Sears 917.251551 Lawn Mower User Manual


 
TROU LESHOOTING POINTS
i ii
PROBLEM
Engine continues to run
when operator leaves seat
with attachment clutch
engaged
Poor cut - uneven
i illl,rl , ,.,i i,j,i,
Mower blades will not
rotate
Poor grass discharge
Headtight(s)not wetIcing
(if so equipped)
Battery will not charge
Engine "backfires"
when turning engine
"OFF"
CAUSE
I. Faulty operator_safety presence control system
1. Worn, bent orloose b]ade_
2. Mower deck not level
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
t Obstruction in clutch mechanism
2 Worn!damaged mower drive belt
3 Frozen idler puIIey.
4. Frozen blade mandrel
Engine speed too stow,
2 Travel speed too fast.
3.. Wet grass
4. Mower deck notlevel
5 Lowtuneven tire air pressure
6. Worn, bent or loose blade
7.. Buildup of grass, leaves and trash under mower
8 Mower drive belt worn,.
9 Blades improperly installed.
10 improper blades used,
tt. Clogged mower deck vent holes from buildup of
grass, leaves, and trash around mandrels.
1 Switch is "OFF"
2. Bulb(s) burned out
3 Fautty light switch
4. Loose or damaged wiring
5 Blown fuse
............................ i
t Bad battery cell(s),
2. Poor cable connections.,
3. Faulty regulator (if so equipped).
4. Faulty alternator,
CORRECTION
........ .................. .......... i,,II,IH,II,I .......
1. Check wiring, switches and connections. If not
corrected, contact an authorized service center/
department
1 Replace blade. Tighten blade bolt
2 Level mower deck.
3,. Clean underside of mower housing
4 Replace blade mandrel.
5 Ciean around mandrels to open vent holes
t Remove obstruction,,
2 Replace mower drive belt,
3 Replace idler pulley.
4, Replace blade mandrel.
1 Place throttle control in "FAST" position.
2. Shift toslower speed.
3 Allow grass to dry before mowing
4 Level mowerdeck
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
t0 Replace with btades listed tn 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 altematof,
1 Engine throttle control not set at "SLOW"
position for 30 seconds before stopping engine
1 Move tt';rotttecontrol to "SLOW" position and allow
to idle for 30 seconds before stopping engine,
3O