Bendix Commercial Vehicle Systems DRM DRYER RESERVOIR MODULE 3/07 - Manual (Page 7)

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• Service New Purge Valve Housing Assembly: Contains
a service new assembly and related components to
change the purge valve sub-assembly.
• Pressure Protection Valve Boot Replacement.
• AD-IS ® Air Dryer Replacement: Replaces the complete
air dryer assembly. Includes air dryer assembly and
governor.
• AD-IS ® Air Dryer Splash Shield Replacement Kit.
• Purge Reservoir Drain Valve: Replaces the drain valve
on the purge reservoir.
SEE CATALOG PAGE 98-A-1 FOR FULL LIST OF
MAINTENANCE KITS AVAILABLE.
NOTE: There is no kit available for the servicing of the
pressure protection valves (See Figure 5). Do not attempt
to adjust or service the pressure protection valves - these
are not service items.
TESTING THE AD-IS ® AIR DRYER
Before placing the vehicle in service, perform the following
tests.
1. Close all reservoir drain valves.
2. Build up system pressure to governor cutout and note
that the AD-IS ® air dryer purges with an audible burst of
air, followed immediately by approximately 30 seconds
of air flowing out of the purge valve.
GENERAL
When rebuilding or replacing components of the air dryer
use only genuine Bendix parts. For ease in servicing, the
AD-IS
® air dryer has been designed so that any of the
following maintenance kits can be installed without removing
the air dryer from the vehicle.
If, after completing the routine operation and leakage tests,
it has been determined that one or more components of the
air dryer requires replacement or maintenance, refer to the
following list to find the appropriate kit(s).
MAINTENANCE KITS AVAILABLE:
• Service New Desiccant Cartridge Kit: This kit contains
the parts necessary to change the desiccant cartridge
only.
• Delivery Check Valve Maintenance Kit: This kit contains
the parts necessary to replace the delivery check valve.
• Governor/Delivery Check Valve Kit: This kit contains
the parts necessary to replace both the governor and
delivery check valve.
• 12 volt or 24 volt Heater and Thermostat Kits: Contains
a replacement heater and thermostat assembly and
related components required for replacement.
• Purge Valve Housing Maintenance Kit: This kit contains
the parts necessary to rebuild the purge valve sub-
assembly.
FIGURE 6 - SPLASH SHIELD BRACKET AND COVER - (EXPLODED VIEW)
SPLASH
SHIELD
BRACKET
SPLASH
SHIELD
COVER
LOCK TABS