TM 5-6350-264-14&P-10 NAVELEX EE 181-AA-OMI-110/E121 C-9412 T.O.  31S9-2FSS9-1-10 APPENDIX B MAINTENANCE ALLOCATION CHART Section I.  INTRODUCTION B-1. GENERAL. a. This section provides a general explanation of all maintenance and repair functions authorized at various maintenance levels. b. Section II designates overall responsibility for the performance of maintenance functions on the identified end item or component.  The implementation of the maintenance functions upon the end item or component will be consistent with the assigned maintenance functions. c. Section III lists the special tools and test equipment required for each maintenance function as referenced from Section II. d. Section IV contains supplemental instructions or explanatory notes for a particular maintenance function.  (Not Applicable) B-2. MAINTENANCE FUNCTIONS.  Maintenance functions are defined as follows: a. Inspect.  To determine the serviceability of an item by comparing its physical, mechanical and/or electrical characteristics with established standards through examination. b. Test.  To verify serviceability and detect incipient failure by measuring the mechanical or electrical characteristics of an item and comparing those characteristics with prescribed standards. c. Service.  Operations required periodically to keep an item in proper operating condition, i.e., to clean, to preserve, to drain, to paint, or to replenish fuel, lubricants, hydraulic fluids, or compressed air supplies. d. Adjust.  To maintain, within prescribed limits, by bringing into proper or exact position, or by setting the operating characteristics to specified parameters. e. Align.  To adjust specified variable elements of an item to bring about optimum or desired performance. f. Calibrate.  To determine and cause corrections to be made, or to be adjusted on instruments for test, measuring and diagnostic equipment used in precision measurement.  Consists of comparisons of two instruments, one of which is a certified standard of known accuracy, to detect and adjust any discrepancy in the accuracy of the instrument being compared. g. Install.  The act of emplacing, seating, or fixing into position an item, part, or module in a manner to allow the proper functioning of an equipment or system. h. Replace.  The act of substituting a serviceable like part, subassembly, or module for an unserviceable counterpart. i. Repair.  The application of maintenance services (inspect, test service, adjust, align, calibrate, or replace) or other maintenance actions (welding, grinding, riveting, straightening, facing, remachining, or resurfacing) to restore serviceability to an item by correcting specific damage, fault, malfunction, or failure in a part, subassembly, module, end item or system. j. Overhaul.  That maintenance effort (service/actions) necessary to restore an item to a completely serviceable operational condition prescribed by maintenance standards (i.e., DMWR) in appropriate technical publications.  Overhaul is normally the highest degree of maintenance performed by the Army. Overhaul does not normally return an item to like new condition. B-1