TM 5-3805-260-24MAINTENANCE ALLOCATION CHARTSection I. INTRODUCTIONGENERAL1.This section provides a general explanation of all maintenance and repair functions authorized at the variousmaintenance levels.2.The Maintenance Allocation Chart (MAC) in Section II designates overall authority and responsibility for theperformance of maintenance functions on the identified end item or component. The application of themaintenance functions to the end item or component will be consistent with the capacities and capabilities of thedesignated maintenance levels.3.Section IIl lists the tools and test equipment (both special tools and common tool sets) required for eachmaintenance function as referenced from Section II.4.Section IV contains supplemental instructions and explanatory notes for a particular maintenance function.MAINTENANCE FUNCTIONSMaintenance functions will be limited to and defined as follows:1.Inspect. To determine the serviceability of an item by comparing its physical, mechanical, and/or electricalcharacteristics with established standards through examination (e.g., by sight, sound, or feel).2.Test. To verify serviceability by measuring the mechanical, pneumatic, hydraulic, or electrical characteristics of anitem and comparing those characteristics with prescribed standards.3.Service. Operations required periodically to keep an item in proper operating condition, i.e., to clean (includesdecontaminate, when required), to preserve, to drain, to paint, or to replenish fuel, lubricants, chemical fluids, orgases.4.Adjust. To maintain or regulate, within prescribed limits, by bringing into proper or exact position or by setting theoperating characteristics to specified parameters.5.Align. To adjust specified variable elements of an item to bring about optimum or desired performance.6.Calibrate. To determine and cause corrections to be made or to be adjusted on instruments or test, measuring,and diagnostic equipments used in precision measurement. Consists of comparisons of two instruments, one ofwhich is a certified standard of known accuracy, to detect and adjust any discrepancy in the accuracy of theinstrument being compared.7.Remove/Install. To remove and install the same item when required to perform service or other maintenancefunctions. Install may be the act of emplacing, seating, or fixing into position spare, repair part, or module(component or assembly) in a manner to allow the proper functioning of an equipment or system.8.Replace. To remove an unserviceable item and install a serviceable counterpart in its place "Replace" isauthorized by the MAC and is shown as the third position of the SMR code.9.Repair. The application of maintenance services, including fault location/troubleshooting, removal/installation, anddisassembly/assembly procedures, and maintenance actions to identify troubles and restore serviceability to anitem by correcting specific damage, fault, malfunction or failure in a part, subassembly, module (component orassembly), end item, or system.10.Overhaul. That maintenance effort (service/action) prescribed to restore an item to a completeserviceable/operational condition as required by maintenance standards in appropriate technical publications (i.e.,DMWR). Overhaul is normally the highest degree of maintenance performed by the Army. Overhaul does notnormally return an item to like new condition.B-9
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