Figure 42. Plate level, disassembly and reassembly.
f. Adjustment. Refer to paragraph 16 and adjust
an approved cleaning solvent. Clean all
threaded surfaces with a brush dipped in
the plate level.
an approved cleaning solvent.
98. Vertical Circle Illumination Prism
(2) Inspect the vial for cracks, etchings, and
a. Removal.
defective bubble. Inspect the plastic vial
(1) Remove the collimation level and lever
cover for cracks, splits, scratches, and
assembly (par. 93).
wear.
(2) Remove the collimation slow-motion
(3) Inspect the brackets for cracks, burs, and
screw (par. 108).
breaks.
(3) Refer to figure 43 and remove the vertical
(4) Inspect the spring for wear and fatigue.
circle illumination prism.
Inspect the plunger for burs and wear.
b. Disassembly.
Refer to figure 44 and
Inspect the screws for worn or damaged
disassemble the vertical circle illumination prism.
threads. Inspect the housing for cracks or
c. Cleaning, Inspection, and Repair.
other defects.
(1) Clean all metal parts with an approved
(5) Remove all burs and replace all defective
cleaning solvent and dry thoroughly.
parts.
(2) Clean the prism with lens tissue or an
d. Reassembly. Refer to figure 42 and reassemble
approved cleaning solvent.
the plate level.
(3) Inspect the prism for chips, cracks,
e. Installation. Refer to figure 41 and install the
scratches, and etching.
plate level.
(4) Replace damaged or defective parts.
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AGO5078A
