O R G A N I Z A T I O N A L MAINTENANCE INSTRUCTIONS
R E P A I R PARTS, SPECIAL TOOLS, AND EQUIPMENT
kit (containing purging adapter P/N 10552433
2-1. Repair Parts. Repair parts issued t O
Thread Size 8/32 listed in Section
organizational maintenance personnel are listed in
B, Maintenance Allocation Chart,
will be used
perform the purging operations.
2-2. Special Tools and Equipment. The purging
P R E V E N T I V E MAINTENANCE CHECKS AND SERVICES
Preventive Maintenance Services. Perform
scheduled maintenance services in accordance
Table2-1. Organizational Preventive Maintenance Checks
and Services (Quarterly Schedule)
Item to be
Inspect for nicks, cracks, and scratches of glass sur-
faces. Inspect binocular exterior surfaces for cracks or
scratches. If extent of damage is beyond present scope
of repair, evacuate to next higher level of maintenance.
Check for functioning of hinge pin and diopter scales
for ease of movement.
Housing Assembly, Left and Right
screw hole in the housing and assemble the
purging adapter to the outlet hose of the purging
A frequent purging requirement or any severe
c. Set the outlet pressure at 5 psi and purge
moisture indicates a sealing problem. If correction
the ocular for 90 seconds.
is beyond the scope of repair by direct support
off at the nitrogen source.
maintenance, forward to depot.
e. Unscrew the purging hose and adapter from
a. Remove the purging screw closest to hinge
the housing and immediately replace the removed
purging screw and tighten the other purging
11 or 12). Unscrew the other purging screw half
way. Inspect both purging screw O -rings for
f. Inspect binocular in accordance with
damage and replace screws if necessary.
b. Screw the adapter into the open purging
Section Ill. TROUBLESHOOTING
2-5. General. No troubleshooting is required at
organizational maintenance. If malfunctions occur,
forward to direct support maintenance.