BENDIX SD-08-2418 Manual
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BENDIX SD-08-2418 Manual

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Bendix
AD-IS
®
®
Reservoir Systems
Governor
Purge
Reservoir
UNL
Governor
Unloader (2)
22
SEC
Delivery to
Secondary
Reservoir
21
PRI
Governor
Delivery to
Primary
Reservoir
RES
Governor
Reservoir (2)
Pressure
Protection
Valves (4)
Figure 1 - Bendix
AD-IS
®
& AD-IS
PuraGuard
®
Desiccant
Cartridge
(standard shown)
EXH
Air Dryer
Part Number
Exhaust
Stamped
Here
Purge Valve
OE and Service New Bendix
valves, manufactured after December 2014,
contain two parallel ribs on the side of the body
as shown above. These ribs identify the purge
valve as a genuine Bendix
or Service New air dryer or purge valve being
serviced was manufactured after this date and
does not contain these ribs, it is not a genuine
Bendix product.
& AD-IS
PuraGuard
®
®
(Oil Coalescing) Air Dryer &
®
Desiccant Cartridge
(PuraGuard
oil coalescing shown)
®
Safety
Valve
Mounting
Bolts (3)
Heater
Thermostat
1
IN
Supply from
Compressor
®
product. If the OE
®
Oil Coalescing Air Dryer & Reservoir Systems
®
Mounting
Holes (4)
Auxiliary
Pressure
Delivery
Protection
Ports (4)
Valves (4)
AD-IS
purge
®
PuraGuard Medallion
(located on the top of the
air dryer cartridge)
23
AUX 2
Auxiliary
Delivery
Port
24
AUX 1
1

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Summary of Contents for BENDIX SD-08-2418

  • Page 1 Stamped Valves (4) Primary Here Reservoir Governor Reservoir (2) Purge Valve OE and Service New Bendix AD-IS purge ® ® PuraGuard Medallion valves, manufactured after December 2014, (located on the top of the contain two parallel ribs on the side of the body air dryer cartridge) as shown above.

  • Page 2: General Safety Guidelines

    Bendix ® ® ® ™ any vehicle maintenance where one or more dryer reservoir module, or a Bendix AD-9si ® ® wheels on a drive axle are lifted off the ground dryer, be sure to drain the purge reservoir.
  • Page 3 Qty. Port ID Connection The function of both the Bendix AD-IS (Integrated Solution ® ® Air Dryer) air dryer & reservoir system, and the Bendix ® Inlet Port (air in) AD-IS PuraGuard oil coalescing air dryer & reservoir ® ®...

  • Page 4: Charge Cycle

    The air then flows into the desiccant cartridge, during the charge mode. where it flows through an oil separator – or coalescing When the air pressure reaches approximately 106 psi, the filter if equipped with a Bendix PuraGuard oil coalescing ®...

  • Page 5: Purge Cycle

    Secondary Reservoir Auxiliary Ports (To Accessories) Diagram shows all pressure protection valves open Figure 3 - Bendix AD-IS Air Dryer & Reservoir System Purge Cycle ® ® Similarly, the governor also supplies air pressure to the accessories. If the pressure protection valves are pre-set air dryer.

  • Page 6: Preventive Maintenance

    PREVENTIVE MAINTENANCE it. See Table 2 for the time required for the entire contents of the purge reservoir of a Bendix AD-IS air dryer & ®...

  • Page 7: Cartridge Replacement

    Use of these or other substances can damage the air dryer and may void the warranty. Recommended Service Intervals for Bendix AD-IS Air Dryers *Reservoir Drain Interval Bendix (whichever comes first)
  • Page 8 If the resistance values obtained contents of the purge reservoir of a Bendix AD-IS air dryer & reservoir system to flow through the desiccant are outside the stated limits, replace the heater and thermostat assembly.
  • Page 9 BRAKING SYSTEM PROTECTION Do not attempt to adjust or service the pressure The Bendix AD-IS air dryer allows the system to maintain protection valves – incorrect pressure protection valve one brake circuit, up to about 100 psi, even after a pressure settings can result in the automatic application of the loss in the other brake circuit.
  • Page 10 Splash Shield Kit (includes bracket and cover) K052469 inlet port (1/IN). Remove the safety valve from the Bendix Splash Shield Cover 5005266N AD-IS air dryer (see Figure 1 for location). Note that a short...
  • Page 11 125 in-lbs). Note: Do not replace with a standard 4. Inspect the delivery check valve, o-rings, etc. for wear or compressor/governor gasket. damage. Replace, if necessary, using the check valve replacement kit available at any authorized Bendix 7. Re-attach the line to the governor. ® parts outlets.
  • Page 12 NOTES...

  • Page 13: Troubleshooting Chart

    - Single vehicle - 1 psi/minute. - Tractor/trailer - 3 psi/minute. Using a soap solution, test the vehicle for leakage at the fittings, drain valves and system valves and any accessories (i.e. air suspension) connected to the Bendix AD-IS air dryer ®...
  • Page 14 C. Excessive air usage – Air dryer not C. Refer to the Bendix Advanced Troubleshooting Guide for Air Brake Compressors (BW1971) for proper application of the compatible with the vehicle air system...
  • Page 15 This can be accomplished by adding a 90 cubic inch (or larger) reservoir between the compressor and the Bendix AD-IS air dryer & reservoir system. 10. The air dryer purge piston A.
  • Page 16 Log-on and Learn from the Best On-line training that's available when you are 24/7/365. Visit brake-school.com. SD-08-2418 Rev. 007 © 2018 Bendix Commercial Vehicle Systems LLC, a member of the Knorr-Bremse Group • 04/18 • All Rights Reserved...

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