TM 55-4920-17-15
APPENDIX II
MAINTENANCE ALLOCATION
e. Replace. To substitute serviceable assemblies,
1. Purpose
subassemblies,
and
parts
for
unserviceable
components.
The maintenance allocation chart provides all
f. Repair. To restore to a serviceable condition by
activities with a description of maintenance functions to
replacing unserviceable parts or by any other action
be performed at each echelon of maintenance.
required, utilizing tools, equipment, and skills available,
to include welding, grinding, riveting, straightening,
2. Definition of Terms
adjusting, etc.
g. Rebuild. To restore to a condition comparable
a. Service. To clean, preserve, and replenish fuel
to new by disassembling the item to determine the
and lubricants.
condition of each of its component parts and
b. Adjust. To regulate periodically to prevent
reassembling it using serviceable, rebuilt, or new
malfunctions.
assemblies, subassemblies, and parts.
c. Inspect. To verify serviceability and to detect
h. Minor Disassembly. That disassembly where
incipient electrical or mechanical failure by scrutiny.
only subassemblies are removed, not entire system, and
d. Test. To verify serviceability and to detect
replacement does not require alinement.
incipient electrical or mechanical failure by use of
special equipment such as gages, meters, etc.
Maintenance Allocation Chart
1st
4th
5th
Group
Components and
2d
3d
tools
Remarks
related operations
ech. ech.
ech. ech . ech.
req'
d
ELECTRICAL
CIRCUIT BREAKERS:
Service .....................................
X
Adjust .......................................
X
Inspect ......................................
X
Test ..........................................
X
Replace ....................................
X*
Repair .......................................
X
Rebuild .....................................
X
WIRING:
Service .....................................
X
*Only
those
items
requiring
minor
disassembly.
Test ..........................................
X
Inspect ......................................
X
Replace ....................................
X*
Repair .......................................
X
Rebuild .....................................
X
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