TM-9-2320-279-24P-1
M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LIST, VOLUME 1 OF 2
TM-9-2320-279-24P-1 - Page 16 of 1297
TM 9-2320-279-24P-1
XA -
Do not requisition an “XA"-coded item.
Order its next higher assembly.
(Also, refer to the NOTE below.)
XB -
If an "XB" item is not available from salvage, order it using the CAGE and part number given.
XC -
Installation drawing, diagram, instruction sheet, field service drawing, that is identified by manufacturer's part
number.
XD -
Item is not stocked.
Order an "XD"-coded item through normal supply channels using the CAGE and part number
given, if no NSN is available.
NOTE
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".
(2)
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:
(a)
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 one of
the following levels of maintenance.
Code
Application/Explanation
C
-Crew or operator maintenance done within organizational maintenance.
O
-Organizational can remove, replace, and use the item.
F
-Direct support level can remove, replace, and use the item.
H
-General support level can remove, replace, and use the item.
L
-Specialized repair activity can remove, replace, and use the item.
D
-Depot level can remove, replace, and use the item.
(b)
The maintenance code entered in the fourth position tells you whether the item is to be repaired and identifies
the lowest maintenance level with the capability to perform complete repair (i.e., all authorized maintenance functions).
This position will contain one of the following maintenance codes.
Code
Application/Explanation
O
-Organizational 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.
L
-Specialized repair activity 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
-Nonreparable.
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 reconditioned by adjusting, lubricating, etc., at the user level.
(3)
Recoverability Code.
Recoverability codes are assigned to items to indicate the disposition action on
unserviceable items.
The recoverability code is entered in the fifth position of the SMR Code as follows:
3
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