TM 11-5840-217-34-1
CHAPTER 2
PREOPERATIONAL ADJUSTMENTS AND START-STOP
2-1. GENERAL
The adjustments to be made by the operator include only those necessary for tactical operation of the set. It is
assumed that the maintenance man will have previously adjusted the radar for tactical employment; however, the operator
will be required to make various visual checks to insure that the equipment is operating properly. If these checks indicate
equipment malfunctioning, the trouble is to be corrected or repaired by qualified maintenance personnel before operation
of the equipment. The operator is to perform the preoperational adjustments and start-stop procedures exactly as they are
prescribed in paragraphs 2-2 through 2-4.
2-2. PREOPERATIONAL ADJUSTMENTS
a. At the radar set control, set the controls as follows:
INTENSITY ....................................................................................
Midrange
FOCUS ..........................................................................................
Midrange
VERTICAL .....................................................................................
Midrange
SCOPE GAIN.................................................................................
Midrange
VOLUME........................................................................................
Midrange
PANEL light ...................................................................................
Midrange
RCVR GAIN. ..................................................................................
Midrange
MAP SCALE ..................................................................................
1:25K or 1:50K, depending on map used
AUTO-MAN selector ......................................................................
MAN SEARCH (pos 3)
SECTOR WIDTH ...........................................................................
360
RANGE handwheel........................................................................
Arbitrary
MAP ZERO ....................................................................................
Operate position (toward bottom of
radar set control)
b.
At the power supply, set the power switch to the OFF position.
c.
At the shelter power distribution box, check to insure that the MAIN, RADAR, and SHELTER circuit breakers
are set at OFF and that the FANS, LIGHTS, and HEATER switches are set to OFF.
d.
At the receiver-transmitter front panel, set the meter switch to MAG CUR (20 MA FS) and the PANEL LIGHT
switch to OFF. Close the shutter dimmer on each of the four level lights (turn the shutters clockwise).
e.
At the engine generator, check to be sure that the OUTPUT SEI,ECTOR switch is set at 120V, 1PH position.
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