3-7. VISION DEVICES-Continued.
periscope (8) from mount (10).
Stow battery in periscope stowage
box when not in use. Battery may
leak and damage periscope.
If battery power has been used,
dispose of battery in accordance with
SB 11-30 after each night's operation.
Normal battery life is 6 to 8 hours.
ensure battery has been removed.
Reinstall battery cap.
Install snap-on lens cover (6).
Do not expose objective lens to direct sunlight or bright light.
Close and lock driver's hatch.
Remove snap-on lens cover (6) and stow in periscope stowage box.
Remove battery cap (11) and ensure battery has been removed. Reinstall battery cap.