TM 5-6675-330-12&P
SECTION III
OPERATING PROCEDURES
Operating Instructions
1. Preliminary Set-up
(a] Set up tripod and plumb accurately over the
point from which the distance measurement is to
be made.
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NOTE:
Set up over the point very carefully; Inaccurate set-
up is usually the cause of measurement errors.
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(b) Adjust the tribrach leveling screws as required
to center the tribrach leveling bubble, Make the
leveling adjustment accurately. Remove theodolite
and mount instrument on tribrach. Check tribrach
leveling bubble; readjust if necessary.
(c) Adjust vertical lock (14) and horizontal lock (19)
firmly enough to allow holding action, but free
enough to permit movement of the instrument
under pressure.
(d) Place battery pack into instrument (21) or us-
auxiliary power cable connect to remote 12vdc
power source.
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Figure 6- Controls
