conductors shall be used to ground all stationary and
portable machines, equipment, or other devices in which
static charges may be generated, or which, require
electrical circuits of a hazardous nature.
(d) Shop machinery shall be operated
only by qualified personnel observing safe practices.
(e) Safety devices, such as guards,
interlocks, automatic releases, and stops, shall always be
kept in operating condition.
(f) Ensure that all unauthorized
personnel are clear of area before opening valves or
energizing electrical circuits for starting machinery.
(g) Suitable mechanical guards, such
as enclosures or barricades, shall be permanently
installed on all machinery not already equipped with such
to eliminate danger of injury from moving parts.
(h) Machinery shall not be adjusted,
repaired, oiled, or cleaned while machine is in operation
or power is on.
(i) Personnel operating machinery shall
wear protective clothing as prescribed. A protective face
shield or goggles shall be worn when operating a grinder
regardless of whether grinder is equipped with attached
(j) Jewelry shall not be worn while
performing any maintenance.
(2) Fire safety. A constant vigilance shall be
maintained to seek out fire hazards. Fire hazards are
constantly present in the shop where sparks, friction, or
careless handling can cause an explosion that may
destroy equipment or buildings, and injure or kill
personnel. Refer to AR 385-10, The Army Safety
Program and the Occupational Safety and Health Act of
1971. The following fire safety practices shall be
(a) NO SMOKING signs shall be placed
in areas where smoking could create a fire hazard.
(b) Personnel shall be trained in the
use, knowledge, and location of shop fire fighting
(c) Each shop shall be equipped with
fire extinguishers suited for type of fire most likely to
(d) Use correct fire extinguisher for
class of fire as follows:
Class A fire (wood, paper, trash, etc). Use
water or soda-acid fire extinguisher.
Class B fire (oil, paint, fuel, grease, etc).
dioxide fire extinguisher.
Class C fire (electrical equipment). Use
bromotrifluoromethane or carbon dioxide
Class D fire (combustible metals)
magnesium, titanium, zirconium, sodium,
lithium, and potassium. Use dry powder
type fire extinguisher.
(e) Oily waste, rags, and similar
combustible materials shall be discarded in self-closing
metal containers which shall be emptied daily.
(f) Flammable materials shall not be
stored in the shop.
d. Shop Tools and Materials. Handling tools and
materials require observance of the following common
(1) Do not leave tools or objects in elevated
positions from which they can fall or be knocked off.
(2) Do not point a compressed airstream
toward any part of the body.
(3) All unserviceable tools shall be plainly
marked and removed from service.
(4) Electrical cables and air hoses to portable
units shall be laid out so there is no danger of tripping.
(5) Electrical tools shall be connected to a low
(6) Keep bench tops covered with material
hard enough to prevent chips and other foreign material
from becoming imbedded. Keep bench tops clean and
free from chips and filings.
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