EOTech ATPIAL (AN/PEQ-15) - ADVANCED TARGET POINTER ILLUMINATOR AIMING LIGHT - Manual (Page 55)

3-5
3.3 CORRECTIVE MAINTENANCE (Continued)
Replacing Battery Compartment O-Ring
1. Unscrew the battery cap until it comes free of the battery
compartment threads.
2. Use the fingers of one hand to squeeze the battery
compartment o-ring while simultaneously pushing it out of
its retaining groove. Grasp the o-ring with fingers of the
other hand and pull it off the battery compartment
threads.
3. Use a cotton swab dipped in isopropyl alcohol to clean
the o-ring retaining groove of any dirt, grease, or debris.
4. Apply a thin, even coat of fluorinated grease to the
replacement o-ring.
5. Stretch the replacement o-ring over the battery
compartment threads and slip it into its retaining groove.
Figure 3-1. Battery Cap O-Ring.
6. Reinstall the battery cap and tighten.
RETAINING
GROOVE