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TM 9-2350-287-20-2
18-22. APU WIRING HARNESS (12329650) REPLACEMENT (continued).
1.
Install wiring harness 12329650 on APU with clamp (6), washer (5), new Iockwasher (4) and screw (3).
2.
Install two clamps (12), new Iockwashers (11), and screws (10) securing wiring harness 12329650 to rear side
of APU.
3.
Install new Iockwasher (16) and screw (15) securing lead 420A (18) at engine low oil pressure switch (17).
4.
Connect lead 420 (13) going to engine oil pressure sending unit (14).
5.
Connect lead 493 (2) to lead attached to engine high air temperature switch (1).
6.
Connect ground lead (9) going to ground lead (8) attached to terminal Eon generator terminal box (7).
FOLLOW-ON MAINTENANCE:
. Install APU (para 18-2).
18-59
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