![]() ![]() To remove and install the same item when required to perform service or other maintenance functions. Operations required periodically to keep an item in proper operating condition e.g., to clean (includes decontaminate, when required), to preserve, to drain, to paint, or to replenish fuel, lubricants, chemical fluids, or gases. To determine the serviceability of an item by comparing its physical, mechanical, and/or electrical characteristics with established standards through examination (e.g., by sight, sound, or feel). Maintenance Functions Maintenance functions are limited to and defined as follows: a. Information to requisition or otherwise secure the necessary repair parts will be as specified in the associated Repair Parts and Special Tools List (RPSTL). The assignment of a maintenance function will not be construed as authorization to carry the related repair parts or spares in stock. Higher maintenance levels will perform the maintenance functions of lower maintenance levels when required by the commander who has the authority to direct such tasking. A maintenance function that cannot be performed at the assigned level of maintenance for any reason may be evacuated to the next higher maintenance level. A maintenance function assigned to a maintenance level will be automatically authorized to be performed at any higher maintenance level. ![]() If the lowest maintenance level cannot perform all tasks of any single maintenance function (e.g., repair), then the higher maintenance level(s) that can accomplish additional tasks will also be indicated. Only the lowest level of maintenance authorized to perform a maintenance function is indicated. This Maintenance Allocation Chart assigns maintenance functions to the lowest level of maintenance. ![]() Generic terms/nomenclature (if any) are expressed in parentheses and are not to be considered as official terminology. Use of the Maintenance Allocation Chart NOTE Approved item names are used throughout this MAC. AVIM corresponds to an ∿ code in the RPSTL. AVUM and AVIM maintenance assignments are shown on the MAC in column (4) as: AVUM corresponds to an O code in the Repair Parts and Special Tools List (RPSTL). The application of the maintenance function is consistent with the capacities and capabilities of Aviation Unit Maintenance (AVUM) and Aviation Intermediate Maintenance (AVIM) units. Overall authority and responsibility is designated for the performance of maintenance functions on the identified component. TM 1-1670-260-12&P 0029 00 _ MAINTENANCE ALLOCATION CHART _ INTRODUCTION The Army Maintenance System MAC The Maintenance Allocation Chart (MAC) assigns maintenance functions in accordance with the Aviation Maintenance concept for Army aviation. ![]()
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