TM-9-2520-234-34P
POWER TRAIN ASSEMBLY (8351100) (ALLISON MODEL XTG411-2A)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT; MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LIST (INCLUDING DEPOT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS)
TM-9-2520-234-34P - Page 9 of 160
Cod e
TM 9-2520-234-34 P
Explanatio n
Items with these codes are not to be requested/
requisitioned individually. The parts that make up
the assembled item must be requisitioned or fabricated
and assembled at the level of maintenance indicated
by the source code. If the 3d position code of the SMR
code indicates the item is assembled at a higher level,
order the item from the higher level of maintenance.
XA
–
XB
—
XC
—
XD
—
Do not requisition an ”XA’’-coded item. Order its next higher
assembly. (Also, refer to the NOTE below.)
If an ”XB” item is not available from salvage, order it using the
the CAGEC and part number given.
Installation drawing, diagram, instruction sheet, field service
drawing, that is identified by manufacturer’s part number.
Item is not stocked. Order an ”XD’’-coded item through normal
supply channels using the CAGEC 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” or those
aircraft support items restricted by requirements of AR 700-42.
(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 .
3
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