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 publications 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 equipment 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 not reach electrical machinery or wiring; and (3) ensuring that safety guards are provided at potential danger points, such as rotating and reciprocating equipment.

For personnel and machinery safety, you must adhere to the following safety precautions specifically related to the engineering department:

Do not attempt to operate equipment by overriding automatic shutdown or warning devices.

Tag-out and disconnect batteries or other sources of electrical power before performing maintenance. This prevents injuries from short circuits and accidental start-up of equipment.

Avoid holding or touching spark plugs, ignition units, or high-tension leads while they are energized.

Do not use oxygen to pressure test fuel lines and equipment.

Take precautions to avoid inhaling vapors of lacquer thinner, trichlorethylene, and similar solvents.

Do not wear jewelry or watches while working in machinery spaces.

Take precautions to avoid touching exposed hot parts of an engine. Do not perform maintenance work until the engine has been shut down and cooled.

Wear proper ear protection in all main machinery spaces.

It is the responsibility of supervisory personnel to ensure that their subordinates are instructed in and carry out the applicable safety precautions. Each individual is responsible for knowing and observing all safety precautions applicable to their living or working spaces. Refer to Navy Safety Precautions for Forces Afloat, OPNAVINST 5100.19.