TM 11-5855-250-12&P
Control or indicator
Function
Control or indicator
Function
lamps used to illuminate scales and
cates in mils from -700 to + 1,400.
level.
Azimuth
engagement
Engages or disengages azimuth
lever
handwheel.
Horizontal position
Levels
Indicate when searchlight is level.
engages azimuth drive which allows
Level adjust screws
Used to properly orient level.
azimuth handwheel to mechanically
Azimuth scale
A sliding scale used for proper
rotate searchlight in azimuth.
orientation of searchlight and to
Vertical position disengages azimuth
indicate azimuth of searchlight.
drive and azimuth handwheel which
Indicates in mils from 0 to 6,400.
allows searchlight to be manually
Elevation scale
A sliding scale used for proper
rotated in azimuth.
orientation of searchlight and to
indicate elevation of searchlight.
Indi
Figure 3-1. Operator's controls and indicators (MT-3900A/GSS- 14(V)).
air by the xenon lamp to prevent xenon lamp explosion.
3-3. Blower Inlet and Outlet Ports
The blower inlet and outlet screens must be free of
obstruction for the blower system to operate properly.
The blower motor within the searchlight circulates cool
3-2
