TB-9-2510-251-13 HMMWV Operator and Field Maintenance, Installation & Parts Add-On-Armor Air Conditioning Download
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SECTION I TB 9-2510-251-13 C-3. Explanation of Columns (Section II) (Cont’d). (1) Source Code. The source code tells you how you get an item needed for maintenance, repair, or overhaul of an end item/equipment. Explanations of source codes follow: XB XC PA Order by part number or obtain from salvage. Installation drawing, diagram, instruction sheet, field service drawing that is identified by manufacturer’s part number. Stocked items. Use the applicable NSN to request/requisition items with these codes. They are authorizedd to the category indicated by the code in the 3rd position of the SMR code. MO- Made at unit level MF- Made at DS level Items with these codes are not to be requisitioned/requested individually. They must be made from bulk material which is identified by the NSN or part number in the Bulk Material group of the repair parts list in this manual. If the item is authorized to you by the 3rd position code of the SMR code, but the source code indicates it is made at a higher level, order the item from the higher level of maintenance. AO- Assembled at Unit Level AF- Assembled at Direct Support 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 3rd position code of the SMR code authorizes you to replace the item, but the source code indicates the item is assembled at a higher level, order the item from the higher level of maintenance. NOTE Cannibalization when authorized may be used as a source of supply for items with the above source codes. (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: 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: Maintenance Code Application/Explanation C Crew or operator maintenance done within organizational maintenance. O Unit level maintenance can remove, replace, and use the item. F Direct support maintenance can remove, replace, and use the item. 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 (i.e., perform all authorized repair functions). C-4