Chapter 2—ADMINISTRATION, SUPERVISION, AND TRAINING
immediate trouble. As a result of this type of
analysis, skilled maintenance personnel have been
able to pinpoint wear areas early, and to take
corrective and preventive maintenance action
during an emergency or on a pre-planned basis
as determined by the type of accelerated wear
detected. By replacing worn out minor parts a
major failure can be prevented, and the require-
ment for costly parts replacements of complete
overhaul of the equipment can be eliminated.
Ships shall maintain accurate records of
operating hours since major overhauls, oil
changes, and samplings in order to provide the
testing facility with the information requested in
the sampling kit. (COMNAVSURFLANT uses
the services of the Charleston Naval Shipyard and
COMNAVSURFPAC uses Intermediate
Maintenance Activities (IMA) for analyzing oil
samples from machinery employing closed lube
oil/hydraulic systems.) In addition, a record of
conditions found and repairs effected as a result
of inspections conducted following recom-
mendations of the laboratory must also be
maintained.
When the shipyard or IMA laboratory receives
the oil sample, a physical test and a spectrometric
analysis are performed. The physical test consists
of the following:
1. All samples are tested for fuel dilution, and
a report is provided to all concerned by percent
volume as per requirements of ASTM D92057.
2. All samples are tested for solids by
centrifuge to show the amount of suspended
particles separately from precipitated solids. The
test must differentiate between those fine particles
suspended by the active compounds in the oil and
those that can settle out of the oil spontaneously
to give a ratio of colloidal/precipitated solids.
3. Allowable “use limits” are tested and
recorded.
When the physical test is completed the
shipyard/IMAs should make a spectrometric
analysis of each used oil sample, then record and
report to all concerned the concentrations of the
Element Concentration In
Standard Reference Specimen
Standard Deviation
(Range in PPM)
(Maximum in PPM)
3-
9
1.5
10 -
19
2
20 - 49
3
50 - 99
5
100 - 199
8
200 - 500
15
Figure 2-16.—Element Concentrations.
following elements in parts per million (ppm). (See
figure 2-16.)
Iron (Fe)
Nickel (Ni) *Sodium (Na)
Lead (Pb)
Silver (Ag)
Phosphorus (P)
Copper (Cu)
Tin (Sn)
Zinc (Zn)
Chromium (Cr) Silicon (Si) Calcium (Ca)
Aluminum (Al) Boron (B)
Barium (Ba)
*Only when evidence of water is present.
Testing will be done for all the above elements.
The sensitivity and reliability of the equipment
used for the test will be such that the standard
deviation obtained in the analysis for each
specified element must not exceed the appropriate
value shown in figure 2-16.
Additional information on trend analysis and
oil spectrometric analysis is contained in COM-
NAVSURFLANTINST 9000.1 or COMNAV-
SURFPACINST 4700.1A.
MAINTENANCE AND REPAIR
RESPONSIBILITIES
In order to fulfill your maintenance and repair
responsibilities along with your administrative and
supervisory responsibilities you must plan your
work ahead of time.
You must determine all the work that must
be done and prepare a schedule to ensure that it
is done. You must also keep your schedule flexi-
ble enough to allow unexpected maintenance and
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