Figure 4-23. Accessory case, unpacked view.

TM5-6675-296-14

TS 6675-296-14/4-23

Figure 4-23. Accessory case, unpacked view.

b. Cleaning

(a) Clean all parts except the lenses with a

(1) Accessory Case. Brush case free of dust

Clean, dampened cloth.

and dirt. Repair or replace as necessary.

(b) Clean the lenses with a soft brush, lens

(2) Telescope and Microscope Eyepieces.

tissue, grain alcohol or acetone. See caution note

(a) Carefully clean the metal parts of the

above.

telescope and microscope eyepieces with a clean,

(4) Sunglass Filter.

dry cloth.

(a) Clean the metal part of the sunglass

CAUTION

filter with soap and water.

Do not use acetone on plastic material

CAUTION

(6) Remove dust or dirt from the lenses with

Do not use acetone on plastic material.

a soft brush, lens tissue, grain alcohol or acetone.

(b) Clean the lens with a soft brush, lens

tissue, grain alcohol or acetone.

(3) Diagonal Eyepieces.

Section IX. MAINTENANCE OF EYEPIECES

4-19. General

focus the crosslines and the objective point. The

microscope eyepiece is used to bring the circle

This section covers the maintenance of the telescope

images into focus.

and microscope eyepieces, diagonal eyepieces,

b. Removal.

sunglass filter, sunshade and autocollimation

(1) Remove microscope eyepiece (fig. 4-24) by

eyepiece with illumination.

turning counterclockwise,

4-20 Telescope and Microscope Eyepieces

(2) Remove telescope eyepiece by turning

a. General. The telescope eyepiece is used to

locking ring counterclockwise.