TB-9-3950-253-13-P

PALLETIZED LOAD SYSTEM TRUCK, M1075 and M1075A1 (PLS) AND HEAVY EXPANDED MOBILITY TACTICAL TRUCK, M1120, M1120A2, AND M1120A4 (HEMTT), ENHANCED CONTAINER HANDLING UNIT (E-CHU)

TECHNICAL BULLETIN; OPERATOR AND FIELD MAINTENANCE, INSTALLATION INSTRUCTIONS, AND REPAIR PARTS AND SPECIAL TOOLS LIST

JULY 2009
TB-9-3950-253-13-P

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TB 9-3950-253-13&P
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EXPLANATION OF COLUMNS IN THE REPAIR PARTS LISTS – CONTINUED
b.
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 fol-
lows:
(a) Third Position. The maintenance code entered in the third position tells you the lowest mainte-
nance level authorized to remove, replace, and use an item. The maintenance code entered in the
third position will indicate authorization to one of the following levels of maintenance:
Code
Application/Explanation
C. . . . . . . . . . . . . . .Crew or Operator maintenance done within Field/AVUM maintenance.
O. . . . . . . . . . . . . . .Unit Level/AVUM maintenance can remove, replace, and use the item.
F . . . . . . . . . . . . . . .Direct Support/AVIM maintenance can remove, replace, and use the item.
H. . . . . . . . . . . . . . .General Support maintenance can remove, replace, and use the item.
L . . . . . . . . . . . . . . .Specialized Repair Activity (SRA) can remove, replace, and use the item.
D. . . . . . . . . . . . . . .Depot Maintenance can remove, replace, and use the item.
(b) 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).
NOTE
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.
Code
Application/Explanation
O. . . . . . . . . . . . . . .Unit/AVUM is the lowest level that can do complete repair of the item.
F . . . . . . . . . . . . . . .Direct Support/AVIM is the lowest level that can do complete repair of the
item.
H. . . . . . . . . . . . . . .General Support is the lowest level that can do complete repair of the
item.
L . . . . . . . . . . . . . . .Specialized Repair Activity (SRA) is the lowest level that can do complete
repair of the item.
D. . . . . . . . . . . . . . .Depot is the lowest level that can do complete repair of the item.
Z . . . . . . . . . . . . . . .Nonrepairable. No repair is authorized.
B . . . . . . . . . . . . . . .No repair is authorized. No parts or special tools are authorized for the
maintenance of a “B”-coded item. However, the item may be recondi-
tioned by adjusting, lubricating, etc., at the user level.


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