Explanation of Format - TM-3-4240-201-130039

TM 3-4240-201-13

e. Work Measurement Time. The active repair time

C-3.

Explanation of Format

required to perform the maintenance function is included

Purpose and use of the format are as follows: a.

directly below the symbol identifying the category of

Column 1, Group Number.

Column 1 lists group

maintenance.

Active repair time is the average

numbers, the purpose of which is to match components,

aggregate time required to restore an item

assemblies, subassemblies, and modules with the next

(subassembly, assembly, component, module, end item,

higher assembly.

or system) to a serviceable condition under typical field

b. Column 2, Functional Group. Column 2 lists the

operating conditions. This time includes preparation

next higher assembly group and the item names of

time, fault isolation/diagnostic time, and QA/QC time in

components, assemblies, subassemblies, and modules

addition to the time required to perform specific

within the group for which maintenance is authorized.

maintenance functions identified for the tasks authorized

c. Column 3, Maintenance Function. Column 3

in the maintenance allocation chart.

This time is

lists the eleven maintenance functions defined in C-2

expressed in man-hours and carried to one decimal

above. Each maintenance function required for an item

place (tenths of hours).

shall be specified by the symbol among those listed in d

f. Column 4, Tools and Equipment. Column 4 lists

below which indicates the level responsible for the

those peculiar tools and test, measuring, diagnostic, and

required maintenance. Under this symbol, there shall be

support equipment used in performing the authorized

listed an appropriate work measurement time value as

maintenance functions.

indicated in e below.

g. Column 5, Remarks. Self-explanatory.

d. Use of Symbols. The following are to prescribe

work function responsibility:

Symbol

Explanation

C ...............

Operator/crew maintenance

0 ...............

Organizational maintenance

F ...............

Direct support maintenance

H ...............

General support maintenance

D ...............

Depot maintenance

C-2