Power Box Removal - Lycoming TEO-540-C1A Maintenance Manual

TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual
F. Reset the EECS/ECU circuit breaker.
G. Connect the battery.
H. Complete the operational ground check in Chapter 72-00.

17. Power Box Removal

A. Disconnect the battery.
B. Pull the circuit breaker to disconnect power to the EECS/ECU.
C. Disconnect the airframe interface harness plug A002-P1from the power box receptacle
identified as PRI. Refer to Appendix B in this manual.
D. Disconnect the airframe interface harness plug A002-P2 from the power box receptacle
identified as SEC.
E. Remove the power box in accordance with instructions in the airframe maintenance
manual.
18. Power Box Installation
A. Install the power box in accordance with instructions in the airframe maintenance
manual.
B. Connect the appropriate airframe interface harness plug A002-P1 to the power box
receptacle identified as PRI. Refer to Appendix B in this manual.
C. Connect the appropriate airframe interface harness plug A002-P2 to the power box)
receptacle identified as SEC.
D. Reconnect the battery and reset the EECS/ECU circuit breaker.
E. Complete the operational ground check in Chapter 72-00.
19. Permanent Magnet Alternator (PMA) Replacement
NOTICE: The PMA does not have regularly scheduled maintenance procedures. The PMA is not
field repairable. It can only be replaced.
A. PMA Removal
(1) Remove the three nuts, lock
washers, and washers (Figure 43)
that attach the PMA to the
accessory housing. Discard the
lock washers.
(2) Remove the PMA from the
accessory housing.
(3) Remove and discard the O-ring
from the PMA mating surface.
B. PMA Installation
Remove the shaft from the PMA (Figure 45).
(1)
Lubricate the counter-bore inside the PMA body with engine oil (Figure 44).
(2)
© 2018 Avco Corporation. All Rights Reserved
November 2018
Figure 43
Permanent Magnet Alternator
72-70
Page 299