TM 10-4930-204-13APPENDIX DMAINTENANCE ALLOCATION CHARTD-1 .GENERAL.SECTION I.INTRODUCTIONa.This section provides a general explanation of all mainten-ance and repair functions authorized at various maintenance levels.b.The Maintenance Allocation Chart (MAC) in Section II desig-nates overall responsibility for the performance of maintenance func-tions on the identified end item or component.The implementation ofthe maintenance functions upon the item or component will be consis-tent with the assigned maintenance functions.C.Sections III and IV.(Not applicable).D-2. MAINTENANCE FUNCTIONS.a.Inspect.To determine the serviceability of an item by com-paring its physical, mechanical and/or electrical characteristics withestablished standards through examination.b.Test.To verify serviceability and detect incipient failureby measuring the mechanical or electrical characteristics of an itemand comparing those characteristics with prescribed standards.c.Service.Operations required periodically to keep an item inproper operating condition, i.e., to clean (decontaminate), to pre-serve, to drain, to paint, or to replenish fuel, lubricants, hydraulicfluids, or compressed air supplies.d.To maintain,within prescribed limits, by bringinginto proper or exact position, or by setting the operating character-istics to specified parameters.Adjust.e. Align.To adjust specified variable elements of an item tobring about optimum or desired performance.f.Calibrate.To determine and cause corrections to be made orto be adjusted on instruments or test measuring and diagnostic equip-ments used in precision measurement.Consists of comparisons of twoinstruments, one of which is a certified standard of known accuracy,to detect and adjust any discrepancy in the accuracy of the instrumentbeing compared.g.Install.The act of emplacing, seating, or fixing into posi-tion an item, part, or module (component or assembly) in a manner toallow the proper functioning of an equipment or system.D-1
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