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ylinder Valve Current Design Torque (See page 12) 70 - 75 ft. lbs. Snoop 85 - 105 in. lbs. Torque Prior Design (See page 7) Snoop 120 - 140 in. lbs. TAL 807 (L) Rev. 6 - 10042832...
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P/N 473664, 2216 psig Low Pressure and Dual-Purpose P/N 494883, 3000 psig Low Pressure, P/N 473255 MSA has changed its recommended installation proce- High Pressure and Dual-Purpose dures for the cylinder valve burst sisc and safety plug for current and prior designs. WARNING Current Design: Before repairing the cylinder valve, bleed all air from the cylinder.
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2. Place a new gasket over the valve stem and seat it on clockwise to remove the lip in the valve body. 3. Thread the packing gland into the cylinder valve body the safety plug. until lit is finger-tight. 4. Finger-loosen the valve stem counter-clockwise until the stem stops.
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INSTALLING A NEW BURST DISC FOR 2216 OR 3000 PSIG Installing a New 4500 Burst Disc 1. Insert a new gasket into the cylinder valve body. 1. Insert a new gasket into the cylinder valve. WARNING Be sure gasket, then burst disc, are installed in the order described.
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3. Clean out the threads in the cylinder valve body to be sure no tape residue remains. TAL 807 (L) Rev. 6 - 10042832...
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CYLINDER VALVE REASSEMBLING OR INSTALLING A NEW HIGH PRES- 5. If the cylinder valve inlet tube is damaged, the entire SURE PRESSURE GAUGE (P/N 473249) cylinder valve must be replaced. The inlet tube is "locked" with a non-removable thread sealant.
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8. Use a torque wrench with a 13/16" socket to tighten the cylinder valve according to the following table: ITEM REQUIRED 473255 Al. Cylinder Valve for High...
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Note: The O-ring removal tool can be used to remove O- from the cylinder valve body. ring from the packing gland. 3. Clean out the threads in the cylinder valve body to be sure no tape residue remains. REASSEMBLING OR INSTALLING A NEW PRESSURE GAUGE 3.
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REMOVING THE BURST DISC Note: The procedures for removing and installing burst 3. Place a new washer discs are the same for all models of MSA apparatus. into the packing gland. However, part number, tools, and torque specifications do Press the washer down vary.
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CURRENT DESIGN 4500 PSIG 3. Use the O-ring removal Installing a New 4500 Burst Disc tool or small flat blade 1. Insert a new gasket into the cylinder valve body. screwdriver to lift the gasket out of the cylin- WARNING der valve body.
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3. Install a new O-ring on the cylinder valve following the steps below: e. If the cylinder valve inlet tube is damaged it must be CAUTION removed using a wrench or pliers. Apply Christo-Lube lubricant to the O-ring and the O- ring groove just before installing the cylinder valve.
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