• Clean/replace air filter,
• Check oil leveVchange oil,
, Clean and regap or change
spark plug..
,, P,ep_ace_uet,_i_er.
• Drain fuel tank and refill with
_resh gasoline,
• Drain fuel tank and carburetor,
refill tank with fresh gasoline and
replace fuel rifler.
• Connect and tighten spark plug
were.
• Clean engine air screen/fins.
° Cleardreplace muffler.
• Check all wiring.
• See "ToAdjust Carburetor" in
Service and Adjustments
section,
• Contact an authorized service
__ _center- ..............................
• Replace blade. Tighten blade
bolL
° Replace blade mandrel,
• Tighten loose part(s), Replace
damaged parts.
• Check wiring, switches and con-
nections. If not
corrected, contact an authorized
service center/
....depadment.
, Replace blade, Tighten blade
bolt.
• Level mowerdeck,
° Clean underside of mower hous-
,!ng.
. 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,
32
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