OD1402 - Lesson 1/Learning Event 1
If, during weekly preventive maintenance inspection, you observe
that the interior of the oscilloscope is becoming dusty and dirty,
the scope should be referred to your supervisor and sent to
intermediate direct support maintenance for cleaning.
The Tank Turret Repairer should be extremely careful while working
around electronic instruments with the oscilloscope. The following
safety precautions should be followed:
o Always have at least two persons present when working on high
voltage units, one to give first aid, or summon help in case of an
o When working on equipment in inclement weather, protect
yourself and the equipment with a tarpaulin. Dry the equipment
with a hot air dryer before making measurements or adjustments.
o Only qualified personnel are permitted to make adjustments or
modifications to electrical components.
o Under certain conditions, such as wet surfaces, even low
voltages can be dangerous to your life. Make sure you always
follow the same safety rules used for high voltages.
o Before attaching any grounds, always make the ground end of
the connection first. When removing grounds, disconnect the ground
end of the connection last.
o Treat every wire as if it were energized.
o Use only the proper tools for the job. Make sure all pliers
and other electrical hand tools are properly insulated.
o Keep C02 or a dry chemical (Class C or D) type fire
extinguisher handy. Regularly check it to ensure that the
extinguisher is pressurized.
o Do not use gasoline or other explosive solvents near
electrical equipment that may produce a spark.
o Make all connections to deenergized conductors. Do not
apply power to the circuit until after the last connection is made.