APPENDIX B MAINTENANCE ALLOCATION CHART

TM 5-6350-262-14/9

NAVELEX 0967-466-9090

TO 31S9-4-32-1

APPENDIX B

MAINTENANCE ALLOCATION CHART

Section- I. INTRODUCTION

B-1.

General

Code

Explanation

This

section

provides

general

Service: Operations required periodically to keep an

explanation of all maintenance and repair functions

item in proper operating conditions, i.e., to clean, to preserve,

authorized at various maintenance levels.

to drain, to paint, or to replenish fuel, lubricants, hydraulic

Section II designates overall responsibility

fluids, or compressed air supplies.

for the performance of maintenance functions on the

Adjust: To maintain within prescribed limits, by

identified end item or component and the work

bringing into proper or exact position, or by setting the

measurement time required to perform the functions by

operating characteristics to specified parameters.

the designated maintenance level. The implementation

Aline: To adjust specified variable elements of an

of the maintenance functions upon the end item or

item to bring about optimum or desired performance.

component will be consistent with the assigned

Calibrate: To determine and cause corrections to be

maintenance functions.

made or to be adjusted on instruments or test measuring and

Section III Special Tools and Test

diagnostic equipments used in precision measurement.

Equipment Required for Each Maintenance Function

Consists of comparisons of two instruments, one of which is a

Referenced From Section II (Not Applicable).

certified standard of known accuracy, to detect and adjust any

Section

contains

supplemental

discrepancy in the accuracy of the instrument being

instructions or explanatory notes for a particular

compared.

maintenance function (Not Applicable).

Install: The act of emplacing, seating, or fixing into

position an item, part, or module (component or assembly) in

B-2.

Explanation of Columns in Section II

a manner to allow the proper functioning of an equipment or

Column (1), Group Number. A number is

system.

assigned to each group in a top down breakdown

Replace: The act of substituting a serviceable like

sequence. The applicable groups are listed on the MAC

type part, subassembly, or module (component or assembly)

in disassembly sequence beginning with the first group

for an unserviceable counterpart.

removed.

Repair: The application of maintenance services

Column (2), Assembly Group.

This

(inspect, test, service, adjust, align, calibrate, or replace) or

column contains a brief description of the components

other maintenance actions (welding, grinding, riveting,

of each numerical group.

straightening, facing, remachining or resurfacing) to restore

Column (3), Maintenance Functions.

serviceability to an item by correcting specific damage, fault,

This column lists the various maintenance functions (A

malfunction, or failure in a part, subassembly, module

through K). The lowest maintenance level authorized to

(component or assembly), end item, or system.

perform these functions is indicated by a symbol in the

Overhaul: That maintenance effort (service/action)

appropriate column. Work measurement time standards

necessary, to restore an item to a completely

(the active repair time required to perform the

serviceable/operational

condition

prescribed

maintenance function) are shown directly below the

maintenance standards (i.e., DMWR) ill appropriate technical

symbol identifying the maintenance level. The symbol

publication. Overhaul is normally the highest degree of

designations for the various maintenance levels are as

maintenance performed by the Army. Overhaul does not

follows:

normally return an item to like new condition.

Code

Explanation

Rebuild:

Consists of those services/actions

Operator or crew.

necessary, for the restoration of unserviceable equipment to a

Organization maintenance.

like new condition in accordance with original manufacturing

Direct support maintenance.

standards.

General support maintenance.

Rebuild is the highest degree of material maintenance applied

Depot maintenance.

to Army equipment. The rebuild operation includes the act of

returning to zero those age measurement (hours/miles, etc.)

The maintenance functions are defined as follows:

considered in classifying Army equipment/components.

Code

Explanation

Column (4), Tools and Equipment. This

column is provided for referencing by code the special

Inspect: To determine serviceability of an item by

tools and test equipment (sec III) required to perform the

comparing its physical, mechanical, and electrical

maintenance functions (sec II).

characteristics

with

established

standards

through

Column (5), Remarks. This column is

examination.

provided for referencing by code the remarks (sec IV)

Test: To verify serviceability and detect incipient

pertinent to the maintenance functions.

failure by measuring the mechanical or electrical

characteristics of an item and comparing those characteristics

with prescribed standards.

B-1