Piper COMANCHE PA-24-180 Service Manual page 508

d
If fuel selector switches are installed. connect wiring and carefully slide the main switch 12. Figure
8-12 or 8-13) on the valve shaft (1) Should the main switch fit loose on the vale shaft. shim the flat of
switch hole with 1 4 x 7 16 pressure sensitive adhesive tape (I I). Spec. PPP-T-60B. Type Ill. Class I.
e
Reinstall the selector handle and rotate it through its various positions. at the same time flushing
the fuel lines
8-18. Cleaning The Fuel System.
a
To flush fuel tanks and selector valve. disconnect fuel line at the carburetor or injector
b
Select a fuel tank. turn on the electric fuel pump(s) and flush fuel through the system until it
is determined that there is no dirt and foreign matter in the fuel valve, lines or tank. During this operation.
agitation of the fuel within the tank
ill help pick up and remo e any dirt. Repeat this procedure for each tank.
c.
When all tanks are flushed. clean the filter assembly.
8-19 Fuel Strainers.
8-20 Fuel Strainer. (PA-24-180 and PA-24-250. Serial Nos 24-1 to 24-2174. 24-2176 to 24-2298) The
fuel bowl and strainer is reached through an access door located under the right foruard section of the
fuselage
a
Close the fuel selector valve
b
Loosen and swing the bowl bail up so that the bowl ma% be removed
c
Remove the bowl gasket. clean the filter screen and check for damage If the screen is punctured
or the wire may be fraying from the screen. it should be replaced. Check the quick drain. if it has been leaking
the "O" ring should be replaced
d
Reinstall the screen, a new gasket. bowl and secure the bail. Safety the bail nut and the bail
8-21 Fuel Strainer. (PA-24-180 and PA-24-250. Serial Nos. 24-2175. 24-2299 and up and PA-24-260)
a Close the fuel selector valve
b
To remove the fuel strainer and sediment bowl. remove the panel at the bottom of the fuselage
c
Loosen the screw securing the bowl clamp. remove the clamp and bowl If it is intended to reuse the
combination screen and bowl seal. be careful not to damage the gasket when separating the bowl from its
housing
d
Clean the bowl. check the drain valve "O" ring. release snap ring securing the screen and clean
screen Check the screen and seal for damage
e
Reinstall the screen and ascertain that the snap ring is secure. Install the bowl. secure and safety
Turn the fuel valve on and determine that the bowl seal is not leaking.
f
Position fuel drain hose and secure the fuselage panel.
g
To remove the strainer assembly. reach through the drain lever access hole in the floor panel.
disconnect fuel lines. remove the screws securing the bowl and lower through the access panel in the bottom
of the fuselage
Revised:
111//82
2J6
F EL SYSTO
2J6
PIPER COMANCHE SERVICE MANUAL