Lycoming TEO-540-C1A Maintenance Manual page 132

CAUTION
(4) Apply a cap over oil and fuel hoses and connections to prevent spillage and debris from
entering the engine.
(5) Apply tags to identify ports, clips, tubes, wires, etc. for reference to make correct
connections during engine installation. Identify the location of each part during removal.
Attach a tag to unserviceable parts and units for examination or replacement.
(6) Disconnect the alternator from the engine.
CAUTION
(7) Disconnect the airframe interface wiring harness from the ECU and power box. Refer to
the airframe manufacturer's wiring diagram.
(8) Disconnect the engine-to-firewall wiring harness from the airframe interface wiring
harness at the four firewall connectors (FW1-P1, FW1-P2, FW2-P1, FW2-P2). Matching
connections are identified on both wiring harnesses.
(9) Disconnect and tag the engine wiring bundles and other connections from the following
components in accordance with the airframe manufacturer's instructions.
• The ECU components
• Miscellaneous airframe accessories and instrument connections
• All engine and EECS airframe grounds.
(10) Install protective caps on all electrical connectors.
(11) Disconnect the power control in accordance with the airframe manufacturer's
instructions.
(12) Remove all wiring bundle attaching clamps and hardware.
(13) Remove the manifold pressure gage line and aircraft fuel supply lines in accordance with
the aircraft manufacturer's instructions.
(14) Refer to the aircraft manufacturer's instructions to disconnect any accessory connection
or to remove any external accessories to enable removal of the engine from the aircraft.
(15) Make sure that all wires, lines, and attachments between the engine and airframe are
disconnected and capped.
72-00
Page 102
USE CARE TO PREVENT DUST, DIRT, SAFETY WIRE, SAFETY
CABLE, NUTS, WASHERS OR OTHER FOREIGN MATTER FROM
ENTERING THE ENGINE. DURING ENGINE REMOVAL, IF ITEMS
ACCIDENTALLY FALL INTO THE ENGINE, STOP WORK, FIND
AND REMOVE ALL OF THE DROPPED ARTICLES. USE CORRECT
PLUGS, CAPS, AND OTHER COVERINGS TO COVER EXPOSED
OPENINGS. INSTALL DUST CAPS OVER, NOT IN, TUBE ENDS.
DO NOT PUT TAPE OR PLUGS INSIDE OPEN LINES OR FITTINGS.
USE CAUTION WHEN TOUCHING THE WIRING HARNESS,
SENSORS AND ACTUATORS. THEY CAN BE EASILY DAMAGED.
NONE CAN BE REPAIRED. IF ANY OF THESE ITEMS ARE
DAMAGED, THEY MUST BE REPLACED. IF ONE WIRE BREAKS
ON THE WIRING HARNESS, THE COMPLETE HARNESS WILL
NEED TO BE REPLACED.
TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual
© 2018 Avco Corporation. All Rights Reserved
November 2018