Table 4-1. Unit Preventive Maintenance Checks and Services (PMCS)(cont).
H - Hours of operation
Item to be inspected
Fuel Strainer and Filters
Lubricating Oil and Filters
Fuel system must be above freezing
temperature when draining water and
sediment from strainer, filters, and tank.
Open drains on fuel strainer, and primary and
secondary fuel filters. Drain water and sediment
into a suitable container. Allow to drain until fuel
Open drains on main fuel tank and day tank. Drain
water and sediment into a suitable container.
Allow to drain until fuel runs clean.
Clean or replace, as necessary, fuel strainer in
bottom of fuel pump.
Perform a hydrometer test on batteries every
100 hours. Refer to TM 5-6115-465-12 for
Inspect for worn, frayed, oil soaked, or cracked
belts. Check adjustment. Proper adjustment for
fan belt is a deflection of 1/2 inch with application
of 12-14 lb pressure midway between fan and
accessory drive pulley.
Replace filter elements every 100 hours of
Clean fuel strainer every 300 hours of operation.
Change lubricating oil and filter every 300 hours of
operation or six months.