Removal and Replacement.

TM 11-6625-3023-14/ET904-AA/MMA-010/E154 TS3684/TO 33A1-12-1173-1

a. General Cleaning. Use a dry, clean, lint-free cloth or brush to remove dust or dirt. If necessary, moisten

the cloth or brush with trichlorotrifluoroethane (NSN 6850-00-105-3084). After cleaning, wipe dry with a clean cloth.

WARNING

Compressed air shall not be used for cleaning purposes except where reduced to less than

29 pounds per square inch (psi) and then only with effective chip guarding and personnel

protective equipment.

Do not use compressed air to dry parts when

TRICHLOROTRIFLUOROETHANE has been used. Compressed air is dangerous and can

cause serious bodily harm if protective means or methods are not observed to prevent chip

or particle (of whatever size) from being blown into the eyes or unbroken skin of the operator

or other personnel.

b. Compressed Air. Dry, compressed air, not to exceed 29 psi, may be used, unless otherwise indicated, to

remove dirt and dust from inaccessible places.

5-5.

Touch-up Painting. Remove rust and corrosion from metal surfaces by lightly sanding them with fine

sandpaper. Brush two thin coats of paint on bare metal to protect it from further corrosion. Refer to the applicable

cleaning and refinishing practices specified in TB 746-10.

5-6.

Removal and Replacement.

a. Indicator Lamps. To replace the indicator lamps, unscrew the color lens. The lamp under the red lens (L1)

is a neon lamp type NE-2D. The lamp under the green lens (L2) is a miniature incandescent type No. 344.

Fuse Replacement.

(1)

Replace the fuse if the red lamp fails to light after replacement. The fuse is a 1/2A SLO BLO, 3AG.

(2)

If the fuse continues to blow or the unit does not function, refer to chapter 6 for General Support

maintenance.

5-2