TM 9--2350--292--10
VISION DEVICES MAINTENANCE
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THIS WORK PACKAGE COVERS:
Care and Handling of Vision Devices, Cleaning Vision Device Lens, M17 Periscope Replacement
INITIAL SETUP:
Materials/Parts
Paper, lens tissue (item 35, WP 0130 00)
Personnel Required
Three
References
TM 11--5855--249--10
WP 0130 00
CARE AND HANDLING OF VISION DEVICES
1. For care and handling of passive night viewer AN/VVS--2(V)1A see TM 11--5855--249--10.
2. Vision devices are generally rugged, but mishandling will result in damage to the equipment.
3. Touch up scratched or chipped areas that expose bare metal. Never paint the whole device.
CLEANING VISION DEVICE LENS
1. Keep lenses clean and dry. Proper care will ensure good vision. See step (4).
2. It is prohibited to clean lenses and windows with liquid, pastes or abrasives.
3. Use lens tissues (item 35, WP 0130 00) only to wipe lenses and windows.
4. Keep lenses free of oil or grease. Do not touch lenses or windows with fingers. Use alcohol on lens tissue to
remove grease or oil. If no alcohol is available, use lens tissue.
M17 PERISCOPE REPLACEMENT
1. Loosen wing nut (1) and turn retainers (2) until they clear periscope (3).
2. Pull down on periscope (3) to remove it from recess.
3. Insert periscopes (3) into recess and push it into place.
4. Turn retainers (2) until they contact the periscope (3) and tighten wing nuts (1).
1
2
3
END OF TASK
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