TM 10-6640-216-13&P
4-28. REMOVE/INSTALL GAS ALARM SYSTEM -continued.
INSTALLATION
1.
Install gas alarm control unit. See figure 4-20.
a.
Place new gas alarm unit onto conduit located on the curbside wall above first aid kit
and install with four mounting screws.
b.
Connect gas alarm and conduit with conduit locking nut.
c.
Connect flexible conduit from buzzer with conduit locking nut.
d.
Connect terminal wires and tighten terminal screws. Remove tags.
e.
Install circuit board.
f.
Swing panel in and secure with one captive screw.
g.
Close door cover. Tighten captive screw and door latch
2.
Install gas alarm buzzer See figure 4-21.
a.
Place new buzzer on the mount located on curbside wall above first aid kit. Secure with
one mounting screw.
b.
Connect two wires to tapped connection on buzzer. Remove tags.
c.
Align cover plate mounting holes with cover plate screws and install cover.
e.
For calibration procedure, refer to TM 10-6665-297- 13&P.
3.
Install gas alarm detector element. See figure 4-22.
a.
Plug new detector element into detector body.
b.
Install shield assembly over detector element.
c.
Tighten setscrew on shield assembly.
d.
For calibration procedure, refer to TM 10-6665-297- 13&P.
TEST
a.
Connect power inlet cable to Airmobile Laboratory. Turn on electrical power.
b.
Depress the alarm warning test pushbutton located on the gas alarm panel.
c.
Depress the alarm reset pushbutton located on the gas alarm cover.
4-79
