TM 11-6625-3041-12/TO 33A1-8-908-1
2-2. REAR PANEL CONTROLS AND CONNECTORS
Name
Type
Function
Air valve
Pressure
Automatically equalizes air pressure in-
Relief
side the SG-1139 with that outside. May
also be manually operated by means of
pushbutton in the center. This prevents
structural damage to the SG-1139 when
changing altitude, such as during air
transport.
3-pin connector
Provides connection for 115-Vac primary
POWER
line power. Accepts power cable assembly
supplied.
Spring-loaded
Provides connection for heavy gage copper
GND
connector
ground wire (not supplied).