Bendix-commercial-vehicle-systems AD-1 AND AD-2 AIR DRYERS 7/04 Manuel d'utilisateur

1®Bendix® AD-1™ and AD-2™ Air DryersSD-08-2403FIGURE 1AD-2™ AIR DRYERAD-1™ AIR DRYERThe air dryer collects and removes moisture andcontaminants before

10FIGURE 14FIGURE 15-2FIGURE 15-1REBUILDING THE AD-1™ AIR DRYER ENDCOVER ASSEMBLYTo remove the end cover assembly from the air dryer followsteps 1-6 u

1115. Install the thermostat metal side down in the end coverbore and secure it in place using the retaining clip orshield and the two screws.16. Lubr

12FIGURE 17FIGURE 16 - AD-2™ AIR DRYER END COVER31. Lubricate the cap nut threads and the cap nut bore ofthe end cover and install the cap nut, torqui

134. Position the end cover as marked during removal andinstall the retainer ring so that the gap in the ring iswithin an inch of the notch in the bo

14FIGURE 19 - TYPICAL INSTALLATION FOR THE AD-1™ AIR DRYERCOMPRESSORUNLOADERGOVERNORRESERVOIR #1AD-1™AIRDRYERSAFETY VALVEPURGE DRAINVALVE#16 GAGE WIRE

15AD-2™ AIR DRYER TROUBLESHOOTING CHARTSYMPTOM CAUSE REMEDY1. Dryer is constantly A. Excessive system leakage. A. Test for excessive leakage and rep

16BW1597 © 2004 Bendix Commercial Vehicle Systems LLC All rights reserved. 7/2004 Printed in U.S.A.SYMPTOM CAUSE REMEDY4. Constant exhaust of air A.

2FIGURE 2 - SECTIONAL VIEWSAD-1™ AIR DRYERThe housing assembly consists of two cylindrical steelstampings welded together. For piping convenience, two

3The desiccant beads are held in place by steel perforatedplates and filter cloths. The top plate is held in place by aspring, and the bottom plate re

4FIGURE 3AD-2™ AIR DRYER OPERATIONAL CHARGE CYCLEFIGURE 4- AIR PRESSUREAD-2™ AIR DRYER OPERATIONAL PURGE CYCLE- AIR PRESSURE

5FIGURE 5A. An outside air source has been used to charge thesystem. This air did not pass through the dryingbed.B. Air usage is exceptionally high an

6D. ReassemblyReinstall the thermostat cover according to Figure17. Take special care to assure the rubber spacerand the gasket are correctly installe

7FIGURE 7 - REPLACEMENT DESICCANT CARTRIDGEFIGURE 6 - DESICCANT SEALING PLATEEnd Cover Removal1. Loosen the three cap screws on the end cover and turn

8DISASSEMBLY OF DESICCANT CARTRIDGE1. Carefully remove and discard the lock nut on top of thedesiccant sealing plate. (The plate is spring loaded; see

94. Insert one of the perforated plates into the cartridge,cloth side up, and tap it firmly to the bottom. (Clothalways faces desiccant material.) (Se