The operator will perform the Operator PMCS (TM 5-2420-224-10) and will also help unit
maintenance do the unit PMCS, and perform lubrication in accordance with Lubrication
Instructions, page 2-14.
Unit PMCS should be performed at the intervals shown below:
Do your (Q) PMCS quarterly (every 3 months).
Do your (S) PMCS semiannually (every 6 months).
Do your (A) PMCS annually (once every year).
Refer to the following illustrations and descriptions for information on how to inspect
common items on the vehicle.
NUTS, BOLTS, AND SCREWS: Check for loose
parts by looking for cracked or chipped paint
around screw and bolt heads. Check for missing
or broken cotter pins or lockwire.
WELDS: Check for damaged welds by cracks in
paint or metal, and chipped paint in seams.
HOSES, TUBES, AND FITTINGS: Check all
hoses, tubes, and fittings for damage, loose
clamps, improper routing, leaks, looseness, and
chafing. Do not overtighten hoses, tubes, or
ELECTRICAL LEADS AND HARNESSES: Check for loose or corroded leads and connectors, proper
routing of harnesses, loose clamps, and chafing.