Piper COMANCHE PA-24-180 Service Manual page 515

PIPER COMANCHE SERVICE MANUAL
8-30. Electric Fuel Pump. Duke. (PA-24-250 ad PA-24-26 with fuel Inected engine).
The Dukes electric fuel pump has replaced the Bendix Model for use on the PA-24-250 and PA-24-260
aircraft with fuel injected engines. It is a sealed unit and is therefore non-serviceable.
8-31. Removal and Istallation of Electric Fuel Pump. The electric fuel pumps on the PA-24-250 and
PA-24-260 aircraft with fuel injection are located by removing the right forward-most floor panel within
the fuselage. To remove the pump. proceed as follows:
NOTE
When removing fuel pump from aircraft cap all fuel lines to prevent
possible contamination of fuel system.
a. Turn fuel selector valve to the OFF position.
b. Remove the fuel lines from the pump and disconnect th. lectrical leads.
c. Loosen the clamp which secures the fuel pump to the aircraft.
NOTE
Do not attempt to disassemble or repair fuel pump. If the pump is
defective, obtain a replacement pump.
d. To install new fuel pump. place pump in mounting bracket and tighten clamp
e. Reattach fuel lines and electrical leads. Make certain pump has a good ground.
f. Turn on the master switch. pump switch and open the line on the outside of the pump to purge
any air Resecure the line and check for any leaks.
TABLE VIIl-l
POWER REQUIREMENTS.
Nominal 12 V.0 C.
Range 10 to 14 V D.C.
Amperage 5.0 max.
RATING.
50 g.p.h. at 14 psi
BY-PASS PRESSURE DROP
35 pie max. at 40 g.p.h
NO-FLOW PRESSURE
25 psi max.
Specifications. Duke
Modal 4140-00-218 Eleitric Fuel
Pump
FUEL SYSTEM
ADDED: 9/10/79
2J13