BENDIX TCH-008-031 User's Manual
Contents
1. Ring outlined below Cap Screws End Cover Removal Control End Cover Review all caution notes in the Service Data Manual Instruction Port Sheets and those listed above p Val Exhaust Check 1 Loosen the three cap screws on the end cover and turn the riven Valve Cover retaining clamps aside cap screws may be left finger tight 2 Locate the notch in the air dryer shell While pushing the end cover up into the dryer insert the blade of a screwdriver in the notch and slowly pry out the retaining ring If the cartridge bolt has loosened the cartridge spring may exert a force on the end cover retaining ring making removal of the retaining ring and end cover difficult This spring force will prohibit the end cover moving up into the dryer shell when pushed up Warning This same force can also cause the end cover to come out of the air dryer shell unexpectedly during the removal process Exercise extreme caution to prevent bodily injury 3 Do not stand or lay directly under the end cover while servicing Assure adequate clearance between the end cover and other surfaces to prevent hand injury if the end cover dislodges rapidly during removal 4 Proceed with maintenance procedures Bendix2. Technical Bulletin Bulletin No TCH 008 031 A Effective Date 11 5 99 Cancels NA Page 1 of 1 subject AD 2 AIR DRYER CAUTION NOTE UPDATE In addition to the caution notes printed in the AD 2 Service Manual and Installation Instruction Sheets the following procedures must be adhered to before servicing the AD 2 Air Dryer Failure to do so could result in personal injury AD 2 Air Dryer 1 Drain all reservoirs completely Loosen the air line to the control port of air dryer and allow the trapped air to escape to atmosphere After the air escapes remove the control line from the air dryer Delivery 3 Loosen the delivery line from the delivery port or outlet of the Check air dryer After the pressure drops remove the delivery line Valve Loosen the delivery check valve from this port to relieve any trapped air above the desiccant plate assembly 4 Remove any exhaust silencers or the exhaust check valve cover Spring from the base of the air dryer Using a hex socket and wrench loosen the purge valve assembly and allow any trapped air to escape Slowly unscrew the purge valve and remove it 5 Check all ports to insure that air is not trapped in the air dryer Bolt by powdered desiccant material Air Dryer End Cover Removal Procedure Warning The AD 2 Air Dryer cartridge contains a high spring load When replacing the AD 2 Air Dryer cartridge or performing any maintenance requiring end cover removal follow the procedure Retaining
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