TM-9-2815-220-24P
AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines
TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT, AND GENERAL SUPPORT REPAIR PARTS AND SPECIAL TOOLS LIST (INCLUDING DEPOT MAINTENANCE REPAIR PARTS) FOR AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines
TM-9-2815-220-24P - Page 13 of 455
TM9-2815-220-24P
0001 00
0001 00-3
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
follows:
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:
Maintenance
Code
Application/Explanation
C
-
Crew or operator maintenance done within unit maintenance.
O
-
Unit level maintenance can remove, replace, and use the item.
F
-
Direct support maintenance can remove, replace, and use the item.
H
-
General support maintenance can remove, replace, and use the item.
K
-
Only a contractor facility can remove, replace, and use the item.
L
-
Only a designated specialized repair activity can remove, replace, and use the item.
D
-
Depot maintenance 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).
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.
Maintenance
Code
Application/Explanation
O
-
Unit is the lowest level that can do complete repair of the item.
F
-
Direct support 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.
K
-
Designated Contractor Logistic Support (CLS) is the lowest level that can do
complete repair of the item.
L
-
Only the designated Specialized Repair Activity is the lowest level that should
perform complete repair of the item.
D
-
Depot is the lowest level that can do complete repair of the item.
Z
-
Nonreparable.
No repair is authorized.
B
-
No repair is authorized.
No parts or special tools are authorized for the maintenance
of “B” coded item.
However, the item may be reconditioned by adjusting, lubricating,
etc., at the user level.
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