APPENDIX C MAINTENANCE ALLOCATION CHART

TM 3-1040-214-12

APPENDIX C

MAINTENANCE ALLOCATION CHART

Section I. INTRODUCTION

g. Install. The act of emplacing, seating, or fixing

C-1. General

into position an item, part, or module (component or

The maintenance allocation chart (sec. II) lists the

assembly) in a manner to allow the proper functioning of

authorized maintenance functions assigned the

an equipment or system.

maintenance categories for maintenance of the M3

disperser. This chart is to be used by all levels of

h. Replace. The act of substituting a serviceable

maintenance to insure complete support of the

like-type part, subassembly, module (component or

equipment.

assembly) in a manner to allow the proper functioning of

an equipment/system.

i. Repair.

The application of maintenance

C-2. Maintenance Functions

services (inspect, test, service, adjust, align, calibrate,

Maintenance functions authorized are limited to and

replace) or other maintenance actions (welding, grinding,

defined as follows:

riveting,

straightening,

facing,

remachining,

resurfacing) to restore serviceability to an item by

a. Inspect. To determine the serviceability of an

correcting specific damage, fault, malfunction, or failure

item by comparing its physical, mechanical and/ or

in a part, subassembly, module/component/assembly,

electrical characteristics with established standards

end item or system.

through examination.

j. Overhaul. That maintenance effort (service/

b. Test.

To verify serviceability and to detect

action) necessary to restore an item to a completely

incipient failure by measuring the mechanical or

serviceable/operational condition as prescribed by

electrical characteristics of an item and comparing those

maintenance standards (e.g., DMWR) in pertinent

characteristics with prescribed standards.

technical publications. Overhaul is normally the highest

degree of maintenance performed by the Army.

c. Service.

Operations required periodically to

Overhaul does not normally return an item to like new

keep an item in proper operating condition, i.e., to clean,

condition.

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

hydraulic fluids, or compressed air supplies.

k. Rebuild.

Consists of those services/actions

necessary for the restoration of unserviceable equipment

d. Adjust. To maintain, within prescribed limits, by

to a like-new condition in accordance with original

bringing into proper or exact position, or by setting the

manufacturing standards. Rebuild is the highest degree

operating characteristics to specified parameters.

of materiel maintenance applied to Army equipment.

The rebuild operation includes the act of returning to

e. Align. To adjust specified variable elements of

zero those age measurements (hours, miles, etc.)

an item to bring about optimum or desired performance.

considered in classifying Army equipment/components.

f. Calibrate. To determine and cause corrections

l. Symbols. The uppercase letter placed in the

to be made or to be adjusted on instruments or test

appropriate column indicates the lowest level at which

measuring and diagnostic equipment used in precision

that particular maintenance function is to be performed.

measurement.

Consists of comparisons of two

instruments, one of which is a certified standard of

C-3. Explanation of Format

known accuracy, to detect and adjust any discrepancy in

the accuracy of the instrument being compared.

Purpose and use of the format are as follows:

C-1