TM 5-6675-250-20
2-16. DETERMINATION OF AZIMUTH VALUE FOR REFERENCE MIRROR (Continued)
L O C A T I O N / l T E M
A C T I O N
R E M A R K S
N O T E
Check to ensure that the plumbing position is still over the fixed reference
point.
i.
Tighten each of the three hold-down clamps
(4) on the tripod.
2.
P o w e r c a b le
i n s t a l l a t i on
a .
Connect interconnect cable (1) to the ECU (2)
and GRU (3).
b.
Connect DC Power cable (4) to the POWER
receptacle (5) on ECU (2) and a 22-33 Vdc
power source.
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