TM 5-6675-250-20
1 - 1 1 . T E C H N I C A L P R I N C I P L E S O F O P E R A T I ON
(Continued)
c.
T r i p o d.
( 1 ) H o l d - d o w n c l a m p ( 1 ).
The three hold-down clamps on the tripod assembly are provided to
(2)
(3)
(4)
secure the GRU to the tripod assembly. A lever on each clamp is provided to release the
GRU when it is necessary to rotate or laterally move the GRU for preorientation or plumbing.
Tripod leg clamps (2).
Leg clamps are provided on each leg of the tripod for controlling the
elevation of the assembly. Loosening the leg clamps permits the center section of the legs
to be extended or retracted for coarse adjustment.
Fine-level adjustment knob (3).
Provisions for leveling the tripod assembly are provided by
fine-level adjustment knobs on each leg.
Tripod circular level (4).
A level vial is provided on the base plate of the tripod to indicate
the coarse level of the assembly.
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