TM 10-3930-659-10 Table 2-1.  Preventive Maintenance Checks and Services (Con’t). LOCATION ITEM ITEM TO NOT FULLY MISSION NO. INTERVAL CHECK/ PROCEDURE CAPABLE IF: SERVICE INTER- IOR 13 Before Seatbelts and Seat NOTE Vehicle   operation   with   Inoperative   seatbelts may violate AR 385-55. a.  Check seatbelt for security, damage, and completeness. b.  Check operation of seat re- b.  Seat release lock lease lever (see paragraph 2-9). is broken or miss- ing. 14 Before Fire a.  Check for missing or dam- Extin- aged fire extinguisher. guiltier b.  Check  pressure gage  for proper pressure of about 150 psi (1034 kPa). c.  Check for damaged or miss- ing seal. 2-21