BENDIX SD-08-2415A manual Replace the leaking accessory. If excessive leakage

Page 17

Bendix® AD-RP™AIR DRYER TROUBLESHOOTING CHART

SYMPTOMS

CAUSE

REMEDY

1. Air dryer is constantly

A. Excessive system leakage.

A. Test fi ttings, hoses, lines and connections. Apply

“cycling” or purging.

IMPORTANT: Note whether

soap solution to detect excessive leakage. Tighten

Air dryer purges

air pressure loss is shown

or replace, as needed, then repeat the air dryer

frequently (every

on dash gauge(s). Pressure

charge/purge cycle and observe the gauge installed

4 minutes or less)

loss shown on gauges is

in the supply reservoir. If the leakage is within limits,

while vehicle is idling.

caused by service brake

remove the gauge from the reservoir and replace the

(continued)

system or component

drain cock or valve. If excessive leakage is detected,

 

leakage. Pressure loss NOT

continue testing.

 

SHOWN on the gauges is

Test accessories connected to supply reservoir.

 

caused by supply system

 

Drain all air pressure from the system, disconnect

 

or component leakage.

 

all air lines leading to accessories (fan clutch,

 

(continued)

 

wipers, air seats, etc.) and plug the reservoir at the

 

 

 

 

disconnection point. Build air system pressure until

 

 

the air dryer purges and observe the supply reservoir

 

 

gauge. If the leakage is no longer excessive, repair or

 

 

replace the leaking accessory. If excessive leakage

 

 

is detected, continue testing.

 

 

Test governor leakage. Build the system pressure to

 

 

governor cut-out, turn off the engine and apply a soap

 

 

solution to the governor exhaust port and around the

 

 

governor cap. Leakage should not exceed a one (1)

 

 

inch bubble in fi ve (5) seconds. Reduce the system

 

 

pressure to 80 psi or less, and re-apply soap solution.

 

 

Leakage should not exceed a one (1) inch bubble in

 

 

fi ve (5) seconds. If excessive leakage is detected in

 

 

either test, repair or replace the governor.

 

 

Test compressor unloader leakage. Drain all air

 

 

pressure from the system and remove the governor

 

 

from the compressor. Temporarily plug the governor

 

 

unloader port or the air line that mated with — or

 

 

connected to — the compressor. Build the air

 

 

system pressure until the air dryer purges, then

 

 

IMMEDIATELY SHUT OFF THE ENGINE. Observe

 

 

the air gauge in the supply reservoir. If the leakage

 

 

is within limits, replace the compressor unloaders.

 

 

Re-connect the governor to the compressor (after

 

 

removing the plug installed in governor) and retest

 

 

while observing the supply reservoir gauge. If

 

 

excessive leakage is detected, continue testing.

 

 

Test the air dryer purge valve and outlet (delivery)

 

 

check valve. Drain all air pressure from the system,

 

 

remove the control line connection at the air dryer,

 

 

and plug the end of the air line leading to the governor

 

 

(not the air dryer control port). Build the system

 

 

pressure to governor cut-out and observe the air

 

 

gauge. If little or no pressure drop is observed,

 

 

replace the air dryer check valve. If the pressure drop

 

 

continues, apply a soap solution to the air dryer purge

 

 

exhaust and purge control port (where the control

 

 

line was removed). Leakage should not exceed a

 

 

one (1) inch bubble in fi ve (5) seconds. If leakage is

 

 

excessive, repair or replace purge valve assembly.

 

 

 

 

 

(continued)

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Contents Description SD-08-2415ATo Avoid Personal Injury or Death General Safety GuidelinesAir Connection Port ID Function/Connection OperationGeneral Purge Cycle Refer to Figure Desiccant RE-ACTIVATION Drying the Desiccant Purge PistonEvery 10,800 hours or every 350,000 miles or Months Preventive MaintenanceOperation & Leakage Tests Also see Video BW2327 Maintenance Kits Available Repairing the Bendix AD-RPAIR Dryer GeneralBendix AD-RP AIR Dryer Removal Part Kit NumberDisassembly Turbo CUT-OFF Valve Disassembly for Part Replacement and KIT InstallationDisassembly PURGE/RELIEF Valve Disassembly Heater and ThermostatAssembly PURGE/RELIEF Valve Assembly Turbo CUT-OFF ValveAssembly Heater and Thermostat Assembly Desiccant CartridgeTotal Vehicle Requirement Retrofitting the Bendix AD-RPAIR DryerVehicle Application Requirements Vehicle Preparation Connecting the AIR LinesLocating the Bendix AD-RPAIR Dryer on Vehicle Mounting the Bendix AD-RP AIR DryerTesting the Bendix AD-RP AIR Dryer Testing the Bendix AD-RPAIR Dryer AIR System Without Bendix AD-RPREMOTE Purge AIR Dryer Symptoms Cause Remedy Bendix AD-RPAIR Dryer Troubleshooting ChartReplace the leaking accessory. If excessive leakage Bendix AD-RPAIR Dryer Troubleshooting Chart Must be installed. Consult your local authorized Straight or a 45 fi tting. For more information on Damage the compressor and is not covered under Check to determine if air is reaching the fi rst reservoir Bendix AD-RPAIR Dryer Troubleshooting Chart Bendix AD-RPAIR Dryer Troubleshooting Chart Page High Air Use Low Air UseHolset Type E & QE Compressor with Econ Valve Conventional Supply System & Integral Purge AIR DryerHolset Type Compressor EconLog-on and Learn from the Best

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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