9-24. REMOVAL OF FUEL FILTER BOWL AND HOUSING.
a. Ascertain that the fuel shutoff is in the off position.
b. Remove the engine cowlings by releasing the cowl fasteners or the attaching screws, depending on the
type installed. Be certain that all electrical leads are disconnected prior to removal of the cowl.
c. Disconnect the fuel lines from the filter bowl housing.
d. Remove the housing of the filter bowl by spreading the ends of the bail wire allowing the housing to be
lifted from the bracket.
9-25. INSTALLATION OF FUEL FILTER BOWL AND SCREEN.
a. Position the top of the filter bowl to the bracket and connect the fuel lines.
b. Spread the bail wire ends and insert them through the holes in the side of the mounting bracket and the top
of the filter bowl.
c. Position the bowl and bail wire, and tighten the bail nut.
d. Safety the bail nut and the bail wire assembly.
e. Install the engine cowling.
9-26. CLEANING AND INSPECTION OF FILTER BOWL SCREEN.
a. Follow steps a, b and d of paragraph 9-24 for removal of the filter bowl.
b. Remove the gasket and screen from the filter housing.
c. Clean the screen and bowl with acetone or a suitable dry type solvent. If damaged, replace screen.
d. Replace the screen followed by a new gasket.
e. Position the bowl and bail wire, and tighten the bail nut.
f. Safety the bail nut and the bail wire assembly.
9-27. ELECTRIC FUEL PUMPS.
9-28. PLUNGER FUEL PUMPS.
9-29. REMOVAL OF FUEL PUMP. The fuel pump may be removed by the following procedure:
a. Remove the cowling by releasing the attaching screws. Be certain all electrical leads are disconnected
prior to removal.
b. Ascertain that the fuel shutoff valve is in the off position.
c. Disconnect the fuel pump electrical leads.
d. Disconnect the fuel lines from the inlet and outlet sides of the pump.
e. Remove the nuts and bolts securing the pump to its mounting bracket and remove the pump.
9-30. DISASSEMBLY 0F FUEL PUMP. ( Refer to Figure 9-6.) The following procedure is given for complete
disassembly of the fuel pump. For cleaning and servicing purposes only, refer to Step a, then proceed to
Paragraph 9-31 for cleaning, inspection and repair of component parts.
a. Cut the safety wire and remove the bottom cover, gasket, magnet and filter screen from the pump.
—NOTE—
If the screen does not come out easy use caution removing it from the
pump housing so as not to damage it.
b. Remove the retainer spring from the plunger tube using thin nose pliers to spread and remove the ends of
the retainer from the tube.
c. Remove the washer, O-ring seal, cup valve, plunger assembly from the pump.
PIPER AIRCRAFT
PA-28-161 CADET
AIRPLANE MAINTENANCE MANUAL
Issued: FEBRUARY. 28, 1989
FUEL SYSTEM
2A20