DESICCANT

 

 

OIL

 

 

 

 

 

COALESCING

 

 

 

 

 

FILTER

 

 

 

 

 

PURGE

 

 

 

REAR

REMOTE

ORIFICE

 

 

DELIVERY

RESERVOIR

 

 

 

 

PURGE

REMOTE

 

 

CHECK

 

RESERVOIR

 

 

VALVE

 

 

PURGE

 

 

 

 

 

PORT

 

 

 

 

 

CONTROL

 

 

 

 

 

PORT

 

 

 

 

PURGE

SUPPLY

 

 

 

FRONT

CONTROL LINE

 

 

 

RESERVOIR

 

PORT

 

 

 

 

GOVERNOR

 

 

 

 

 

 

 

TURBO

SAFETY

DELIVERY

 

 

 

PORT

 

 

ENGINE CUT-OFF

VALVE

 

 

 

 

 

TURBO

EXHAUST

 

PURGE

 

 

 

 

VALVE

 

 

 

PORT

 

 

 

 

 

 

 

COMPRESSOR

 

 

 

 

 

 

 

 

FIGURE 3 - BENDIX® AD-RP™AIR DRYER SYSTEM - CHARGE CYCLE

 

 

The aluminum body of the Bendix® AD-RP™air dryer contains the following serviceable components or assemblies: the turbocharger cut-off valve; the heater and thermostat assembly; a delivery check valve assembly; and the combined purge and relief valve assembly. All service and replacement can be accomplished from the exterior of the dryer without removing it from the vehicle. The spin-on desiccant cartridge is removed and installed using a “strap wrench.”

The AD-RP air dryer has four female pipe thread air connections identifi ed as follows: (Also refer to Figure 1.)

Air Connection Port ID Function/Connection

CON 4

Control Port (purge valve control

& turbo cut-off)

 

 

 

SUP 1

Supply Port (air in)

 

 

DEL 2

Delivery Port (air out)

 

 

PT 22

 

(not identifi ed on

Remote Purge Port

the air dryer)

 

 

 

OPERATION

GENERAL

The AD-RP air dryer alternates between two operational modes or “cycles” during operation: the Charge Cycle and the Purge Cycle. What follows is a description of operation separated into these “cycles”.

CHARGE CYCLE (Refer to Figure 3.)

When the compressor is loaded (compressing air) compressed air — along with oil, oil vapor, water and water vapor — fl ows through the compressor discharge line to the supply port of the air dryer body. Air entering the supply port immediately encounters the “turbo cut-off” valve. With no air pressure in the control port, the turbo cut-off piston moves the valve away from its seat in the body, allowing the supply air to enter the body. As air travels through the end cover assembly, its direction of fl ow changes several times, reducing the temperature, causing contaminants to condense and drop to the bottom (or sump) of the air dryer body. After exiting the end cover, the air fl ows into the desiccant cartridge where an oil separator — or coalescing fi lter, if equipped with a Bendix® PuraGuard® oil coalescing

3

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BENDIX SD-08-2415A manual Operation, General, Air Connection Port ID Function/Connection
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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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