CARGO BED COVER (CBC) HMMWV, TYPE I
REPAIR PARTS AND SPECIAL TOOLS LIST (RPSTL)
Item is not stocked. Order an XD-coded item through normal supply channels using the
CAGEC and P/N given, if no NSN is available.
Cannibalization or controlled exchange, when authorized, may be used
as a source of supply for items with the above source codes, except for
those source coded XA or those aircraft support items restricted by
requirements of AR 750-1.
Maintenance Code. Maintenance codes tell you the level(s) of maintenance authorized to use and repair
support items. The maintenance codes are entered in the third and fourth positions of the SMR Code as
Third Position: The maintenance code entered in the third position tells you the lowest maintenance
level authorized to remove, replace, and use an item. The maintenance code entered in the third
position will indicate authorization to the following levels of maintenance:
Crew or operator maintenance done within unit/AVUM maintenance.
Unit level/AVUM maintenance can remove, replace, and use the item.
Direct support/AVIM maintenance can remove, replace, and use the item.
General support maintenance can remove, replace, and use the item.
Specialized repair activity can remove, replace, and use the item.
Depot can remove, replace, and use the item.
Fourth Position. The maintenance code entered in the fourth position tells you whether or not the item is
to be repaired and identifies the lowest maintenance level with the capability to do complete repair
(perform all authorized repair functions).
Some limited repair may be done on the item at a lower level of
maintenance, if authorized by the Maintenance Allocation Chart (MAC)
and SMR codes.
Unit/AVUM is the lowest level that can do complete repair of the item.
Direct support/AVIM is the lowest level that can do complete repair of the item.