Tektronix 7B92A Maintenance Manual page 134

B-1. General.
This appendix provides a summary of the
mainte- nance operations for Dual Time Base, Tektronix
Model 7B92A. It authorizes categories of mainte- nance
for specific maintenance functions on repairable items
and components and the tools and equipment required
to perform each function. This appendix may be used as
an aid in planning mainte- nance operations.
B-2. Maintenance Function.
Maintenance functions will be limited to and defined as
follows:
a. Inspect . To determine the serviceability of
an item by comparing its physical, mechanical, and/or
electrical characteristics with established standards
through examination.
b. Test. To verify serviceability and to detect
incipient failure by measuring the mechanical or
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 the specified
parameters.
e. Align . To adjust specified variable elements
of an item to bring about optimum or desired
performance.
f. Calibrate.
corrections to be made or to be adjusted on instruments
or test measuring and diagnostic equipments used in
precision measurement. Consists of comparisons 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.
g. Install . The act of emplacing, seating, or
fixing into position an item, part, module (component or
assembly) in a manner to allow the proper function- ing
of the equipment or system.
h. Replace .
serviceable like type part, subassembly, or module
(component or assembly)
counterpart.
MAINTENANCE ALLOCATION
Section I. INTRODUCTION
To determine and
The act of substituting a
for an unserviceable
APPENDIX B
i.
services (inspect, test, service, adjust, align, calibrate,
replace)
grinding, riveting, straightening, facing, remachining, or
resurfacing) to restore serviceability to an item by
correcting specific damage, fault, malfunction, or failure
in a part,
assembly), end item, or system.
j.
(service/action) necessary to restore an item to a
completely
prescribed by maintenance standards (i.e., DMWR) in
appropriate technical publications. Overhaul is normally
the highest degree of maintenance performed by the
Army. Overhaul does not normally return an item to like
new condition.
k.
necessary for the restoration of unserviceable equipment
to a like new condition in accordance with original
manufacturing standards. Rebuild is the highest degree
of materiel maintenance applied to Army equipment.
The rebuild operation includes the act of returning to zero
those age measurements (hours, miles, etc.) considered
in classifying Army equipments/components.
B-3. Column Entries.
a.
group numbers, the purpose of which is to identify
components, assemblies, subassemblies, and modules
with the next higher assembly.
b .
2 contains the noun names of components, assemblies,
cause
subassemblies, and modules for which maintenance is
authorized.
c.
3 lists the functions to be performed on the item listed in
column 2. When items are listed without maintenance
functions, it is solely for purpose of having the group
numbers in the MAC and RPSTL coincide.
d.
4 specifies, by the listing of a "work time" figure in
B-1
TM 11-6625-2925-24/TO 33A1-10-242-2
Repair . The application of maintenance
or other maintenance
subassembly, module
Overhaul .
That
serviceable/operational
Rebuild . Consists of those services/actions
Column 1, Group Number . Column 1 lists
Column 2, Component/Assembly . Column
Column 3, Maintenance Functions . Column
Column 4, Maintenance Category . Column
actions (welding,
(component or
maintenance effort
condition as