Craftsman 28907 Operation Manual - Page 29

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TROUBLESHOOTING CHART: See appropriate section in manual unless directed to Sears service center PROBLEM CAUSE CORRECTION Engine clicks but will not start Loss of power 1 Weak or dead battery. 2 Corroded battery terminals. 3 Loose or damaged wiring. 4 Faulty solenoid or starter. 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. 10 Spark plug wire loose. 11 Dirty engine air screen/fins. 12 Dirty/clogged muffler. 13 Loose or damaged wiring. 14 Carburetor out of adjustment. 15 Engine valves out of adjustment. 1 Recharge or replace battery. 2 Clean battery terminals. 3 Check all wiring. 4 Check/replace solenoid or starter. 1 Raise cutting height/reduce speed. 2 Adjust throttle control. 3 Clean underside of mower housing. 4 Clean/replace air filter. 5 Check oil level/change oil. 6 Clean and regap or change spark plug. 7 Replace fuel filter. 8 Empty fuel tank and refill tank wigfresh, clean gasoline. 9 Empty fuel tank and carburetor, refill tank with fresh gasoline and replace fuel filter. 10 Connect and tighten spark plug wire. 11 Clean engine air screen/fins. 12 Clean/replace muffler. 13 Check all wiring. 14 See "To Adjust Carburetor" in Service and Adjustments section. 15 Contact a Sears or other qualified service center Excessive vibration 1 Worn, bent or loose blade. 2 Bent blade mandrel. 1 Replace blade. Tighten blade bolt 2 Contact a Sears or other 3 Loose/damaged part(s). qualified service center. 3 Tighten loose part(s). Replace damaged parts. 29

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TROUBLESHOOTING
CHART:
See appropriate
section in
manual
unless
directed
to
Sears service
center
PROBLEM
CAUSE
CORRECTION
Engine
clicks
but
1
Weak
or dead
battery.
1
Recharge
or
replace
battery.
will
not
start
2
Corroded
battery
terminals.
2
Clean
battery
terminals.
3
Loose
or damaged
wiring.
3
Check
all wiring.
4
Faulty
solenoid
or starter.
4
Check/replace
solenoid
or starter.
Loss
of power
1
Cutting
too
much
grass/too
fast.
1
Raise
cutting
height/reduce
speed.
2
Throttle
in "CHOKE"
position.
2
Adjust
throttle
control.
3
Build-up
of grass,
leaves
and
3
Clean
underside
of mower
trash
under
mower,
housing.
4
Dirty
air filter.
4
Clean/replace
air filter.
5
Low oil level/dirty
oil.
5
Check
oil level/change
oil.
6
Faulty
spark
plug.
6
Clean
and regap
or change
spark
plug.
7
Dirty
fuel filter.
7
Replace
fuel
filter.
8
Stale
or dirty
fuel.
8
Empty
fuel tank
and refill
tank
wig-
fresh,
clean
gasoline.
9
Water
in fuel.
9
Empty
fuel tank
and carburetor,
refill
tank
with
fresh
gasoline
and
replace
fuel
filter.
10
Spark
plug
wire
loose.
10
Connect
and tighten
spark
plug
wire.
11
Dirty
engine
air screen/fins.
11
Clean
engine
air
screen/fins.
12
Dirty/clogged
muffler.
12
Clean/replace
muffler.
13
Loose
or damaged
wiring.
13
Check
all wiring.
14
Carburetor
out of adjustment.
14
See
"To Adjust
Carburetor"
in
Service
and Adjustments
section.
15
Engine
valves
out
of adjustment.
15
Contact
a Sears
or other
qualified
service
center
Excessive
vibration
1
Worn,
bent or loose
blade.
1
Replace
blade.
Tighten
blade
bolt
2
Bent
blade
mandrel.
2
Contact
a Sears
or other
qualified
service
center.
3
Loose/damaged
part(s).
3
Tighten
loose
part(s).
Replace
damaged
parts.
29