TM-9-2320-440-13-P
TERMINAL HIGH ALTITUDE AREA DEFENSE (THAAD) CARRIER
TECHNICAL MANUAL; OPERATOR’S AND FIELD LEVEL MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)
AUGUST 2010
TM-9-2320-440-13-P - Page 1539 of 1616
TM 9-2320-440-13&P
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FIELD LEVEL MAINTENANCE
MAINTENANCE ALLOCATION CHART (MAC) INTRODUCTION
THE ARMY MAINTENANCE SYSTEM (MAC)
This introduction provides a general explanation of all maintenance and repair functions authorized at the two
maintenance levels under the Two-Level Maintenance System concept.
This MAC (immediately following the introduction) designates overall authority and responsibility for the
performance of maintenance functions on the identified end item or component. The application of the
maintenance functions to the end item or component shall be consistent with the capacities of the designated
maintenance levels, which are shown on the MAC in column (4) as:
Field
– includes three subcolumns, Crew (C), Service (O), and Field (F).
Sustainment
– includes two subcolumns, Below Depot (H) and Depot (D).
1.
Service maintenance.
The responsibility of using organization to perform maintenance on its assigned
equipment. It normally consists of inspecting, servicing, lubricating, adjusting, and replacing parts, minor
assemblies, and subassemblies. The replace function for this level of maintenance is indicated by the
letter “O” in the third position of the SMR code. An “O” appearing in the fourth position of the SMR code
indicate complete repair is possible at the service maintenance level.
2.
Field Maintenance.
Maintenance accomplished on a component, accessory, assembly, subassembly,
plug-in unit, or other portion either on the system or after it is removed. The replace function for this level
of maintenance is indicated by the letter “F” appearing in the third position of the SMR code. An “F”
appearing in the fourth position of the SMR code indicates complete repair is possible at the field
maintenance level. Items are returned to the user after maintenance is performed at this level.
3.
Below depot sustainment.
Maintenance accomplished on a component, accessory, assembly,
subassembly, plug-in unit, or other portion either on the system or after it is removed. The replace
function for this level of maintenance is indicated by the letter “H” appearing in the third position of the
SMR code. An “H” appearing in the fourth position of the SMR code indicates complete repair is possible
at the below depot sustainment maintenance level. Items are returned to the supply system after
maintenance is performed at this level.
The tools and test equipment requirements (immediately following the MAC) list the tools and test equipment (both
special tools and common tool sets) required for each maintenance function as referenced from the MAC.
The remarks table (immediately following the tools and test equipment requirements) contains supplemental
instructions and explanatory notes for a particular maintenance function.
MAINTENANCE FUNCTIONS
Maintenance functions are limited to and defined as follows:
1.
Inspect.
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).
This includes scheduled inspection and gagings and evaluation of cannon tubes.
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