Sears 917.250551 Lawn Mower User Manual


 
TRO BLESHOOTRNG POmNT$
PROBLEM CAUSE CORRECTION
Engine continues to run
when operator leaves seat
with attachment clutch
engaged
Poorcut-uneven
Mower blades will not
rotate
Poor grass discharge
Headlight(s) not working
(if so equipped)
Battery will not charge
Engine "backfires"
when turning engine
"OFF"
1 Faulty operator-safety presence control system
1 Worn, bent or loose blade
2 Mower deck notlevef
3 Buildup of grass, leaves, and trash under mower
4 Bent blade mandrel
5 Clogged mower deck vent holes from buildup of
grass, leaves, and trash around mandrels
1 Obstruction in clutch mechanism
2 Worn/damaged mower drive belt
3 Frozen idler pulley
4 Frozen blade mandrel
1 Engine speed too slow
2 Travel speed too fast
3 Wet grass
4 Mower deck not level
5 Low/uneven tire air pressure
6 Worn, bent or loose blade
7 Buildup of grass, leaves and trash under mower
8 Mowerdrive beltworn
9 Blades improperly installed
10 improper blades used
11 Clogged mower deck vent holes from buildup of
grass, leaves, and trash around mandrels
1 Switch is "OFF"
2 Bulb(s) burned out
3 Faulty light switch
4 Loose or damaged wiring
5 Blown fuse
1 Bad battery ceU(s)
2 Poor cable connections
3 Faulty regulator (if so equipped)
4 Faulty alternator
Engine throttle control not set at "SLOW"
position for 30 seconds before stopping engine
Check wiring, switches and connections tf not
corrected, contact an authorized service center/
department
1 Replace blade Tighten blade bolt
2 Level mower deck
3 Clean underside of mower ho_Jsing
4 Replace blade mandrel
5 Clean around mandrels to open vent holes
1 Remove obstruction
2 Replace mower drive belt
3 Replace idler pulley
4 Replace blade mandrel
1 Place throttle control in "FAST" position
2 Shift to slower speed
3 Allow grass to dry before mowing
4 Level mower deck
5 Check tires for proper air pressure
6 Replace/sharpen blade Tighten blade bolt
7 Clean underside of mower housing
8 Replace mower drive belt
9 Reinstall blades sharp edge down
10 Replace with blades listed in this manual
11 Clean around mandrels to open vent holes
1 Turn switch "ON"
2 Replace bulb(s)
3 Check/replace light switch
4 Check wiring and connections
5 Replace fuse
1 Replace battery
2 Check/clean all connections
3 Replace regulator
4 Replace alternator
Move throttle control to "SLOW" position and allow
to idle for 30 seconds before stopping engine
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