Piper COMANCHE PA-24-180 Service Manual page 506

REVISED: 11/1/82
PIPER COMANCHE SERVICE MANUAL
g
h.
pressure
Rotate fuel selector to check for smooth operation and to insure proper seating in detent positions
Before reinstalling the salve. it should be checked for leaks and correct operation using 50 PSI a
NOTE
If valhe is submerged in water for test. insure all water is removed
i.
After reinstallation of salve. check operation and for fuel leaks.
8-15. Servicing Five Position Fuel Valve (Hoof). (PA-24-250 and PA-24-260) Normally the five position
valve need only be serviced when there are indications of binding or leakage around the valve shaft (I.
Figure 8-12). at the mating surface of the upper valve body (10) and lower valve body (6) or if reason to
believe that there is leakage through the valve when in an off position. Replacement of "O" rings will
usually correct this condition
a.
With the valve assembly removed from the aircraft. remove the safety wire and disassemble the
valve assembly
b
Check the shaft hole of the
Xalve
bod ( 10) where the"O"ring (2) makes contacts for roughness that
might damage the "0" ring Polish the hole surface to remove any roughness.
INTENTIOALLY LEFT BLANK
INTENTIONALLY LEFT BLANK
FUEL SYSTE
2J4