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TM 11-5820-890-30-5
17-20.
Tools:
REPLACEMENT OF ON/OFF SWITCH (CB1).
Cross tip screwdriver
Torque screwdriver
Needle nose pliers
Expendable Supplies:
Solder
References:
Paragraph 17-17 for removal
1/2-inch combination wrench
Torque wrench
Soldering kit
1/2-inch socket
Cotton swabs
Alcohol
and installation of the rear cover assembly (15A1).
ITEM
ACTION
REMARKS
REMOVAL
a. Rear cover assembly (1)
b. ON/OFF switch (CB1)
(7) terminals
c. ON/OFF switch (CB1)
(7), hex nut, switch
plate, and lock ring
d. ON/OFF switch
(CB1) (7)
INSTALLATION
e.
f.
g.
h.
ON/OFF switch
(CB1) (7)
ON/OFF switch
(CB1) (7), hex nut,
switch plate, and
lock ring
ON/OFF switch
(CB1) (7) terminals
Rear cover
assembly (1)
Remove and retain rear cover
Refer to paragraph 17-17
assembly.
for rear cover assembly
removal instructions.
See figure 17-4.
Tag the wire locations on CB1 terminals.
Using soldering kit, desolder tagged wires
from CB1 terminals.
Using 1/2-inch combination wrench,
remove and discard hex nut, switch
plate, and lock ring securing CB1 to
case (3).
Remove and discard defective
ON/OFF switch (CB1) (7).
Obtain replacement ON/OFF
switch (CB1).
Using 1/2-inch combination wrench, install
and hand tighten replacement hex nut,
switch plate, and lock ring securing CB1
to case (3). Using torque wrench and
1/2-inch socket, torque nut to 10 in-lb.
Replacement nut, plate and
locking ring is supplied with
replacement CB1.
Using soldering equipment and needle
Before and after soldering,
nose pliers, attach and solder tagged
clean wires and switch
wires to correct CB1 terminals, and
terminals with alcohol and
remove wire tags.
cotton swabs.
Install retained rear cover
Refer to paragraph 17-17
assembly.
for rear cover assembly
installation instructions.
17-29
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