TM 55-4920-244-14
(2) Solder wiring to terminals in
(1) Install shaft of potentiometer
(13) through opening in deck (128). Install
galvanometers. Install dust cover and screw at
grommet and nut which secure potentiometer in
rear of galvanometer.
deck.
(3) Install galvanometers through
(2) Install knob (12) on potentiom-
opening in deck, taking care not to damage wir-
eter and tighten setscrew.
ing or nearby components.
(4) Install screws which secure gal-
(3) Connect and solder wiring to
proper terminals of potentiometer.
vanometers in deck.
(4) Install deck assembly (para. 4-
a. Reassembly. No reassembly is required.
4-45. Rotary Switches (Figure 4-8).
b. Installation.
a. Reassembly. No reassembly is required
NOTE
b. Installation.
If removed, install new
(1) Install shaft of rotary switches
(10, 16, 34, and 37) through opening in deck
gasket (O ring) on po-
tentiometer.
(128). Install seal nut which secures rotary
switch in deck.
(1) Install potentiometer (19, fig. 4-
(2) Install knobs on rotary switches
8) in deck (128). Install screws which secure po-
and tighten setscrews.
tentiometer in deck.
(3) Connect wiring to proper termi-
(2) Connect and solder wiring to
nals of selector switches and secure with screws
proper terminals on potentiometer.
or solder.
(3) Install knob on potentiometer
(4) Install deck assembly (para. 4-
and tighten setscrew.
(4) Install voltage regulator and BH-
1766 printed circuit board assembly (para.
and
(5) Install deck assembly (para. 4-
a. Reassembly. No reassembly is required.
b. Installation.
CAUTION
a. Reassembly. No reassembly is re-
Failure to provide cover
quired.
for top of deck may result
b. Installation.
in damage from melted
solder or hot soldering
NOTE
iron.
If removed, install new
(1) Connect and solder wiring to
grommet over switch han-
proper terminals of meter (39). Provide several
dle of toggle switch.
thicknesses of cloth or other suitable cover for
( 1 ) Install toggle switch (98)
top of deck (128).
through opening in deck (128). Secure toggle
(2) Install meter through opening in
switch in deck with knurled retaining cap.
deck, taking care not to damage wiring or near-
(2) Connect and solder wiring to
by components.
proper terminals on toggle switch. Tin chromel-
(3) Install screws which secure meter
alumel wire as follows if required:
in deck.
(a) Carefully clean all dust,
grease, and insulation from section to be joined.
(b) Silver solder stripped sec-
a. Reassembly. No reassembly is required.
tion, using silver solder, (item 6, table 1-2),
b. Installation.
and rosin flux, (item 7, table 1-1).
