Lycoming TEO-540-C1A Maintenance Manual page 350

(5) Loosen the cap on the fuel pressure regulator bleed port to release pressure from the fuel
hoses.
(6) Disconnect the two fuel hoses (identified as A and E or B and D in Figure 7) from the
fuel injector rail assembly coupling at each end of the fuel injector rail assembly to be
removed.
(7) Remove the bolt, washer, and lock washer from each clamp on the fuel injector rail
assembly (Figure 8). Discard the lock washers. Keep the hardware fasteners and clamps.
(8) Cut and remove the safety wire from the fire sleeve on
the fuel injector (Figure 9)
(9) Move the locking clip to unlock each fuel injector
from the fuel injector rail.
(10) Remove the fuel injector rail from the fuel injectors.
(11) Remove the three fuel injectors from the fuel injector
adapters.
(12) Remove the fuel collection container and dispose of
the fuel in accordance with environmental
regulations.
B. Fuel Injector Rail Assembly Installation
(1) Lubricate the fuel injector O-rings with silicone spray.
CAUTION
NOTICE: Make sure the fuel injector(s) to be installed are acceptable.
(2) Install the new lubricated O-ring on each fuel injector.
(3) Install the three fuel injectors (with the fire sleeve installed on the injectors) on the fuel
injector rail.
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Page 320
Figure 8
Fuel Injector Rail Assembly
DO NOT DAMAGE THE FUEL INJECTOR O-RING DURING
INSTALLATION. LOSS OF FUEL SYSTEM PRESSURE AND FUEL
LEAKAGE COULD OCCUR AND CAUSE A POTENTIAL FIRE
HAZARD.
TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual
© 2018 Avco Corporation. All Rights Reserved
Figure 9
Fuel Injector
November 2018