2.2 Preventive Maintenance Checks and Services (PMCS)
OPERATOR LEVEL MAINTENANCE
The operator is limited to replacing batteries and cleaning the battery compartment and outer housing
surfaces of the sight.
REPLACING BATTERIES
See the heading ‘Replacing Batteries’ under section Description of Components, Controls, and Indicators.
Do not use deteriorated or corroded batteries. Inspect batteries for rips, tears, or cuts in the housing. If there
is any exposed, internal content of the battery, it could potentially effect the operation of the sight.
OPERATOR CLEANING INSTRUCTIONS
1. The windows of the sight are coated with anti-reflection material. When cleaning the glass surfaces, first
blow away any dirt and dust. Fingerprints and lubricants can be wiped off with lens tissue or a soft cotton
cloth, moistened with lens cleaning fluid. Never clean the glass surface with a dry cloth or paper towel;
always dampen the glass surfaces prior to cleaning.
2. No maintenance of the sight’s surface is required, other than wiping off with a soft cloth. If needed, use
only a water-based cleaner such as glass cleaner, ammonia, or soap and water. Never use any solvent-type
cleaner such as alcohol or acetone. Do not use gun cleaner to clean or lubricate the sight.
3. All moving parts of the sight are permanently lubricated. Do not try to lubricate them.
4. Never disassemble the sight’s optical assembly. The optical cavity is nitrogen filled and sealed to
achieve fog-proof performance. Disassembly will void the warranty and damage the sight.
2.3 Troubleshooting
The following section outlines measures the operator can take in the event of the named failure.
Failure: The sight will not power up
Corrective Action 1: Ensure that the batteries are inserted properly according to the diagram on the
bottom of the battery cap.
Corrective Action 2: Replace the batteries with new, unused batteries that contain a full charge.
Corrective Action 3: Inspect the battery contact points in both the battery cap and on the sight itself.
These contact points are spring loaded and surrounded by a rubber gasket that may catch the
spring. Manipulate the contact points gently and ensure they are at or above the surface of the
rubber gasket.
Corrective Action 4: Reset the electronics by removing all power; i.e the battery cap and batteries,
for at least two minutes. Reconnect the batteries and check operation of the sight as normal.
Corrective Action 5: Check the battery contacts for corrosion or wear. Clean the contacts.
Corrective Action 6: Return the sight for repair.
Failure: The reticle is fuzzy, has a ‘halo’ effect or has more than one reticle:
The reticle is naturally pixilated and the outer circle will appear to be made up of many small dots.
The center circle will still be distinguishable as one dot.
Corrective Action 1: Lower the brightness level of the reticle. This fault is generally caused by the
reticle brightness being set too high. The reticle intensity should not be set so bright as to obscure
the target.
(2 pages)
(38 pages)
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