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TM 11-5820-890-30-5
3-27. REPLACEMENT OF SWITCHES. Continued
b. Replacement of Rotary Switches (S1 through S6 and S8).
ITEM
ACTION
REMARKS
REMOVAL
a. Knob (1)
Note position of switch. Using hex key
See figure 3-12 (sheet 1).
set, loosen two setscrews securing knob
(1) to switch. Remove and retain knob
from switch.
b. Wires
Note position of all wires soldered to
switch. Using soldering kit, desolder
each wire from switch.
c.
Hex nut and Iockwasher
Note orientation of switch. Using adjustable
wrench, remove and retain hex nut and
Iockwasher securing switch to test adapter.
d. Switch (12, 14, 15, 16,
Remove and discard defective switch.
17, 19, or 21)
INSTALLATION
e. Wires
Using soldering kit, solder wires to
correct positions of switch.
Before and after soldering,
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
Using 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)
Place retained knob (1) on switch with
This was removed in
correct orientation. Using hex key set,
step a.
tighten both setscrews.
3-97
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