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Page Title:
POWER SUPPLY PS1 REPLACEMENT. |
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 TM 1-6625-735-14
d.
d. Remove nut and washer fastening potenti-
ometer to panel (1).
nals.
e. Install replacement potentiometer to panel using
d. Remove screws, washers, and nuts (57) fastening
washer and nut provided with potentiometer. MAKE
relay K1 to bracket (56).
SURE that antirotation tab on potentiometer is lined
e. Install replacement relay to bracket (56) using
up with small hole in panel next to potentiometer
screws, washers, and nuts (57).
mounting hole.
f. Solder (item 7, Appendix C) wires to relay K1
f. Solder (item 7, Appendix C) wires to potentiom-
terminals. Remove tags.
eter. Remove tags.
g. Install bracket (56) to support assembly (46)
g. Install knob to potentiometer shaft by tightening
using screws, washers, and nuts (55).
Allen-head screw on knob.
h.
h.
POWER SUPPLY PS1 REPLACEMENT.
ROTARY SWITCHES S1, S15, AND S16
REPLACEMENT.
a.
NOTE
b. Tag and disconnect wires to power supply PS1
Procedure is typical.
(67, Figure 5-2).
a.
c. Remove screws and washers (69) fastening power
supply PS1 to support assembly (46).
b. Tag and unsolder wires from rotary switch S1
(17, Figure 5-2).
d. Install replacement power supply to support
assembly (46) using screws and washers (69).
c.
Loosen screw fastening knob to switch shaft.
e.
Connect wires to power supply. Remove tags.
d. Remove nut and washer fastening switch to panel
(1).
f.
e. Install replacement switch to panel using washer
POTENTIOMETERS R1 THROUGH R8
and nut provided with switch. Make sure that antiro-
REPLACEMENT.
tation tab on switch is lined up with small hole in
NOTE
panel next to switch mounting hole.
f. Solder (item 7, Appendix C) wires to switch.
Procedure is typical.
Remove tags.
a. Do paragraph 5.3.
g.
Turn switch shaft fully counterclockwise.
b. Tag and unsolder wires from potentiometer R5
h. Install knob to switch shaft by tightening screw
(3, Figure 5-2).
on knob.
c. Loosen Allen-head screw fastening knob to poten-
i.
tiometer shaft.
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