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TM 11-5820-890-30-5
4-18. REPLACEMENT OF POWER SUPPLY (5A1).
Tools:
Cross tip screwdriver
Flat tip screwdriver
Torque screwdriver
ITEM
ACTION
REMARKS
REMOVAL
a. Mounting adapter
b. 17 captive screws
c. Power supply (1)
d. Power supply wires
e. Six screws on terminal
block TB1 (2)
f. Power supply
INSTALLATION
g. Power supply
h. Power supply
(1)
(1)
wires
i.
Six screws on terminal
block TB1 (2)
j. Power supply (1)
and 17 captive screws
Set on work surface with back toward
you.
Using flat tip screwdriver, fully loosen 17
See figure 4-4.
captive screws securing power supply (1)
to mounting adapter chassis (3).
Set power supply (1) with heatsink as-
sembly face down on work surface.
Tag wires as to location on terminal block
TB1. The wire connected to TB1 position 1
is labeled "1".
Repeat for all six wires.
Using flat tip screwdriver, remove and
retain six screws securing power supply
wires to terminal block TB1 (2).
Remove defective power supply and
send to General Support for repair.
Set replacement power supply (1) on work
surface so wires can be connected to
terminal block TB1 (2).
Position tagged wires to terminal block
TB1 (2). The wire labeled "1" connects
to TB1 position 1. Repeat for all six wires.
Using flat tip screwdriver, install and
These were removed in
tighten six retained screws securing pow-
step e.
er supply wires to terminal block TB1.
Remove wire tags.
Hold power supply (1) in place and tighten This was removed in
17 captive screws securing it to mounting
step b.
adapter chassis. Using torque screwdriver,
torque screws to 8 to 10 in-lb.
4-100
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