TM 5-6675-316-14
4-20.5 Replace Momentary Switch.
MOS: 41B, Topographic Instrument Repair Specialist
TOOLS :
9/64 in. Flat Tip Screwdriver
5/8 in. Open End Wrench
Soldering Iron
Multimeter
SUPPLIES: Momentary Switch
Solder (Item 23, Appendix E)
WARNING
Death or serious injury may occur from electrical shock unless power cord
is unplugged before servicing equipment.
a.
Turn power off and unplug power cord.
b. Raise optical ring assembly to maximum height.
c.
Remove cable clamps.
d. Remove nut.
e.
Remove momentary switch and wire by withdrawing through bottom of
optical mount.
f. Tag and desolder wires from switch.
9.
Solder wires to new switch.
4-64