TM  10-4510-206-14 TO 40P1-6-2-1 Item No. 13 14 15 16 17 18 Table 2- I. Preventive Maintenance Checks and Services - Continued Interval During During During During During After Location Item to Check/ Service Fuel Pressure Gage Fuel  Lines Mixing  Valve Temperature Gage Mixing  Valve Shower Stand Assembly Shower  Heads Water  Hose Assemblies Procedure Check fuel pressure gage ( 17) for operating pressure. Maintain 90 psi (620 kPa) to 100 psi (690 kPa). Inspect all fuel lines (18) for leaks  and  for  kinked  or  crushed lines. Inspect  temperature  gage  (19)  for broken  glass,  damaged  indicator, or loose fitting. Inspect mixing valve (20) for loose, damaged, or leaking fittings. Check  for  defective  shower heads (21 ) and couplings (22). Check hoses (23) and connections (24) for cracks, leaks, or collapsed lines, Not  Fully Mission Capable  if: Proper pressure cannot be maintained. Fuel lines are leaking or damaged. Gage  is  loose or damaged. Valve is damaged or leaks. Damaged  or clogged shower heads or leaking connectors. Leaking  or damaged  hose  or connections. 2-8.4 Change  6