Bendix® AD-RP™AIR DRYER TROUBLESHOOTING CHART

SYMPTOMS

CAUSE

REMEDY

4. Air is escaping from

D. Air fl ow to the supply

D. Kinked, plugged, damaged hose tubing or fi ttings:

air dryer exhaust

reservoir is restricted.

Check to determine if air is reaching the fi rst reservoir.

during the charge

 

Inspect for kinked tubing or hose. Check for undrilled

cycle, but is able

 

fi ttings or restricted hose or tubing fi ttings. Repair or

to build system

 

replace as necessary.

air pressure.

 

Desiccant cartridge plugged: Check compressor

 

 

(Compressor

 

for excessive oil passing and/or correct compressor

 

 

pumping.) (continued)

 

installation. Repair or replace as necessary. Replace

 

 

 

 

the desiccant cartridge.

 

 

 

 

E. Excessive pressure

E. Increase the volume in the discharge line by adjusting

 

pulsations from compressor.

the length or size of line, or add a ping tank.

 

(Typical single cylinder type.)

 

 

 

 

5. Air escaping from air

A. Leaking turbo cut-off valve in

A. Note the dash gauges to verify the purge cycle has

dryer exhaust port

Bendix® AD-RP™air dryer.

ended. Perform the air dryer “Operation & Leakage

during entire purge

 

Tests” specifi ed in this manual. Repair or replace as

cycle. (Compressor

 

necessary.

not running.)

 

 

 

B. Leaking purge piston o-ring

B. Perform the Air Dryer “Operation & Leakage Tests”

 

in the AD-RP air dryer.

specified in this manual. Repair or replace as

 

 

necessary.

 

 

 

 

C. Leaking delivery check

C. Perform the Air Dryer “Operation & Leakage Tests”

 

valve.

specified in this manual. Repair or replace as

 

 

necessary.

 

 

 

6. Unable to build air

A. Frozen discharge line.

A. Inspect the discharge line installation for water traps

system pressure and

 

that could freeze. Refer to “Connecting The Air Lines”

air is not escaping

 

section in manual. Repair or replace as necessary.

from the AD-RP air

 

 

dryer exhaust during

 

 

B. Compressor unloader

B. Test the compressor unloader mechanism for proper

the charge cycle.

mechanism malfunction.

operation. Repair or replace as necessary.

(Note: This is not the

 

 

same as symptom

C. Governor malfunction.

C. Test the governor for proper operation. Repair or

4.)

 

replace as necessary.

 

 

 

 

D. Air fl ow to service brake

D. Check for kinked, plugged, damaged hose tubing or

 

system is restricted or

fi ttings in the air line between the supply reservoir

 

plugged. Air pressure on one

and low pressure service reservoir.

 

dash gauge normal with no,

 

 

or low pressure on the other

 

 

gauge.

 

 

 

 

(continued)

22

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BENDIX SD-08-2415A manual Check to determine if air is reaching the fi rst reservoir
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SD-08-2415A specifications

The BENDIX SD-08-2415A is a state-of-the-art electronic control module designed to enhance the performance and safety of commercial vehicle brake systems. This innovative device is part of BENDIX's commitment to providing advanced braking technologies that meet the demands of modern transportation.

One of the main features of the SD-08-2415A is its integrated functionality, which combines multiple braking systems into a single module. This includes Anti-Lock Braking Systems (ABS), Traction Control Systems (TCS), and Electronic Stability Control (ESC). By integrating these systems, the SD-08-2415A provides improved vehicle control and ensures optimal braking performance in various driving conditions.

The technology behind the BENDIX SD-08-2415A incorporates sophisticated algorithms that help to monitor wheel speed, generating real-time data to prevent wheel lock-up during hard braking. This not only enhances safety but also increases the lifespan of brake components by minimizing wear and tear. The module features advanced diagnostics capabilities, which allows for quick troubleshooting and maintenance, ensuring that operators can keep their vehicles in peak operating condition.

In addition to its core functionalities, the SD-08-2415A features an open architecture design, allowing for seamless integration with existing vehicle systems. This design provides flexibility for manufacturers and fleet operators to customize their braking systems according to specific requirements and regulatory standards.

Another key characteristic of the SD-08-2415A is its rugged construction, which is designed to withstand harsh operational environments. The module is resistant to vibrations, moisture, and temperature fluctuations, making it reliable for use in heavy-duty applications. This durability ensures that the unit maintains consistent performance over time, even in challenging conditions.

Furthermore, the BENDIX SD-08-2415A is equipped with advanced communication protocols, enabling it to exchange data with other vehicle systems. This capability enhances overall vehicle performance and allows for real-time monitoring of braking efficiency.

In conclusion, the BENDIX SD-08-2415A stands out as a leading solution in the commercial vehicle braking industry, offering a unique combination of integrated systems, advanced technology, and robust durability. Its ability to improve safety, extend component life, and adapt to various vehicle configurations makes it an essential component for modern fleets. As the industry continues to evolve, the SD-08-2415A represents the future of vehicle braking technology, prioritizing both performance and safety.
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