Be cautious when working in voids or unvented spaces.
Beware the dangers of working aloft. Never attempt to stop a rotating antenna manually.
Keep protective closures, fuse panels, and circuit breaker boxes closed unless you are actually
working on them.
Never bypass an interlock unless you are authorized to do so by the commanding officer, and
then properly tag the bypass.
Use extreme caution when handling cathode-ray tubes. They implode violently if broken. The
anode contact may have a residual electrical charge. Make sure you discharge the anode before
You can find additional and more detailed information on safety in the Electronics Installation and
Maintenance Book (EIMB), General, NAVSEA SE000-00-EIM-100, paragraph 3-4. Another excellent
reference source is the Naval Electronics Systems Command's Electronic Safety Handbook, E0410-AA-
First aid is the emergency care you give to sick or injured persons. It consists only of providing
temporary assistance or treatment until medical help is available. In addition to knowing what to do for a
victim, you should also know what not to do.
This section should be used to reinforce the knowledge you already have about first aid. First aid is
included in detail for the purposes of review, study, and ready reference.
First aid study classes are usually available through your medical department or the American Red
Your knowledge of first aid measures and their proper application may mean the difference between
life and death, between rapid recovery and long hospitalization, or between temporary disability and
The objectives of first aid are to save life and prevent further injury. First aid is not a substitute,
however, for proper medical treatment. Keep in mind the objectives of first aid. Everyone in the Navy
must know when and how to apply first aid measures and must be prepared to give assistance to persons
injured in battle, collision, fire, or accidents.
In administering first aid, you have three primary tasks:
Prevent or reduce shock
The first step, of course, is to determine the extent of the victim's injuries. When you treat a victim,
first consideration usually must be given to the most serious injury. In general, the order of treatment is to
restore breathing, stop bleeding, and treat for shock.
Work quickly, but do not rush around frantically. Do not waste time looking for ready-made
materials; do the best you can with whatever is at hand. Send for medical help as soon as possible.