EOTech ATPIAL (AN/PEQ-15) - ADVANCED TARGET POINTER ILLUMINATOR AIMING LIGHT - Manual (Page 57)

3-7
3.3 CORRECTIVE MAINTENANCE (Continued)
7. Simultaneously stretch and pull the larger eye of the
battery cap lanyard over the battery cap threads. Work
the lanyard until it is seated neatly in the groove closest to
the ATPIAL housing.
8. Stretch the o-ring over the battery compartment threads
and slip it into its retaining groove (see Figure 3-1).
9. Reinstall the battery cap and tighten.
Replacing IR Illuminator Diffuser Lens Cap
1. If applicable, remove the old lens cap by pulling it off the
ATPIAL housing.
2. Stretch the looped end of the replacement lens cap
around the Illuminator Focus Ring.
3. Work the looped end down the Focus Ring toward the
ATPIAL housing, until it is seated neatly in its retaining
groove.
4. Flip the lens cap up and over the IR Illuminator.
Figure 3-3. Replacing IR Illuminator Diffuser Lens Cap.