Bendix Commercial Vehicle Systems AD-IP INTEGRAL PURGE AIR DRYER 5/07 - Manual

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SD-08-2414
Bendix ® AD-IP ™ Integral Purge Air Dryer
DESCRIPTION
The function of the Bendix ® AD-IP ™ integral purge air dryer
is to collect and remove air system contaminants in solid,
liquid and vapor form before they enter the brake system. It
provides clean, dry air to the components of the brake system
which increases the life of the system and reduces
maintenance costs. Daily manual draining of the reservoirs
is eliminated.
The AD-IP ™ air dryer consists of a desiccant cartridge
secured to a die cast aluminum end cover with a single,
central bolt. The end cover contains a check valve assembly,
safety valve, heater and thermostat assembly, three pipe
thread air connections and the purge valve assembly. The
removable purge valve assembly incorporates the purge valve
mechanism and a turbo charger cutoff feature that is designed
to prevent loss of engine “turbo” boost pressure during the
purge cycle of the AD-IP
™ air dryer. For ease of serviceability,
all replaceable assemblies can be replaced without removal
of the air dryer from its mounting on the vehicle.
FIGURE 1 - AD-IP ™ INTEGRAL PURGE AIR DRYER
HEATER &
THERMOSTAT
CONNECTOR
DESICCANT
CARTRIDGE
SADDLE
MOUNTING
BRACKET
CONTROL
PORT
LOWER
MOUNTING
BRACKET
SUPPLY
PORT
SAFETY VALVE
HEATER & THERMOSTAT
CONNECTOR
SUPPLY
PORT
MOUNTING
STRAP
The AD-IP ™ air dryer has three female pipe thread air
connections identified as follows:
Air Connection Port ID Function/Connection
CON 4 ....................... Control Port (purge valve control
& turbo cutoff).
SUP 11 ..................... Supply Port (air in).
DEL 2 ....................... Delivery Port (air out).
SAFETY
VALVE
CONTROL
PORT