Metal and Nonmetal National Mine Rescue Contest Rules

PROCEDURES FOR GETTING UNDER OXYGENBIOMARINE BIOPAK 240LW/240S BREATHINGAPPARATUSProcedures for getting under oxygen:Pre-Use Inspection1. If ap pa ra tus is stored in a ready to use con di tion,Turn-Around Main te nance Tag at tached to ox y gen cyl -in der valve (date less than one year old). Be fore don -ning the ap pa ra tus in stall frozen Gel Tube In sert intocooling canister, secure lid.2. If ap pa ra tus is not stored in a ready to use con di tion,prior to don ning the ap pa ra tus, com plete the pe ri odiclong term main te nance pro ce dures as out line in theBiopak 240LW Bench man In struc tion Man ual, Re vi sionA, or Biopak 240S Bench man In struc tion Man ual, Re vi -sion K. Re fill and in stall the CO 2 ab sor bent can is ter(LimePak dated within one year). In stall a frozen GelTube In sert into cool ing can is ter, se cure lid.Donning, Getting under Oxygen3. Don the ap pa ra tus, tighten shoul der straps, buckle andad just waist strap, con nect and ad just chest strap.4. Place facemask har ness over head, cen ter chin in chincup, hold facemask to face and snug bot tom (chin)straps first, then the up per (tem ple) straps, and then thetop (head) strap. A poor facemask seal will cause a sig -nificant decrease in duration.5. Per form neg a tive pres sure check by block ing the in ha la -tion port with hand and in hal ing. If you can not in hale,mask fit is good and ex ha la tion valve is OK.6. Per form pos i tive pres sure check by cov er ing the ex ha la -tion port with hand and ex hal ing. Mask should pushaway from face. If air does not es cape, mask fit is goodand in ha la tion valve is OK.75