TM 9--2350--292--20--1 0187 00--122 0187 00 PREVENTIVE MAINTENANCE CHECKS AND SERVICES INCLUDING LUBRICATION INSTRUCTIONS -- CONTINUED TABLE 3 PREVENTIVE MAINTENANCE CHECKS AND SERVICES INCLUDING LUBRICATION INSTRUCTIONS, SEMIANNUALLY -- CONTINUED ITEM NO. NOT FULLY MISSION CAPABLE IF: PROCEDURE LOCATION ITEM TO CHECK/ SERVICE INTERVAL SEMIANNUALLY EXTERIOR 36 Machine Gun Mount a. Inspect mount for completeness. b. Check for rust, cracks or other damage. c. With machine gun installed, elevate and depress mount to full range (93° elevation and 21° depression) (TM 9--105--213--10). WARNING Any missing, worn or damaged components. If mount does not operate within elevation and depression ranges. d.   Clean machine gun mount with dry--cleaning solvent (item 1, WP 0716 00). LUBRICANTS/ COMPONENTS REFILL CAPACITY EXPECTED TEMPERATURE* +40°F to --10°F (+4°C to --23°C) Above +32°F (Above 0°C) 0°F to --65°F (--17°C to --54°C) PL--SVV--L800 Oil: Lubricating Oil, General Pur- pose Preservative As Required PL Medium PL Special PL Special *For Arctic Operation, refer to FM 9--207 e.   Lubricate all moving parts.