Armasight NSCCOMR00133DB1 CO-MR GEN 3 Bravo Day/night vision Clip-On system - Manual (Page 34)

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4.4 MAINTENANCE
4.4.1 GENERAL
The section regarding CO-MR operator maintenance consists of operational tests, inspections for unit
serviceability, cleaning and mounting procedures, troubleshooting, and replacement instructions for
a limited number of parts. Maintenance instructions covered elsewhere in this manual (PMCS, trouble-
shooting, etc.) are not repeated in this section.
CAUTION:
The CO-MR is a precision electro-optical instrument, and must be handled carefully at all times
to prevent damage to the device body or mechanisms.
4.4.2 CLEANING PROCEDURES
CAUTION:
Thoroughly dry each item before placing them into the storage case.
Clean the CO-MR and IR850 as follows:
1. Gently brush off any dirt from the device’s body using a clean soft cloth.
2. Moisten the cloth with fresh water and gently wipe external surfaces (except for glass surfaces).
3. Dry any wet surfaces (except for glass surfaces) with another clean, soft, dry cloth.
4. Using a lens brush, carefully remove all loose dirt from the glass surfaces.
5. Slightly dampen a cotton swab with ethanol. Gently and slowly wipe the lenses (including the pho-
toreceiver and LED indicator). Without touching the lens holders, clean the glass surfaces in circular
movements, beginning in the centre and moving out towards the edge. Change the cotton swab
after each circular stroke. Repeat until the glass surfaces are clean.
6. Clean the battery surfaces and contacts with a pencil eraser and/or alcohol-dampened cotton
swabs.
Clean optional equipment with a soft brush (cloth), soap, and water as required.
4.4.3 BATTERY REMOVAL AND REPLACEMENT
Refer to Parts 3.1.1 and 3.1.2 for the CO-MR and IR850 battery installation procedure, respectively.
Replace the remote control batteries as follows:
1. Using a screwdriver, unscrew the four screws (A, Figure 4-6) that affix the cover to the bottom of the
unit. Remove the cover.
2. Replace the batteries with two new ones (CR2016, 3V). Stack the batteries in its place under the leaf
contact spring with the minus contacts directed towards the electric board, as the minus sign etched
on the board indicates.
3. Replace the cover and retighten the screws (A).
FIGURE 4-6. REMOTE CONTROL UNIT. BATTERY INSTALLATION
A