Fuel Pump Filter Replacement - Lycoming TEO-540-C1A Maintenance Manual

TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual

9. Fuel Pump Filter Replacement

WARNING DO NOT SMOKE OR HAVE AN OPEN FIRE FLAME OR USE ANY DEVICE
THAT CAN MAKE SPARKS. FLAMES OR SPARKS CAN CAUSE FUEL
IGNITION WHICH CAN CAUSE SERIOUS BURNS, INJURY OR DEATH.
NOTICE: If this fuel pump filter replacement procedure is completed with the engine installed in
the airframe, refer to the airframe manufacturer's instructions for shutting off the fuel
and grounding the aircraft.
A. Fuel Pump Filter Removal
(1) Put a fuel collection container under the
engine where the fuel hose connects to the
fuel pump filter (Figure 10).
(2) Loosen the cap on the fuel pressure
regulator bleed port to release pressure
from the fuel hoses.
(3) Disconnect the fuel outlet hose from the
fuel pump filter.
(4) Loosen and remove the fuel pump filter
from the adapter.
(5) Remove and discard the O-ring from the
fuel pump filter.
(6) Clean the fuel pump filter per Chapter 05-
30.
(7) Remove the fuel collection container and
dispose of the fuel in accordance with
environmental regulations.
B. Fuel Pump Filter Inspection
(1) Complete the "Fuel Pump Filter Removal" procedure in this chapter.
(2) Examine the fuel pump filter (Figure 10) for dents, damage, dirt, and contamination.
(a) If metal particles are found, identify the source and correct the cause of the problem.
(b) If the fuel pump filter is damaged, replace the fuel pump filter.
(3) Clean the fuel pump filter per instructions in Chapter 05-30.
(4) Complete the "Fuel Pump Filter Installation" procedure in this chapter.
C. Fuel Pump Filter Installation
CAUTION
NOTICE: A new O-ring must be installed every time the fuel pump filter is installed. The O-
ring must be replaced if the fuel pump filter is re-installed.
(1) Install the new O-ring (Figure 10) on the fuel pump filter.
© 2018 Avco Corporation. All Rights Reserved
November 2018
DO NOT DAMAGE THE FUEL PUMP FILTER O-RING DURING
INSTALLATION. LOSS OF FUEL SYSTEM PRESSURE AND FUEL
LEAKAGE COULD OCCUR CREATING A POTENTIAL FIRE HAZARD.
Figure 10
Fuel Pump
73-10
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