BENDIX BW1450 manual Description, Port l.D Function/Connection

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®

Bendix® AD-4Air Dryer

SD-08-2407

UPPER

UPPER

BRACKET

BRACKET

 

LOWER

LOWER

BRACKET

BRACKET

SUPPLY

 

PORT

CONTROL

 

 

PORT

 

 

 

SUPPLY

 

 

 

PORT

 

PURGE

DELIVERY PORT

PURGE

THERMOSTAT

EXHAUST

 

TERMINAL

 

 

EXHAUST

 

 

 

EXTENDED PURGE AD-4AIR DRYER

STANDARD AD-4AIR DRYER

FIGURE 1 - AD-4AIR DRYER MODELS

DESCRIPTION

The function of the AD-4air dryer is to collect and remove air system contaminants in solid, liquid and vapor form be- fore they enter the brake system. It provides clean, dry air to the components of the brake system which increases the life of the system and reduces maintenance costs. Daily manual draining of the reservoirs is eliminated.

The AD-4air dryer consists of a desiccant cartridge and a die cast aluminum end cover secured to a cylindrical steel outer shell with eight cap screws and nuts. The end cover contains a check valve assembly, a safety valve, purge valve mechanism, a cast-in heater element with a replaceable thermostat assembly and three threaded air connections.

The three air connections are identified with embossed numbers and lettering. The identification and function of each is as follows:

Port l.D.

Function/Connection

CON 4

Control Port

 

(from unloader port on governor).

SUP 11

Supply Port (air in).

DEL 2

Delivery Port (air out).

A cast-in heater element and replaceable thermostat with an external terminal are provided.

The voltage and wattage requirements of the heater and thermostat are shown with embossed numbers and letters in the recess adjacent to the control port marked “CON.”

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Contents Port l.D Function/Connection DescriptionCharge Cycle refer to Figure Operation of the AD-4AIR DryerPurge Cycle refer to Figure AD-4AIR Dryer Purge Cycle Preventive MaintenanceAD-4AIR Dryer Sectional View Every 10,800 hours or 300,000 miles or 36 months Operation & Leakage TestsRebuild the air dryer including the desiccant cartridge Rebuilding the AD-4AIR Dryer Maintenance Kits AvailableGeneral AD-4AIR Dryer Assembly AD-4AIR Dryer Removal DisassemblyAssembly Cleaning & InspectionThermostat Disassembly Refer to Figures Total Vehicle Reservoir Volume Requirement RE-INSTALLATIONRetrofitting the AD-4AIR Dryer Vehicle Application RequirementsConnecting the AIR Lines All electrical connections must be waterproofed Testing the AD-4AIR DryerPresented AD-4AIR Dryer Troubleshooting ChartAD-4AIR Dryer Troubleshooting Chart Pressure should not drop below Cut-In pressure With gauge installed at RES port of governorAt the onset of the compressor Unloaded Cycle. If pressure drops, check for kinks orUnloaded for a minimum of 30 seconds. This How to help prevent discharge line freeze-ups, see Points where ice may form and block the flow. IfEngine air filter and service if necessary if Possible, check the air filter usage indicatorAD-4AIR Dryer Troubleshooting Chart Preventative Maintenance Section AD-4AIR Dryer Troubleshooting Chart High Air Use Low Air UseConventional Supply System & Integral Purge AIR Dryer Additional Troubleshooting InformationHolset Type E & QE Compressor with Econ Valve Holset Type E & QE Compressor W/O Econ Valve

BW1450 specifications

The BENDIX BW1450 is a highly regarded air brake system that delivers exceptional performance and reliability in the heavy-duty truck and automotive sectors. The BW1450 is designed with advanced technologies and engineering breakthroughs that ensure enhanced safety and efficiency in braking operations.

One of the standout features of the BENDIX BW1450 is its robust and compact design. Constructed to withstand the rigors of heavy use, the system is both lightweight and durable, allowing for easy installation and maintenance. It incorporates a corrosion-resistant finish that helps protect against environmental factors, ensuring longevity and dependability.

The BW1450 leverages advanced modulation technology, which provides superior control during braking. This technology allows for gradual engagement and disengagement of the brakes, significantly reducing the risk of skidding or jackknifing during emergency stops. The system's sophistication extends to its ability to maintain consistent brake performance under various load conditions, making it a versatile choice for different vehicle types.

Another significant characteristic of the BENDIX BW1450 is its integrated Air Disc Brake technology. This feature not only improves the overall stopping power but also results in shorter stopping distances. In addition to enhanced performance, the air disc brakes are easier to maintain compared to traditional drum brakes, reducing downtime and service costs.

The BENDIX BW1450 also incorporates smart sensor technologies that monitor brake performance, providing real-time data to drivers and fleet operators. This capability enhances fleet management as it allows for timely maintenance interventions and ensures that the braking system operates optimally at all times.

Safety is a paramount concern in any braking system, and the BENDIX BW1450 is equipped with an anti-lock braking system (ABS). This feature prevents wheel lock-up during hard braking, thus providing additional control in slippery conditions and enhancing the vehicle's stability. Moreover, the system meets or exceeds various industry safety standards, reinforcing its position as a reliable choice for heavy-duty applications.

In conclusion, the BENDIX BW1450 air brake system represents a combination of innovative design, cutting-edge technology, and reliable performance. Its lightweight construction, advanced modulation control, air disc braking capabilities, and integrated safety features make it an exemplary choice for the demanding requirements of heavy-duty vehicles.