instruments usually found in a machine shop. The
job of restoring machinery to good working order
may range from making a simple pin or link to
the complete rebuilding of an intricate gear
system. Often, without dimensional drawings or
other design information, a Machinery Repair-
man must depend on ingenuity and know-how to
machine a repair part successfully.
Molder (ML)
MOLDERS operate foundries aboard ship
and at shore stations. They make molds and cores,
rig flasks, prepare heats, and pour castings of
ferrous, nonferrous, and alloy metals. They also
shake out and clean castings and pour bearings.
Instrumentman (IM)
INSTRUMENTMEN perform preventive and
corrective maintenance and calibration on
mechanical instruments and standards and Navy
timepieces. They use Navy or mechanical
instrument repair and calibration shop (MIRCS)
procedures.
Opticalman (OM)
OPTICALMEN perform preventive and
corrective maintenance on small navigational
instruments, binoculars, gun sights, range finders,
submarine and turret periscopes, night vision
sights, and other optical instruments.
Patternmaker (PM)
PATTERNMAKERS make wooden, plastic,
plaster, and metal patterns used by Molders in a
Navy foundry. They mount patterns on match-
board/match plates for production molding.
Patternmakers make master patterns, full-scale
layouts of wooden patterns, coreboxes, and
templates. They also index and store patterns.
SAFETY PROGRAM
The objective of the Navy’s Safety Program
is to enhance operational readiness by reducing
the frequency and severity of on- and off-duty
mishaps to personnel and the cost of material and
property damage attributed to accidental causes.
The use of the term safety program in this chapter
signifies both occupational safety and health.
Operating and maintenance personnel must be
familiar with technical manuals and other publica-
tions concerning equipment they are working
with. Personnel must continuously exercise good
judgment and common sense in the setting-up and
operation of all equipment to prevent damage to
the equipment and injury to personnel.
Personnel can prevent damage to machinery
by properly preparing and operating the equip-
ment by following instructions and procedures
outlined in the EOSS (which is discussed later in
this chapter) and by being completely familiar
with all parts and functions of the machinery.
You can prevent damage to the ship by
operating the machinery so no loss of power
occurs at an inopportune time, by keeping engines
ready for service in any emergency, and by
preventing hazardous conditions that may cause
fire or explosion. Always maintain fire-fighting
equipment in a “ready to use” state.
You can prevent injury to personnel by having
a thorough knowledge of duties, by knowing how
to properly handle tools and operate equipment,
by observing normal precautions around moving
parts, and by receiving constant training.
Other everyday safety habits you should
follow include (1) preventing the accumulation of
oil in the bilges or other pockets or foundations
and subbases; (2) taking care, particularly when
on an uneven keel, that water in the bilges does
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