Se c t ion V . T RI BRACH ASSEM BLY
(1) Press the lock plate lever downward
2 6 . Ge ne ra l
and to the right, and remove the
The tribrach assembly, on which the target
assembly is mounted, consists of the tribrach
target assembly from the tribrach
assembly and base plate assembly. The tribrach
assembly.
assembly enables the operator quickly and
(2) Unscrew and remove the tribrach
accurately to secure the target set to, and
assembly from the tripod central fix-
remove it from, the preleveled base attached to
ing screw.
the tripod head. This section contains mainte-
nance functions which organizational `mainte-
b. Replace. Replace a defective tribrach as-
nance personnel must perform on the tribrach
sembly with a serviceable one.
assembly.
c. Installation. Reverse the procedures de-
2 7 . T ribra c h Asse m bly
scribed in a above.
a. Removal. Refer to figure 4 and remove the
tribrach assembly as follows.
Se c t ion V I . I LLU M I N AT I ON ASSEM BLY AN D REFLECT OR
2 9 . I llum ina t ion Asse m bly
2 8 . Ge ne ra l
a. Repair. Replace a defective lamp ( para
The illumination assembly consists of a cable,
20).
lamp housing, incandescent lamp, male plug,
b. Replacement. Replace a defective illumi-
cable sleeve, and lamp socket. The reflector
nation assembly with a serviceable assembly.
(fig. 5) is square shaped and made of pressed
steel. This section contains maintenance func-
3 0 . Re fle c t or
tions which organizational maintenance person-
a. Repair. Repaint worn spots.
nel must perform on the illumination assembly
b. Replacement. Replace a defective reflec-
tor with a serviceable one.
and the reflector.
AGO 10139A
