Table 4-1. Preventive Maintenance Checks and Services (cont)

TM 5-6675-312-14

Table 4-1. Preventive Maintenance Checks and Services (cont)

INTERVAL

ITEM TO BE

ITEM

INSPECTED

PROCEDURES

NO.

WMQ

clamps and carrying strap for

defects. Inspect desiccant

for discoloration. Desiccant

should be blue in color.

Theodolite and

Inspect theodolite and tribrach

tribrach

assembly for broken or

assembly

missing parts, cracked or

scratched lenses, loose or

missing hardware, and other

indications of damage. Rotate

the tribrach assembly foot-

screw assemblies and inspect

for rough travel and in-

stability. Inspect the hori-

zontal and vertical drive

screws and the horizontal

and vertical clamps for

proper operation. Inspect

the telescope eyepiece,

reading microscope eyepiece,

and focusing sleeve for

proper operation and

smooth operation throughout

their full travel.

4-3

Index