TM 11-5820-890-30-4
3-28. REPLACEMENT OF SWITCHES. Continued
b. Replacement of Rotary Switches (S1 through S6 and S8).
ITEM
ACTION
REMARKS
REMOVAL
a. Knob (1)
b. Wires
Use hex key set. Note position of switch.
Loosen two setscrews securing knob (1)
to switch. Remove and retain knob from
switch. See figure 3-12 (sheet 1).
Note position of all wires soldered to
switch. Use soldering kit. Desolder each
wire from switch.
c. Hex nut and Iockwasher
Use adjustable wrench. Note orientation
of switch. Remove and retain hex nut
and Iockwasher securing switch to test
adapter.
d. Switch (12, 14, 15, 16,
Remove and discard switch.
17, 19, or 21)
INSTALLATION
e. Wires
Use soldering kit. Solder wires to correct
Before and after soldering,
positions of switch.
clean solder joints with al-
cohol and cotton swabs.
f. Switch (12, 14, 15, 16,
Insert replacement switch in test adapter
17, 19, or 21)
with correct orientation.
g. Hex nut and Iockwasher
Use adjustable wrench. Install and tighten
These were removed in
retained Iockwasher and hex nut on switch
step c.
securing it to front panel.
h. Knob (1)
Use hex key set. Put retained knob (1)
This was removed in
on switch with correct orientation. Tight-
step a.
en both setscrews.
3-98
