TM  10-4320-344-24 Item No. 7 8 9 10 11 12 Table   2-3. Preventive  Maintenance  Checks  and  Services for  Pumping  Assembly  Model  US636HCCD-1. (Continued) Interval Quarterly Semi- annually Semi- annually Semi- annually Semi - annually Semi - annually Location Item  to Check/Service ENGINE  -  CON’I’ Starter   Assembly PUMPING   ASSEMBLY Control   Panel Assembly ENGINE Engine Intake  and Exhaust   Manifolds Rocker  Arm Assembly Fuel   Transfer Pump  Assembly Procedure Inspect   for   damage   and loose   or   missing   mounting hardware  or  wires. Tighten wire   connections   and mounting    hardware. Replace missing   mounting   hardware. Replace   starter   as   required (para    2.21.18). Remove   fuse   and   check   for signs   of   burned   element. Remove   four   mounting   bolts. Remove   control   panel   cover (para   2.16.2).   Check   for leaks, loose   wires,   and corrosion. Replace   damaged or   inoperable   gauges.   If fuse   element   is   burned, r e p l a c e    i t. If   wires   are loose,   tighten   them. Replace   or   repair   damaged wiring   harness   (para 2 .1 6 . 6 ). Inspect   for   cracks   or leaks. Tighten   loose mounting   hardware. Replace missing   mounting   hardware. If   engine   is   damaged   or leaking,   notify   direct support   maintenance. Inspect   for   cracks   and leaks. Replace   intake   or exhaust   manifold   as required   (para   2.21.37   or 2 . 21 . 3 8 ). Check  and  adjust  valve clearance   as   required   (para 2 . 21 . 5 0 ). Inspect  for  loose  mounting hardware   and   fuel   line connections. Inspect   fuel transfer   pump   for   cracks and   leaks. Tighten   loose mounting   hardware   and connections. Service   fuel transfer   pump   as   required (para   2.21.16).   Replace fuel   transfer   pump   as required   (para   2.21.6). Not   Fully   Mission Capable   if: Missing   mounting hardware. Damaged   starter. Class   III   leak. Damaged  wiring harness   or   hoses. Class   III   leak. Damaged  or cracked  engine. Damaged  or missing   mounting hardware. Damaged  or cracked  manifold. Improper   valve clearance. C l a s s    I ,    I I ,    or III   leak. Damaged  or cracked   fuel transfer   pump. Missing   mounting hardware. 2-27