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Page Title:
Explanation of Columns in Section II |
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 TM 9-4931-710-14&P
B-2
EXPLANATION
OF
COLUMNS
IN
SECTION
II
--
CONTINUED
C--
Operator/Crew
O--
Organizational Maintenance
F--
Direct Support Maintenance
H--
General Support Maintenance
D--
Depot Maintenance
e.
Column 5, Tools and Equipment. Column 5 specifies by code, those common tool sets (not
individual tools) and special tools, test, and support equipment required to perform the
designated functions.
f.
Column 6, Remarks. Column 6 references any amplifying remarks.
B-3
EXPLANATION
OF
MAINTENANCE
FUNCTIONS
Inspect. To closely and critically examine (e.g., sight, sound, or feel) an item to detect errors,
a.
flaws, wear, etc., and to determine its condition and serviceability by comparing its physical
mechanical/electrical characteristics within established standards.
Test. To verify serviceability and detect incipient failure by measuring the mechanical or
b.
electrical characteristics of an item and comparing those characteristics with prescribed
standards.
c.
Service. Operations required periodically to keep an item in proper operating condition; i.e., to
clean (decontaminate), to preserve, to drain, to paint, or to replenish fuel, lubricants, hydraulic
fluids, or compressed air supplies.
d.
Adjust. To maintain, within prescribed limits, by bringing into proper or exact position, or by
setting the operating characteristics to specified parameters.
Aline. To adjust specified variable elements of an item to bring about optimum or desired
e.
performance.
f.
Calibrate. To determine and cause corrections to be
made or to be adjusted on instruments or
test measuring and diagnostic equipments used
in precision measurement. Consists of
comparison of two instruments, one of which is a
certified standard of known accuracy, to
detect and adjust any discrepancy in the accuracy
of the instrument being compared.
Install. The act of emplacing, seating, or fixing into position an item, part or module
g.
(component or assembly) in a manner to allow the proper functioning of an equipment or
system.
R e p l a c e . The act of substituting a serviceable like type part, subassembly, or module
h.
(component or assembly) for an unserviceable counterpart.
i.
Repair. The application of maintenance services (inspect, test, service, adjust, aline, calibrate,
or replace) or other maintenance actions (welding, grinding, riveting, straightening, facing,
remachining, or resurfacing) to restore serviceability to an item by correcting specific
damage, fault, malfunction, or failure in a part, subassembly module (components or
assembly), and item, or system.
B-2
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