BENDIX TCH-001-034 User's Manual
Contents
1. Technical Bulletin Bulletin No PRO 01 34 Effective Date 3 1 91 Cancels N A Page 1 of 1 Subject The BX 2150 Compressor Equipped With The Inlet Check Valve And Air Dryers Installations Field experience along with lab testing has revealed that the BX 2150 equipped with an ICV will pass significantly higher amounts of oil when an AD 2 or AD 4 air dryer is installed The higher oil passing rate can be attributed to the continued pumping of air out the open air dryer purge valve while the compressor is unloaded This occurrence is caused by the ICV temporarily assuming the same function as the compressor s inlet valve during the unloaded cycle The lack of head pressure resistance during the unloaded purge cycle contributes to the higher oil passing This same condition does not exist when the BX 2150 and AD 9 are combined since the AD 9 s integral Turbo Cutoff Valve effectively closes the discharge line during the unload purge cycle Closure of the AD 9 Turbo Cutoff valve prevents the escape of discharge line pressure and assures that a positive pressure is maintained above the compressor piston thereby preventing the ICV from functioning as the compressor inlet valve Reference and or mark the following publications Product Bulletin PRO 08 14 Service Data Sheets SD 01 331 BX 2150 Compressor SD 08 2 AD 2 Air Dryer SD 8 4 AD 4 Air Dryer SD 08 2412 AD 9 Air Dryer Catalog pages 01 L 1 to 01 L 16 BX 2150 Co2. mpressor 08 A 1 AD 2 Air Dryer 08 A 5 AD 4 Air Dryer 08 A 9 AD 9 Air Dryer 01 A 3 Inlet Check Valve VOIDS PRO 01 33 DATED 3 1 91 ON SAME SUBJECT INCORRECT BULLETIN NUMBER ASSIGNED COPY OF CORRECT CURENT PRO 01 33 ALSO ATTACHED Benly
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