Operating instructions

TM 11-5865-229-12
j. Overhaul.
The act of disassembling
equipment units down to all removable parts, cleaning, critically
inspecting, repairing, restoring, and replacing where necessary, assembling, adjusting, aligning, recalibrating,
and verifying, operational readiness by test or checkout; and packaging for transportation storage.
k. Rebuild.
Consists of those services/actions necessary for the restoration of unserviceable equipment
to a like new condition in accordance with original manufacturing standards. Rebuild is the highest degree of
materiel maintenance applied to Army equipment. The rebuild operation includes the act of returning to zero
those age measurements (hours/miles, etc.) considered in classifying Army equipment/components.
B-4 FUNCTIONAL GROUPS (COLUMNS 1 AND 2).
The fictional groupings shown in the sample below identify maintenance significant components, as-
semblies, subassemblies, and modules with the next higher assembly.
Number
Description
01
Receiver-Transmitter RT-1377/ALQ-162(V)
0103 Program Module Assembly
02 Control, Countermeasures C-11080/ALQ-162(V)
03
Antenna, AS-3554/ALQ-162 (V)
B-5 MAINTENANCE FUNCTION (COLUMN 3).
Column 3 lists the functions to be performed on the items listed in column 2.
6-6 MAINTENANCE CATEGORIES AND WORK TIME. (COLUMN 4).
The maintenance categories (levels) AWUM, AVIM, and DEPOT are listed on the Maintenance Allocation Chart
with individual columns that include the work times for maintenance functions at each maintenance level. Work
time presentations such as “0.1” indicate the average time it requires a maintenance level to perform a specified
maintenance function. If a work time has not been established, the columnar presentation shall indicate
"___ . ___." Maintenance levels higher than the level of maintenance indicated are authorized to perform the
indicated function.
B-7 TOOLS AND TEST EQUIPMENT (COLUMN 5 AND SECTION III).
Common tool sets (not individual tools), special tools, tests, and support equipment required to perform main-
tenance functions are listed alphabetically in Section III with a reference number to permit cross-referencing
to column 5 in the MAC. In addition, the maintenance category authorized to use the device is listed along with
the item National stock number (NSN) and, if applicable, the tool number to aid in identifying the tool/device.
B-8 REMARKS (COLUMN 6 AND SECTION IV).
Remarks (identified by an alphabetic code in column 6) and other notes (identified by a number in parentheses
in the applicable column) are listed in Section IV to provide a ready reference to the definition of the remark/
note.
B-4