Craftsman 917.28008 Operator's Manual page 33

TROUBLESHOOTING CHART:
See appropriate section in manual unless directed to Sears service center
PROBLEM
Loss of power
CAUSE
1 Cutting too much grass/too fast.
2 Throttle in "CHOKE" position.
3 Build-up of grass, leaves and
trash under mower.
4 Dirty air filter.
5 Low oil level/dirty oil.
6 Faulty spark plug.
7 Dirty fuel filter.
8 Stale or dirty fuel.
9 Water in fuel.
Excessive vibration
Engine continues to
run when operator
leaves seat with atta-
chment clutch engaged
Poor cut - uneven
cutting
Mower blades will 1
not rotate
2
3
4
10 Spark plug wire loose. 10
11 Dirty engine air screen/fins. 11
12 Dirty/clogged muffler. 12
13 Loose or damaged wiring. 13
14 Carburetor out of adjustment. 14
15 Engine valves out of adjustment. 15
1 Worn, bent or loose blade.
2 Bent blade mandrel.
3 Loose/damaged part(s). 3
1 Faulty operator-safety presence 1
control system.
1 Worn, bent or loose blade.
2 Mower deck not level.
3 Buildup of grass, leaves, and
trash under mower.
4 Bent blade mandrel.
Clogged mower deck vent from 5
build-up of grass, leaves, and
trash around mandrels.
Obstruction in clutch mechanism. 1
Worn/damaged mower drive belt 2
Frozen idler pulley. 3
Frozen blade mandrel. 4
33
CORRECTION
1 Raise cutting height/reducespeed
2 Adjust throttle control.
3 Clean underside of mower
housing.
4 Clean/replace air filter.
5 Check oil level/change oil.
6 Clean & regapor changesparkplug
7 Replace fuel filter.
8 Empty fuel tank and refill tank wig-
fresh, clean gasoline.
9 Empty fuel tank and carburetor,
refill tank with fresh gasoline and
replace fuel filter.
Connect & tighten spark plug wire
Clean engine air screen/fins.
Clean/replace muffler.
Check all wiring.
See "To Adjust Carburetor" in
Service and Adjustments section.
Contact a Sears or other qualified
service center.
1 Replace blade. Tighten blade bolt
2 Contact a Sears or other qualified
service center.
Tighten loose part(s).
Replace damaged parts.
Check wiring, switches and
connections. If not corrected,
contact a Sears or other
1 Replace blade. Tighten blade bolt
2 Level mower deck.
3 Clean underside of mower
housing.
4 Contact a Sears or other
qualified service center.
Clean around mandrels to
open vent holes.
Remove obstruction.
Replace mower drive belt.
Replace idler pulley.
Contact a Sears or other
qualified service center.