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 TM 55-1905-223-24-18-1
2-134.
Replace/Repair Interface Unit Assembly.
a. Removal, b. Repair, c. Replacement.
This task covers:
INITIAL SETUP
Equipment Condition
Tools
Electrical power to controls system
T o o l kit, electrician's,
secured and tagged "Out of Service -
Do Not Operate" at ship service
switchboard. (TM 55-1905-223-10)
Materials/Parts
Electromagnetic relay
P/N 91-1000-000
Electromagnetic relay
P/N 91-1011-000
Warning tag, Item 1, Appendix C
REMOVAL
Loosen captive screws (1) and open cover (2) on enclosure (3).
a.
Remove relay retainers (4, 5).
b.
Remove electromagnetic relays (6, 7).
c.
Repair at this level of maintenance is by replacement of electromagnetic relays
(6, 7).
Install electromagnetic relays (6, 7).
a.
I n s t a l l relay retainers (4, 5).
b.
c.
Close cover (2) on enclosure (3) and tighten captive screw (1).
Remove tag and turn on electrical power to interface unit assembly.
d.
Change 1
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