• Home
  • Download PDF
  • Order CD-ROM
  • Order in Print
CUTTING AND WELDING OPERATIONS
LIQUIDS UNDER PRESSURE - 14325_552

Basic Military Requirements (BMR) Revised Edition
Page Navigation
  531    532    533    534    535  536  537    538    539    540    541  
Remove all combustible materials, flammable or explosive, from the area where welding or cutting is to be done. When welding or cutting a bulkhead, deck, floor, or other structure, you should check both sides of the structure to ensure that no materials near the structure will be damaged or will become a possible fire hazard. Post  fire  watches  on  both  sides  of  a  deck  or bulkhead before welding or cutting operations can be started.  Personnel  assigned  fire  watches  should  be thoroughly familiar with fire watch responsibilities and outfitted  with  the  proper  safety  gear,  such  as  gloves, proper eye protection (particularly when arc welding), and  safety  shoes.  To  make  sure  no  fire  hazards  exist, personnel  assigned  to  the  duties  of  a  fire  watch  must remain at the location at least 30 minutes after the job is completed. Keep  approved  fire-extinguishing  equipment near  welding  and  cutting  operations.  Usually,  a  CO2 extinguisher is adequate. If the space is small or if the access  is  only  a  small  opening,  CO2  is  not  the extinguishing  agent  to  use.  CO2  could  fill  the  small space,  and  the  small  opening  would  not  allow  for breathable air to enter. The small entry or exit may also hinder any rescue attempts should you be overcome by suffocation.  If  CO2  is  not  recommended,  the  use  of water spray from a fog nozzle is preferred. In the event the  fire  is  caused  by  electricity,  secure  power  before using the water spray. Welding or cutting operations aren’t permitted in or on the outer surfaces of a compartment or tank that contains  or  has  contained  a  flammable  or  explosive substance,  unless  applicable  safety  precautions  are observed. ROTATING MACHINERY The safe operation of rotating machinery and tools requires the operator to be thoroughly knowledgeable in the  equipment  operation.  It  also  requires  strict adherence  to  established  operating  procedures.  The operators should be familiar with the safety precautions for  their  own  particular  machinery.  However,  when operating  rotating  machinery,  the  following  general safety precautions should be observed: Never place any part of your body into moving machinery. Never attempt to ride machinery that is not designed for human conveyance. Never  wear  jewelry,  neckties,  or  loose-fitting clothing. Wear proper protective clothing and equipment suited  to  the  operation  being  performed  (hearing protection;  eye,  hand,  and  foot  protection;  dust  and paint respirators; and so on). Before  attempting  to  perform  repairs  or preventive maintenance on any equipment, ensure that it  is  de-energized  and/or  depressurized  and  properly tagged out of service before beginning to work. When  working  in  the  vicinity  of  electrical equipment or electrical cables, be alert to the presence of  dangerous  voltages  and  avoid  striking  such equipment with tools of any kind. Should such damage inadvertently occur, report it immediately to the ship’s electrical officer. Don’t use compressed air to clean parts of your body or clothing or to perform general space cleanup. Compressed air may be used to clean machinery parts that have been properly disassembled provided that the supply air pressure does not exceed 30 psi and a safety shield tip is used. Reinstall  shaft  guards,  coupling  guards,  deck plates,  handrails,  flange  shields,  and  other  protective devices  removed  as  interference  immediately  after removal of machinery, piping, valves, or other system components  during  maintenance  to  prevent  injury  to personnel. Inspect and/or test, according to scheduled PMS and other type commander (TYCOM) requirements, all installed safety devices, alarms, and sensors. Assign a high priority to repair of defective safety devices. Cleanliness  of  machinery  and  its  spaces profoundly  affects  the  safety  of  personnel  and equipment. Correct oil leaks at their source. Wipe up spills  of  any  kind  immediately,  and  dispose  of  the 19-17 Student Notes:







Western Governors University

Privacy Statement
Press Release
Contact

© Copyright Integrated Publishing, Inc.. All Rights Reserved. Design by Strategico.