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Metal and Nonmetal National Mine Rescue Contest Rules

Metal and Nonmetal National Mine Rescue Contest Rules

Metal and Nonmetal National Mine Rescue Contest Rules

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TESTING PROCEDUREBIOMARINE BIOPAK 240LW/240SBREATHING APPARATUSSTEP EQUIPMENT PROCEDURE HINTS1. Visual Vi su ally in spect theen-In spec tiontire Biopak 240LW/240Sfor worn, loose or missingparts, <strong>and</strong> parts thatcould fail un der use.2. Plumb ing Tongue In stall fully charged cyl-High Pres sure Depressor inder. Re move breath ingLeak Test Leak Tec cham ber lid <strong>and</strong> CO 2scrubber. Hold diaphragmaway from de m<strong>and</strong> valvewith tongue de pres sor.Open O 2 cyl in der valve.Check each plumb ingjoint with leak tec.3. Con stant Flow Tongue Slip the flowmeter overTest Depressor the flow restrictor. HoldFlow Me ter di a phragm away fromde m<strong>and</strong> valve withtongue de pres sor. OpenO 2 cyl in der valve. Flowshould be 1.6 - 2.4 lpm4. Breath ing Leak Test Con nect leak test fix tureSys tem Leak Fix ture to hoses. In sert pres sureTest Pressure test knob into the hole inTest Knob back of unit <strong>and</strong> turn ¼turn to lock in place.Open O 2 cyl in der valve,de press by-pass toin flate bal loon. Closecylinder valve, de pressby-pass to vent in ter nalpres sure. Vent pres sureat test fix ture un til bal loonreaches approximately 45de gree. Time for twomin utes look ing for significantdrop in bal loon.74

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