APPENDIX B MAINTENANCE ALLOCATION CHART

TM 5-6350-262-14/11

NAVELEX 0967-LP-466-9112

TO 31S9-4-39-1

APPENDIX B

MAINTENANCE ALLOCATION CHART

Section I. INTRODUCTION

B-1.

General

Code

Explanation

C Service, Operations required periodically to keep an item in proper

a. This section provides a general explanation of all

operating conditions, i.e., to clean, to preserve, to

maintenance and repair functions authorized at various

drain, to paint, or to replenish fuel, lubricants, hy-

maintenance levels.

draulic fluids, or compressed air supplies.

b. Section II designates overall responsibility for the

D Adjust To maintain within prescribed limits, by bringing into proper

or exact position, or by setting the operating

performance of maintenance functions on the identified

characteristics to specified parameters.'

end item or component and the work measurement time

E Aline, To adjust specified variable elements of an item to bring

required to perform the functions by the designated

about optimum or desired performance.

F Calibrate, To determine and cause corrections to be made or to be

maintenance level. The implementation of the mainte-

adjusted on instruments or test measuring and diag-

nance functions upon the end item qr component will be

nostic equipments used in precision measurement.

consistent with the assigned maintenance functions.

Con- sists of comparisons of two instruments, one of

c. Section III-Special Tools and Test Equipment

which is a certified standard of known accuracy, to

Required for Each Maintenance Function Referenced

detect and adjust any discrepancy in the accuracy of

the instru- ment being compaired.

From Section II (Not Applicable).

G Install: The act of emplacing, seating, or fixing into position an

d. Section IV contains supplemental instructions or

item, part, or module (component or assembly) in a

explanatory notes for a particular maintenance function.

manner to allow the proper functioning of an equip-

ment or system.

H Replace, The act of substituting a serviceable like type part,

B-2. Explanation of Columns In Section II

subassembly, or module (component or assembly)

a. Column (1), Group Number. A number is

for an unserviceable counterpart.

assigned to each group in a top down breakdown

I Repair: The application of maintenance services (inspect, test,

sequence. The applicable groups are listed on the MAC

service, adjust, aling, calibrate, or replace) or other

maintenance actions (welding, grinding, riveting,

in disassembly sequence beginning with the first group

straightening, facing, remachining, or resurfacing) to

removed.

restore serviceability to an item by correcting specific

b. Column (2), Assembly Group. This column

damage, fault, malfunction, or failure in a part,

contains a brief description of the components of each

subas- sembly, module (component or assembly),

numerical group.

end item, or system.

J Overhaul: That maintenance effort (service/action) necessary to

c. Column (3), Maintenance Functions. This column

restore an item to a completely serviceable

lists the various maintenance functions (A through K).

/operational condition as prescribed by maintenance

the lowest maintenance level authorized to perform

standards (i.e., DMWR) in appropriate technical

these functions is indicated by a symbol in the

publi- cation. Overhaul is normally the highest

degree of maintenance performed by the Army.

appropriate column. Work measurement time standards

Overhaul does not normally return an item to like new

(the active repair time required to perform the

condition.

maintenance function) are shown directly below the

K Rebuild: Consists of those services/actions necessary for the

symbol identify- ing the maintenance level. The symbol

restoration of unserviceable equipment to a like new

condition in accordance with original manufacturing

designations for the various maintenance levels are as

standards. Rebuild is the highest degree of material

follows:

maintenance applied to Army equipment.

The

Code

Explanation

rebuild operation includes the act of returning to zero

Operator or crew.

those age measurements (hours/miles, etc.)

Organization maintenance.

considered

classify-

ing

Army

Direct support maintenance.

equipment/components.

General support maintenance.

Depot maintenance.

d. Column (4). Tools and Equipment. This column

The maintenance functions are defined as follows:

is provided for referencing by code the special tools and

Code

Explanation

Inspect, To determine service ablility of an item by comparing

test equipment (sec.

III) required to perform the

its

physical,

mechanical,

and

electrical

maintenance functions (sec. II).

characteristics with established standards through

e. Column (5), Remarks. This column is provided

examination.

for referencing by code the remarks (sec. IV) pertinent

Test, To verify serviceability and detect incipient failure by

to the maintenance functions.

measuring

the

mechanical

electrical

characteristics of an item and comparing those

characteristics with prescribed standards.

B-1