REPLACE ELECTRIC FUEL PUMPS -- Continued
Electric fuel pumps for M548A1 and M548A3 are removed and installed the same way.
M548A1 electric fuel pumps are located just inside power plant rear access door. M548A3
electric fuel pumps are located on left side box beam in engine compartment.
There are two types of electric fuel pumps: the Bendix/Facet and Walbro. Both models are
tested, removed, and installed the same way. The Bendix/Facet is shown. Before replacing
Removal procedures for the left and right electric fuel pumps are the same. The left fuel pump
Disconnect circuit 77A lead (1) from left fuel pump capacitor (2).
Disconnect fuel inlet hose (3) from adapter (4) and fuel outlet hose (5) from adapter (6).
Remove two screws (7), three lock washers (8), left fuel pump (9) with capacitor (2) and bracket (10), and fuel pump
bracket (11) from mounting blocks (12). Discard lock washers.
Remove elbow (13) and elbow (14) from left fuel pump (9).