AirHawk Gauge and Alarm Assembly

Transcription

1 AirHawk Gauge and Alarm Assembly MAINTENANCE AND REPAIR MSA 511 (L) Rev. 4 MSA 2015 Prnt. Spec (I) Mat Doc

2 AIRHAWK GAUGE AND ALARM ASSEMBLY AIRHAWK GAUGE AND ALARM COMPONENTS Item Part No. Description Gauge (4500 psig) 1a Gauge (2216 psig) Whistle Manifold Assembly (4500 psig) 2a Whistle Manifold Assembly (2216 psig) Ring, Back-up O-ring Air Spool/Orifice, Gauge Hose Ass y Guard, Gauge Rapid Vent Orifice Assembly (4500 psig) 8a Rapid Vent Orifice Assembly (2216 psig) 2

3 AirHawk Gauge and Alarm Assembly Gauge and Whistle Assembly (2216 psig) Gauge and Whistle Assembly (4500 psig) 3

4 AIRHAWK DISASSEMBLY AND REPAIR HIGH PRESSURE HOSE AND GAUGE / ALARM ASSEMBLY NOTE: All repair procedures assume that the first stage regulator is disassembled from the cylinder. Replacing the High Pressure Gauge Hose 1. Removing the high pressure hose from the first stage regulator. a. Secure the first stage regulator. b. Place a wrench on the hex flats of high pressure hose. c. Unthread in a counter-clockwise direction to remove hose from regulator. d. Using the o-ring removal tool, remove old o-ring from hose. 2. Removing the high pressure hose from the whistle manifold a. Secure the whistle manifold. b. Place a wrench on the hex flats of high pressure hose. c. Unthread in a counter-clockwise direction. d. Pull firmly on the high pressure hose to remove it from the whistle manifold. e. Using the o-ring removal tool, remove the old o-ring and back-up ring. NOTE: All o-rings and back-up rings are supplied with high pressure hose. 3. Removing the rapid vent orifice. a. Place a small flat bladed screwdriver into orifice slot. b. Unthread in a counter-clockwise direction to remove orifice from high pressure hose. 4. Installing the rapid vent orifice. a. Apply a small drop of Loctite 222 to only the top two threads, no Loctite can flow below cross pinhole. DO NOT block side orifice hole. b. Use a small flat bladed screwdriver to thread the new orifice into hose. 5. Installing the high pressure hose into the first stage regulator. a. Use transparent tape to cover the hose threads. Place the o-ring in the groove on the end of the hose fitting. Apply a thin film of Christo-Lube lubricant to the o-ring. Remove the transparent tape. b. Thread gauge hose into the first stage regulator body, torque to 120+/- 20 in. lbs. 6. Installing the high pressure hose into the whistle manifold a. Place the back-up ring and o-ring in the groove on the end of the hose fitting. b. Apply a thin film of Christo-Lube lubricant to the backup ring and o-ring. c. Insert the hose fitting into the whistle manifold assembly hand-tighten, torque to in. lbs. 7. Replacing the whistle manifold a. Remove high pressure hose from whistle manifold (See Removing the High Pressure Hose). b. Remove the gauge assembly from whistle manifold c. Secure the whistle manifold assembly in a vise using protective sleeves to keep from damaging the manifold. d. Use a wrench on the gauge or alarm assembly s hex flats, using a wrench on the jam nut, loosen the jam nut on the gauge or alarm e. Unthread the gauge or alarm assembly in a counterclockwise direction to remove the gauge or alarm Do not remove the jam nut. f. Remove the air spool/orifice gauge. g. Pull firmly on the air spool/orifice gauge and remove it from the gauge or alarm h. Using the o-ring removal tool, remove the back-up rings and o-ring on air spool/orifice gauge. 8. Installing the high pressure hose into whistle manifold (See Installing the High Pressure Hose). 9. Installing gauge assembly on the whistle manifold NOTE: If the air spool/orifice gauge was removed, the air spool/orifice gauge must be installed into the gauge before installing the gauge into the whistle manifold. a. Apply a thin film of Christo-Lube lubricant to the o-rings and back-up rings on the air spool/orifice gauge. b. Place one back-up rings (P/N ) in the groove on each end of the air spool/orifice gauge. c. Place one o-ring (P/N ) in front of back-up ring on each end of the air spool/orifice gauge. d. Insert the air spool/orifice gauge into the gauge The air spool s larger-diameter hole must face toward the gauge e. Thread the jam nut against the threaded shoulder of the gauge f. Thread the gauge assembly into the whistle manifold assembly until gauge stops. NOTE: The gauge assembly must screw in at least 6 1/2 turns with the jam nut firmly against the whistle manifold "CAUTION DO NOT tighten the gauge by hand. Use wrenches. Use only gauges (P/Ns or ) with a straight thread. Failure to follow this warning can result in serious personal injury or death. g. If the gauge is not facing out (away from the shoulder pad), unthread the gauge not more than ONE turn to obtain this alignment. Hold the gauge to prevent turning. Tighten the jam nut against the whistle manifold assembly to a torque of 175+/-25 in. lbs. DO NOT unthread the gauge more than one full turn. The gauge connection may leak, resulting in serious personal injury or death. h. Make sure the gauge guard is in place around the gauge. 4

5 AIRHAWK ICM UNIT AIRHAWK ICM COMPONENTS Item Part No. Description 1 see chart ICM Swivel Connection Whistle Manifold Ass y (4500 psig) 2a Whistle Manifold Ass y (2216 psig) Ring, Back-up O-Ring Air Spool/Orifice Gauge Hose Ass y Rapid Vent Orifice Ass y (4500 psig) 7a Rapid Vent Orifice Ass y (2216 psig) 5

6 AirHawk ICM Unit Assembly Type ICM Unit Whistle, ICM 2000 Plus Unit (2216 psig) Whistle, ICM 2000 Unit (2216 psig) Whistle, ICM 2000 Plus Unit (4500 psig) Whistle, ICM 2000 Unit (4500 psig) Whistle, ICM 2000 Plus Unit Thermister (2216 psig) Whistle, ICM 2000 Unit Thermister (2216 psig) Whistle, ICM 2000 Plus Unit Thermistor (4500 psig) Whistle, ICM 2000 Unit Thermistor (4500 psig) in. lbs. 2a in. lbs. 7 7a 6

7 AIRHAWK DISASSEMBLY AND REPAIR 1. Replacing the ICM Unit. DO NOT disconnect the first stage regulator coupling nut when pressure is shown on the ICM Unit. Always be sure that all pressure is released from the regulator. Removing the coupling nut with the regulator pressurized can result in serious personal injury or death. NOTE: All repair procedures assume that the regulator assembly is disconnected from the cylinder. a. Remove the ICM Unit from the whistle manifold b. Secure the whistle manifold in a vise using protective sleeves to keep from damaging the manifold. c. Use a wrench to loosen the ICM s jam nut in a counterclockwise direction. d. Unthread the ICM Unit from the whistle manifold. e. Remove and discard the jam nut. DO NOT reuse the jam nut. Dispose of it immediately. Failure to follow this warning can result in serious personal injury or death. 2. Cleaning the ICM Unit. a. Apply alcohol to a Q-Tip applicator. b. Wipe threads of the ICM and the threads of the new jam nut with the Q-Tip. c. Wipe the whistle manifold s threaded port for the ICM. d. Let the alcohol dry for 15 seconds. 3. Inspecting the ICM Unit. a. Inspect the threads of the ICM Unit, jam nut, and whistle manifold for any damage. b. If any part is damaged, replace the part before reassembling. 4. Installing the ICM Unit into the whistle manifold NOTE: If the air spool/orifice gauge was removed, the air spool/orifice gauge must be installed into the ICM Unit before installing ICM Unit into whistle manifold. a. Install new back-up rings (P/N635277) and o-rings (P/N ) on each end of air spool/orifice gauge. b. Apply a thin film of Christo-Lube lubricant to each back-up ring and o-ring. c. Place one back-up ring in the groove on each end of the air spool/orifice gauge. d. Place one o-ring in the groove on each end of the air spool/orifice gauge. e. Insert the air spool into the ICM Unit. The air spool s larger diameter hole must face toward the ICM Unit. NOTE: Prior to applying Loctite, ensure the threads on the ICM Unit are wiped clean. f. Apply Loctite 271 on two threads approximately a tenth (0.10) of an inch from the thread shoulder of the ICM Unit. g. Thread the jam nut against the threaded shoulder of ICM Unit. h. Apply Loctite 271 to three threads approximately one sixteenth of an inch (0.0625) from the end of the ICM Unit. i. Thread the ICM Unit into the whistle manifold assembly until it stops. "CAUTION DO NOT tighten ICM Unit by hand. Use wrenches. j. The ICM Unit must be facing out and away from the shoulder pad. k. To obtain this alignment, unthread the ICM Unit not more than one full turn. l. Hold the ICM Unit to prevent turning. Tighten the jam nut against the whistle manifold and then torque to in. lbs. m. Make sure the ICM guard is in place around the ICM Unit. 7