Fuel Injector Replacement - Lycoming TEO-540-C1A Maintenance Manual

TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual
(4) Make sure the fuel injectors are oriented correctly on the fuel rail. Move the locking clip
to lock each fuel injector to the fuel injector rail.
(5) Safety wire the fire sleeve (Figure 9).
(6) Install the fuel injector rail with the fuel injectors installed (Figure 7) on the engine with
the fuel injectors installed in the fuel injector adapters.
(7) Torque the coupling on each end of the fuel injector rail in accordance with the Standard
Torque Tables in the latest revision of the Service Table of Limits - SSP-1776.
(8) Install the clamps on the fuel injector rail each with a bolt, washer, and new lock washer.
Torque the bolts in accordance with the Standard Torque Tables in the latest revision of the
Service Table of Limits - SSP-1776.
(9) Connect the fuel hoses (A and E or B and D in Figure 7) to the fuel injector rail coupling
at each end of the fuel injector rail. Torque in accordance with the Standard Torque
Tables in the latest revision of the Service Table of Limits - SSP-1776.
(10) Attach the each of the three fuel injector harness connectors to applicable fuel injectors.
(11) Attach the wiring harness to the fuel injector rail with the two clamps, screws, and new
lock nuts. Torque the lock nuts in accordance with the Standard Torque Tables in the
latest revision of the Service Table of Limits - SSP-1776.
(12) Install and tighten the bleed cap on the fuel pressure regulator bleed port.
CAUTION
(13) Look for any fuel leaks. Identify and correct the cause of any fuel leaks. There must not
be any leaks. All fuel connections must be secure and torqued in accordance with the
Standard Torque Tables in the latest revision of the Service Table of Limits - SSP-1776.
(14) If leaks or malfunctions were found and corrected, operate the engine again to make sure
it is operating correctly and there is no leak anywhere.

7. Fuel Injector 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 injector 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 Injector Removal
NOTICE: All three fuel injectors are removed per the "Fuel Injector Rail Assembly Removal"
procedure, regardless of how many fuel injectors are replaced.
(1) Remove the fuel injector rail and the three fuel injectors per instructions in the "Fuel
Injector Rail Assembly Removal" section of this chapter.
(2) Carefully remove the safety wire from the fire sleeve of the fuel injector (Figure 9) to
prevent damage to the fire sleeve.
© 2018 Avco Corporation. All Rights Reserved
November 2018
DO NOT RETURN THE ENGINE TO SERVICE UNLESS THE
ENGINE IS OPERATING CORRECTLY AND DOES NOT HAVE ANY
LEAKS. THERE MUST NOT BE ANY FUEL LEAKS. A FUEL LEAK
CAN CAUSE A FIRE.
73-10
Page 321