Craftsman 28928 - YT 4000 24hp 46" Yard Tractor Operator's Manual page 29

TROUBLESHOOTING CHART:
See appropriate section in manual unless directed to Sears service center
CAUSE
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.
PROBLEM
Engine clicks but
will not start
Loss of power
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.
Excessive vibration
1 Worn, bent or loose blade.
2 Bent blade mandrel.
3 Loose/damaged part(s).
Engine continues to
run when operator
leaves seat with
attachment clutch
engaged
1 Faulty operator-safety presence
control system.
CORRECTION
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 witl-
fresh, 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.
1 Replace blade. Tighten blade bolt
2 Contact a Sears or other
qualified service center.
3 Tighten loose part(s).
Replace damaged parts.
1 Check wiring, switches and
connections. If not corrected,
contact a Sears or other
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