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APPENDIX B. BASIC ISSUE ITEMS LIST AND ITEMS TROOP INSTALLED OR AUTHORIZED
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TM-5-4320-242-14 Pump Assembly Flammable Liquid; Bulk Transfer; Gasoline Engine Driven; 350-GPM Capacity at 190 Foot Head; Wheel Mounted Manual
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Section II. MAINTENANCE ALLOCATION CHART - TM-5-4320-242-140080
APPENDIX C
MAINTENANCE ALLOCATION CHART
Section I. INTRODUCTION
equipment used in precise measurement. Consists of
C-1. General
the comparison of two instruments, one of which is a
a. This section provides a general explanation of
certified standard of known accuracy, to detect and
all maintenance and repair functions authorized at
adjust any discrepancy in the accuracy of the instrument
various maintenance levels.
being compared with the certified standard.
b. Section II designates overall responsibility for
G-Install: The set up for use in an operational
the performance of maintenance functions on the
environment such as an emplacement, site, or vehicle.
identified end item or component. The implementation
H-Replace: To replace unserviceable items with
of the maintenance functions upon the end item or
serviceable like items.
component  will  be  consistent  with  the  assigned
I-Repair: Those maintenance operations necessary to
maintenance functions.
restore an item to serviceable condition through
c. Section III. (Not applicable).
correction of material damage or a specific failure.
d. Section IV contains supplemental instructions or
Repair  may  be  accomplished  at  each  level  of
explanatory notes required for a particular maintenance
maintenance.
function.
J-Overhaul:  Normally,  the  highest  degree  of
C-2. Explanation of Columns in Section II
maintenance performed by the Army in order to
a. Group Number, Column (1).  The assembly
minimize time work is in process consistent with quality
group number is a numerical group assigned to each
and economy of operation.
It consists of that
assembly. The assembly groups are listed on the MAC
maintenance necessary to restore an item to completely
in disassembly sequence beginning with the first
serviceable condition as prescribed by maintenance
assembly  removed  in  a  top  down  disassembly
standards in technical publications for each item of
sequence.
equipment. Overhaul normally does not return an item
b. Assembly Group, Column (2).  This column
to like new, zero mileage, or zero hour condition.
contains a brief description of the components of each
K-Rebuild:  The  highest  degree  of  materiel
assembly group.
maintenance.  It consists of restoring equipment as
c. Maintenance Functions, Column (3).
This
nearly as possible to new condition in accordance with
column lists the various maintenance functions (A
original manufacturing standards. Rebuild is performed
through K).  The upper case letter placed in the
only when required by operational considerations or
appropriate column indicates the lowest maintenance
other paramoung factors and then only at the depot
level authorized to perform these functions.
maintenance level. Rebuild reduces to zero the hours
The symbol designations for the various maintenance
or miles the equipment, or component thereof, has been
levels are as follows:
in use.
C-Operator or crew
d. Work Measurement Time.  The active repair
O-Organizational maintenance
time required to perform the maintenance function is
F-Direct support maintenance
included directly below the symbol identifying the level
H-General support maintenance
of maintenance. This time includes preparation time,
D-Depot maintenance
fault isolation / diagnostic time, and QA / AC time in
The maintenance functions are defined as follows:
addition to the time required to perform specific
A-Inspect: To determine serviceability of an item by
maintenance functions identified for tasks authorized.
comparing its physical, mechanical, and electrical
The time is expressed in man-hours and carried to one
characteristics with established standards.
place (tenths of hours).
B-Test: To verify serviceability and to detect
e. Tools and Equipment, Column (4). This column
electrical or mechanical failure by use of test equipment.
is provided for referencing by code the special tools and
C-Service: To clean, to preserve, to charge, and to
test equipment (sec.
III) required to perform the
add fuel, lubricants, cooling agents, and air.
maintenance functions (sec. II).
D-Adjust: To rectify to the extent necessary to bring
f. Remarks, Column (5). This column is provided
into proper operating range.
for referencing by code the remarks (sec. IV) pertinent
E-Aline: To adjust specified variable elements of an
to the maintenance functions.
item to bring to optimum performance.
F-Calibrate: To determine the corrections to be made
in the readings of instruments of test
C-1

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