M A I N T E N A N C E INSTRUCTIONS
Section I. REPAIR PARTS, SPECIAL TOOLS, AND EQUIPMENT
Refer to Appendix B for the list of repair parts. Special
t o o l s for maintenance and repair of the fire control
C, Section III, for tool and test equipment requirements.
Table 4-1. Special Tools and Test Equipment
Organizational HSS boresight kit
HSS boresighting and
7.62-mm boresight kit
Section II. PREVENTIVE MAINTENANCE CHECKS AND SERVICES
Perform the self-test of the test set as described in
paragraph 3-6. Remove any dirt, dust, or grime with a soft
cloth and cleaning solvent conforming to MIL-A-6091
(diesel fuel, gasoline, and benzine are prohibited).
Section III. INSPECTION AND TEST
4-5. Helmet Boresight Tool Inspection.
Inspect all mechanical parts to insure they are in good
a. Secure the rail clamp base of the linkage orientation
condition and are not bent, cracked, broken, or
device (LOD) in the O-degree position. Clamp the rail clamp
deteriorated. Inspect electrical parts for obvious damage to
base of the LOD (fig. 3-2) securely to a stable base.
insure they are not cracked, broken, or otherwise damaged.
Check for frayed or broken wires, loose or badly soldered
joints, and shorted terminals or connectors,
b. Attach the boresight tool to the magnet on the LOD.
4-4. Test Set Electrical Test.
c. Slightly loosen the elevation and azimuth locks on
Perform the electrical self-test, paragraph 3-6.