TM 1-1500-204-23-2 (1) Equipment safety.  Unsafe equipment shall be reported immediately.  The following equipment safety practices shall be observed: (a) Machines  shall  be  located  to  provide  operators  with  sufficient  space  to  handle  materials  and perform job operations without interference. (b) Bolt down all machinery that can move or walk due to vibration (drill press, bench grinder, etc.). (c) Substantial   low   resistance   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 shields. (j) Jewelry shall not be worn while performing any maintenance. (2) Fire  safety.    A  constant  vigilance  must  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 observed. (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 equipment. (c) Each shop shall be equipped with fire extinguishers suited for type of fire most likely to occur. (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).    Use  bromotrifluoromethane  or  carbon  dioxide  fire extinguisher. Class    C    fire    (electrical    equipment)    Use    bromotrofluoromethane    or    carbon    dioxide    fire extinguisher. 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. (g) Use only approved cleaning solvents. d. Shop Tools and Materials.  Handling tools and materials requires observance of the following common safety practices: (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 will be plainly marked and removed from service. (4) Electrical cables and air hoses to portable units will be laid out so there Is no danger of tripping. 3-2