|
| |
TM 11-5820-890-30-5
CAUTION
Steps marked with must be performed exactly as written. They are critical in maintaining
the nuclear hardness of the power supply adapter. Seals must not be damaged. All screws must
be torqued to the limits specified in Appendix B.
14-17. REPLACEMENT OF HEAT SINK ASSEMBLY (8A1).
Tools:
Flat tip screwdriver
Torque screwdriver
Flat tip bit
ITEM
ACTION
REMARKS
REMOVAL
a.
Power supply adapter (1)
b.
18 captive screws (3)
c.
Heat sink assembly (2)
d.
Six screws on terminal
board TB1 (4)
e.
Heat sink assembly wires
f.
Sealing gasket
g.
Heat sink assembly (2)
INSTALLATION
h.
i.
j.
k.
l.
m.
Heat sink assembly (2)
Sealing gasket
Heat sink assembly (2)
Heat sink assembly wires
Six screws on terminal
board TB1 (4)
Heat sink assembly
and 18 captive screws (3)
Set upside down on work surface with rear
toward you. See figure 14-2.
Use flat tip screwdriver.
Fully loosen, and inspect for damage.
If damaged, obtain replacement.
Remove heat sink assembly from power supply
adapter and set on work surface.
Use flat tip screwdriver. Loosen, remove,
and inspect six screws securing wires to
TB1. If damaged, obtain replacement.
Disconnect and label six wires from TB1.
Remove and check for damage. If damaged,
obtain replacement.
Turn in defective heat sink assembly to supply
for disposition.
Obtain replacement heat sink assembly.
Place on replacement heat sink assembly.
Set on work surface so that wires
can be connected to TB1 (4).
Connect to TB1 (4). Wire labeled "1"
connects to TB1 terminal 1. Repeat
for all six wires.
Use flat tip screwdriver. Install and tighten
six retained screws securing wires to TB1.
Use flat tip screwdriver. Hold heat sink
assembly (2) in place on power supply
adapter (1). Install and hand tighten 18
captive screws. Use torque screwdriver.
Torque to 9 in-lb.
14-28
|
