Bendix-commercial-vehicle-systems DRM DRYER RESERVOIR MODULE 3/07 Uživatelský manuál

1 Air Connection Function/Connection No.Port IDDESCRIPTIONThe function of the dryer reservoir module (DRM™) is toprovide heavy vehicle

10DRM™/AD-IS® AIR DRYER TROUBLESHOOTING CHARTSYMPTOMS1. Dryer is constantly“cycling” or purging.A. Test for excessive system leakage.Allowable leakage

11DRM™/AD-IS® AIR DRYER TROUBLESHOOTING CHART (Continued)SYMPTOMSCAUSEREMEDYD. Replace desiccant cartridge assembly.D. Desiccant requiresreplacement.E

12DRM™/AD-IS® AIR DRYER TROUBLESHOOTING CHART (Continued)SYMPTOMS CAUSEREMEDYC. Refer to Symptom 1, Remedy B.D. Repair or replace purge valve assembly

13DRM™/AD-IS® AIR DRYER TROUBLESHOOTING CHART (Continued)SYMPTOMS CAUSEREMEDYB. Excessive bends indischarge line (watercollects and freezes).C. Pressu

14A. Compressor fails to“unload”.10. The air dryer purgepiston cycles rapidly inthe compressorunloaded (non-compressing) mode.A. Check air hose from g

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16BW1948 © 2007 Bendix Commercial Vehicle Systems LLC All rights reserved. 3/2007 Printed in U.S.A.

2FIGURE 2 - AD-IS® AIR DRYER CHARGE CYCLE. DIAGRAM SHOWS PRESSURE PROTECTION VALVES A AND B OPEN, C & D CLOSED.COMPRESSORGOVERNORPURGECONTROLCHAN

3FIGURE 3 - AD-IS® AIR DRYER PURGE CYCLE.COMPRESSORGOVERNORPURGECONTROLCHANNELDESICCANTBEDDELIVERYCHECKVALVE(CLOSED)PURGERESERVOIRPURGEVALVE(OPEN)TURB

4the second pressure protection valve (B) opens and air willbe supplied to the secondary reservoir and to the accessorypressure protection valves (C &

54. Perform the Operation & Leakage Tests listed in thispublication.WARNING!This air dryer is intended to remove moisture and othercontaminants no

6the servicing of the pressure protection valves.WARNING: Do not attempt to adjust or service thepressure protection valves - incorrect pressureprotec

7• Service New Purge Valve Housing Assembly: Containsa service new assembly and related components tochange the purge valve sub-assembly.• Pressure P

83. “Fan” the service brakes to reduce system air pressureto governor cut-in. Note that the system once againbuilds to full pressure and is followed b

9FIGURE 7 - AD-IS® AIR DRYER DELIVERY CHECK VALVEGOVERNOR GASKET(SPECIAL GASKET,SEE NOTE 6 ONPREVIOUS PAGE)GOVERNOR(NON-ADJUSTABLE,130 PSI CUT-OUT)BOL