The Naval Ships' Technical Manual (NSTM)
is the basic engineering doctrine publication of
NAVSEA. NAVSEA keeps the manual up-to-date
Another important source of information you
by quarterly changes. When NAVSEA issues new
can use is the manufacturer's technical manual
or revised chapters, they designate them with a
for the piece of equipment you are working on.
new chapter numbering system.
These manuals contain all the information
The following chapters of the Naval Ships'
necessary for operation, troubleshooting,
Technical Manual are of particular importance
overhaul, and repair. For example, they contain
to GSEs and GSMs; they reflect the new and old
information on gas turbine engine (GTE)
numbers for each chapter.
component change-out and engine change-out.
Some of your work as a GSE/GSM will
Gaskets, Packings, and Seals
require you to read and work from mechanical
Boiler Water/Feedwater - Test
drawings. You can find information on how to
read and interpret drawings in Blueprint Reading
and Sketching, NAVEDTRA 12014.
Besides knowing how to read drawings, you
must know how to locate applicable drawings. For
Marine Gas Turbines
some purposes, the drawings included in the
Propulsion Reduction Gears,
manufacturers' technical manuals for the
machinery or equipment may give you the
information you need. In many cases, however,
you may have to consult the onboard drawings.
The onboard drawings are sometimes referred to
as ship's plans or ship's blueprints. An index
called the ship's drawing index (SDI) lists the on-
board drawings. The SDI lists all working
drawings that have a NAVSHIPS drawing
number, all manufacturers' drawings designated
and Air Ejectors
as certification data sheets, equipment drawing
lists, and assembly drawings that list detail
Feedwater System and Ap-
drawings. The SDI identifies the onboard
drawings by an asterisk (*).
Lubricating Oils, Greases, and
Drawings are listed in numerical order in the
Hydraulic Fluids and Lubrica-
SDI. Onboard drawings are filed according to
systems are in use for drawings with NAVSHIPS
Electric Plant General
numbers. The older system is an S-group
numbering system. The newer system, used on all
Electric Motors and Control-
NAVSHIPS drawings since 1 January 1967,
is a consolidated index numbering system. A
Electric Measuring and Test
cross-reference list of S-group numbers and
consolidated index numbers is given in NAV-
SHIPS Consolidated Index of Materials and
Services Related to Construction and Conversion.
Pressure, Temperature, and
Other Mechanical and Elec-
SHIPS' MAINTENANCE AND
tromechanical Measuring In-
The Ships' Maintenance and Material Man-
agement (3-M) Manual, OPNAVINST 4790.4,
Ship Fuel and Fuel Systems
describes in detail the Ships' 3-M Systems. The