1
®
DESCRIPTION
The function of both the Bendix
®
AD-IS
®
(Integrated Solution
Air Dryer)
air dryer and reservoir system and the Bendix
®
AD-IS
®
PuraGuard
®
oil coalescing air dryer and reservoir
system is to collect and remove air system contaminants
in solid, liquid and aerosol form before they enter the brake
system and to provide—as a module—heavy vehicles with
an integrated vehicle air dryer, purge reservoir, governor
and a number of the charging valve components in a
module. These components have been designed as an
integrated air supply system.
Both air dryer and reservoir systems provide clean, dry air
to the components of the brake system which increases
the life of the system and reduces maintenance costs.
The necessity for daily manual draining of the reservoirs
is eliminated.
Bendix
®
AD-IS
®
and AD-IS
®
PuraGuard
®
(Oil Coalescing) Air Dryer
and Reservoir Systems
DESICCANT
CARTRIDGE
(PURAGUARD
®
OIL COALESCING
SHOWN)
PURGE
RESERVOIR
24
AUX1
AUXILIARY
DELIVERY PORTS
(4)
GOVERNOR
PRESSURE
PROTECTION
VALVES (4)
HEATER /
THERMOSTAT
SAFETY VALVE
AIR DRYER
PART NUMBER
STAMPED HERE
MOUNTING
BOLTS (3)
22
SEC
DELIVERY TO
SECONDARY
RESERVOIR
21
PRI
DELIVERY TO PRIMARY
RESERVOIR
PRESSURE PROTECTION
VALVES (4)
SD-08-2418
MOUNTING
HOLES (4)
TABLE 1 - PORT DESIGNATIONS
1
IN
SUPPLY FROM
COMPRESSOR
UNL
GOVERNOR
UNLOADER (2)
PURGE VALVE
RES
GOVERNOR
RESERVOIR (2)
EXH
GOVERNOR
EXHAUST
23
AUX2
AUXILIARY
DELIVERY
PORT
Air Connection
Port ID
Function/
Connection
QTY
1
IN
Inlet Port (air in)
1
21
PRI
Delivery Port Out (to Primary Reservoir)
1
22
SEC
Delivery Port out (to Secondary Reservoir)
1
24
AUX 1
Auxiliary Delivery Port (air out)
4
23
AUX 2
Auxiliary Delivery Port (air out)
1
UNL
Unloader Control Air (D-2A
™
Governor)
2
RES
Common Reservoir Pressure (D-2A
™
Governor)
2
EXH
Governor Exhaust
1
FIGURE 1 - BENDIX
®
AD-IS
®
AND AD-IS
®
PURAGUARD
®
OIL COALESCING AIR DRYER AND RESERVOIR SYSTEMS
DESICCANT
CARTRIDGE
(STANDARD SHOWN)
