TM 5-6675-250-20
2-8. ASSEMBLY AND PREPARATION FOR USE (Continued)
SETTING-UP GYROSCOPIC REFERENCE
Loosen leg clamp (1) on each leg of
( 2 ) .
UNIT AND TRIPOD
t r i p od
b . E x t e n d e a c h l e g a b o u t o n e - q u a r t e r i n ch
from full extension.
c. Tighten clamps (1) to secure the adjustable
l e g s .
d. Release three hold-down clamps (3).
e . I n s t a l l G R U ( 4 ) i n t r i p o d a n d t i g h t e n t h r ee
hold-down clamps (3).
The legs of the tripod assembly are
hinge-mounted and can swing beyond a
normal standing position. Exercise care
to avoid spreading the legs excessively
and knocking the GRU against the
ground.
f. Spread tripod legs outward to obtain a level
c o n d i t i o n w h i l e s t a n d i n g t h e u n i t i n a v e r t i c a l
position over a selected location.
C O A R S E L E V E L I NG
a. Release one of the tripod leg clamps (1).
b. Adjust leg (2) to obtain a level indication on
tripod circular level (3). Repeat procedure for each
of the other two tripod legs.
2-6
