INTEGRATED MAINTENANCE
Combat systems integrated maintenance is based
on a comprehensive schedule of tests performed at
three mutually supporting levels: (1) systems, (2)
subsystems, and (3) equipments. These integrated
tests are designed to periodically test all combat
system functions, parameters, and characteristics
against specified tolerances. Successful equipment
performance during the tests usually indicates that
the systems are combat ready.
Integrated maintenance requirements are de-
veloped through engineering analysis, based on a
study of all factors that significantly affect main-
tenance. The analysis defines system and equipment
functions and sets tolerances (in terms of system
parameters) that allow operators and technicians to
determine if the systems are operating properly.
Integrated maintenance procedures provide mini-
mum preventive maintenance coverage of the combat
systems and are designed to test specific functions
under specific conditions. Sometimes, equipment
operators and technicians may not understand the
purposes of all the tests. However, they must still
follow the procedural sequences explicitly. Improvis-
ing or shortcutting procedural sequences of-ten leads
to incorrect troubleshooting or masking of actual
faults.
The integrated maintenance concept follows PMS
principles and is the most effective way to achieve
PMS goals. Compliance with this concept enables
the SERT to manage the combat systems mainte-
nance effort and to achieve the optimum level of
readiness with the most effective use of available
manpower.
Integrated maintenance is the planned mainte-
nance system (PMS) as it relates to the maintenance
documentation of a typical integrated combat
systems, the PMS program, maintenance scheduling,
and maintenance data system.
PLANNED MAINTENANCE SYSTEM
Combat systems readiness requires efficient
maintenance. The key to this capability is an organ-
ized system of planned maintenance to ensure the
maximum operational readiness of the combat sys-
tems. The Ships’ Maintenance and Material Man-
agement (3-M) Manual, OPNAVINST 4790.4, sets
forth an effective PMS and assigns PMS manage-
ment responsibility.
The PMS provides regularly scheduled tests to
detect degraded performance and to prevent failures
during tactical operations. When failures occur dur-
ing combat systems operations, the PMS provides a
formal step-by-step fault-isolation and repair pro-
cedure. Complete technical documentation (including
combat systems, subsystems, and individual equip-
ment manuals) is an integral part of the PMS. These
manuals provide the necessary information for
understanding, operating, and maintaining the com-
bat systems.
Shipboard maintenance falls into the three fol-
lowing categories:
1. Organization-level maintenance: Mainte-
nance within the capability of ship personnel.
2. Intermediate-level maintenance: Maintenance
requiring assistance from outside the ship,
such as a tender or an FTSC.
3. Depot-level maintenance: Maintenance re-
quiring port facilities, such as shipyard main-
tenance.
The goal of PMS is to perform maintenance at
the organization or intermediate level. Therefore,
depot-level maintenance is not reflected in PMS.
The PMS is a planning and control system that
prescribes a logical and efficient approach to
complex mechanical, electrical, and electronic main-
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