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TM 9-2350-287-20-2
18-18. APU STARTER RELAY REPLACEMENT.
This Task Covers:
a. Removal
b. Installation
Initial Setup:
Tools/Test Equipment:
MASTER switch set to OFF (refer to
General mechanics tool kit (Item 24,
TM 9-2350-287-10).
Appendix I)
Battery ground cables disconnected
(para 7-41).
Materials/Parts:
APU compartment side door opened
Lockwasher (2) (Item 137, Appendix H)
(refer to TM 9-2350-287-10).
Lockwasher (2) (Item 138, Appendix H)
Equipment Conditions:
Vehicle parked on level ground (refer to
TM 9-2350-287-10).
a.
1.
2.
3.
b.
1.
2.
3.
REMOVAL
Disconnect cable assemblies (1, 6, and 7)
from auxiliary power unit (APU) starter
relay (8).
Remove two screws (10) and Iockwashers
(9) and relay (8) from support (5). Discard
Iockwashers.
Remove two screws (2) and Iockwashers
(3) and support (5) from APU (4). Discard
Iockwashers.
INSTALLATION
Install support (5) on APU (4) with two new
Iockwashers (3) and screws (2).
Install relay (8) on support (5) with two new
Iockwashers (9) and screws (10).
Connect cable assemblies (1, 6, and 7) to
relay (8).
FOLLOW-ON MAINTENANCE:
Connect battery ground cables (para 7-41).
Close APU compartment side door (refer to
TM 9-2350-287-10).
18-47
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