9-8. FUEL QUANTITY TRANSMITTERS
9-9. REMOVAL OF TRANSMITTERS. (Refer to Figure 9-3.)
a. Ascertain that the fuel tank of the particular unit is empty.
b. Remove the access panel on the lower surface of the wing below the sender unit being serviced at
Wing Station 92-75.
c. Reaching through the access opening, disconnect the electrical lead(s) from the sender unit(s).
NOTE
The inboard and outboard senders are different units in that one unit (Piper
P/N 550 504) requires fiber insulating washers. When removing the bolts
and washers from this unit, be careful not to damage the fiber insulating
washers and make sure when reinstalling the sender, to use the correct bolts
and washers. The fiber washers insulate the unit from the tank assembly.
Refer to Table IX-I for proper fuel sender location.
d. Reaching through the access opening, remove the five bolts and washers securing the sender unit to
the rear surface of the tank.
9-10. INSTALLATION OF TRANSMITTERS. (Refer to Figure 9-3.)
a. Position the sender unit with its gasket on the aft surface of the fuel tank and align the mounting holes
of the unit and mounting plate.
NOTE
If both sender units were removed from the same fuel tank, ensure the
correct repositioning upon reinstallation.
b. Apply Lubon No. 404 sealant to the male threads of the five bolts and secure the sender unit to the
tank. Remove any excess sealant from the bolts before and after installation.
NOTE
Ascertain that the correct arrangement of washers and insulators are used
upon installation of sender units. Torque bolts 20-25 inchpounds.
c. By reaching through the access opening on the lower surface of the wing, connect the electrical leads
to the units.
Revised: 2/13/89
2E17
CHEROKEE ARROW III SERVICE MANUAL
FUEL SYSTEM
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