Troubleshooting - Stanley 54FS Owner's Manual

Troubleshooting 36FS, 5 4FS
Problem
Engine will not start
Possible Causes Solution
1. Keyinthe OFF position
2. Insufficient fuel in the tank
3. Air bubble in the fuel line
4. Fuel valve in OFF position
5. Choke not ON
6. Choke linkage out of adjustment
7. Low engine oil
8. Blade control in ON position
9. Loose spark plug wire
10. Fouled spark plug
11. Plugged or dirty air filter
12. Bad gasoline
13. Plugged or dirty fuel filter
14. Safety switches out of
alignment or loose
15. Dead battery (electric start
models)
1. Turn keyto ON position
2. Add gasoline
3. Prime engine or shake bubble out
4. Turn valve ON
5. Turn choke ON
6. Refer to Engine Owner's Manual
7. Add engine oil
8. Push lever to OFFposition
9. Tighten wire or connections
10. Clean or replace the plug
11. Clean or replace the air filter
12. Brain and replace the gasoline
13. Replace the fuel filter
14. Adjust or tighten switches (p. 17) - read warnings!
15. Recharge or replace battery
To test whether the blade activation safety switches
are a contributing factor to the engine not starting,
depress the Operator Presence Switch on the handle
bars while trying to start the engine. If engine starts, a
safety switch adjustment is required
Engine will not keep
running/quits
1. Water in the fuel
2. Loose safety switch
3. Fuel valve is OFF
4. Dirty fuel filter
5. Dirty air filter
6. Low engine oil
1. Drain and replace fuel
2. Adjust switch (p. 17)
3. Turn fuel valve ON
4. Replace fuel filter
5. Clean or replace air filter
6. Add engine oil
Engine stops when blades
are engaged
1. Loose safety switch
2. Belt tension too high
3. Blades jammed with foreign
material
1. Adjust switch (p. 17)
2. Adjust belt(p. 16 and 17)
3. Remove foreign material
Note: Firmly pushing the blade control lever into the
OFF position to ensure the safety switch is fully
engaged can sometimes resolve this problem.
Blades do not turn 1. Broken belt
2. Loose belt
3. Blade activation linkage out of
adjustment.
1. Replace belt
2. Adjust belt(p. 16 and 17)
3. Adjust linkage(p. 13)
Belts squeal when blades 1. Incorrectbelttension
are engaged 2. Excessive belt wear
1. Adjust belt tension
2. Replace belt
Belts slip when blades are 1. Incorrect belt tension
engaged 2. Excessive belt wear
1. Adjust belt tension
2. Replace belt
Rev: Mar2011
STANLEY® Finish Mower
20