Removal Of Fuel Cells; Fuel Cells Installation; Fuel Cells Cleaning And Inspection - Piper PA-44-180 SEMINOLE Maintenance Manual

STORAGE.
FUEL CELLS.
REMOVAL OF FUEL CELLS. (Refer to Figure 28-2.)
1. Turn the fuel selector to the off position and drain the fuel cell.
2. Remove the access covers from the top and side of the nacelle, also from underside of wing at rear of
nacelle.
3. Reaching through the side access panel loosen the clamps and disconnect the fitting at the vent line.
4. Reaching through the access panel at the bottom rear nacelle. disconnect the clamp to the finger strainer.
5. Disconnect the wires from the sender unit; remove the bolts that secure the sender and carefully draw the
sender with its gasket from the cell. Note the installed position of the sender.
6. Remove the bolts from the nut rings on the cell.
7. Reaching through the rear access hole, gently separate the velcro type fasteners holding the fuel cell to the
surrounding structures.
8. Place tape or other protective material around the cell access opening to prevent damage to the cell when
removing.
INSTALLATION OF FUEL CELLS. (Refer to Figure 28-2.)
1. With protective material around the cell access opening, install folded fuel cell through access hole and
orientate. reaching through access hole into fuel cell, press outward firmly to engage cell with velcro tape.
2. Install the bolts into the nut rings and torque all bolts to 30 +0 -5 inch-pounds. wait 30 minutes and retorque
to 25± 5 inch-pounds.
3. Noting the position of the sender, place sender with its gasket into cell and install bolts, connect the wires to
the sender.
4. Reaching through the access panel at the bottom rear nacelle connect the clamp to the finger strainer and
torque to 15 inch-pounds.
5. Reaching through the side access panel connect the fitting at the vent line and tighten the clamps to 15 inch-
pounds.
6. Service cell and visually inspect all fittings for leaks.
7. Replace the access covers to the top and side of the nacelle and also at the underside of the wing at the
nacelle.
CLEANING AND INSPECTION OF FUEL CELLS.
1. Fuel cells may be cleaned by the following procedure:
A. New Cells: It should not be necessary to clean new cells upon removing them from their containers. if
they are installed in the airframe cavities promptly. If for any reason the cells are not installed
immediately, and become dirty, they should be cleaned with soap and warm water to remove foreign
material prior to installation in a clean cavity.
PIPER AIRCRAFT
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
— WARNING —
USE A VAPOR PROOF LIGHT FOR INSPECTION.
2B1
2 8 - 11 - 0 3
Page 28-05
Revised: May 15, 1989