BENDIX BW1450 manual Testing the AD-4AIR Dryer, All electrical connections must be waterproofed

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3.For AD-4™air dryer end covers with a dual terminal (See Figure 6) heater connections, the power and insulated return wires may be connected to either terminal. An 8-10 amp fuse should be installed in the power carrying wire. Use 16 gauge wire for both power and return.

4.All electrical connections must be waterproofed.

5.Tie wrap or support all electrical wire leading to the AD-4™air dryer at 6 - 8 inch intervals. Note: Wires should have sufficient slack and not be completely taught.

TESTING THE AD-4™AIR DRYER

Before placing the vehicle in service, perform the following tests:

1.Close all reservoir drain cocks.

2.Build up system pressure to governor cut-out and note that the AD-4™air dryer purges with an audible escape of air.

3.“Fan” the service brakes to reduce system air pressure to governor cut-in. Note that the system once again builds to full pressure and is followed by a purge at the AD-4™air dryer exhaust.

4.It is recommended that the following items be tested for leakage to assure that the AD-4™air dryer will not cycle excessively.

(A)Total air system leakage (See Bendix publication BW-5057 “Air Brake Handbook”).

(B)Compressor unloader mechanism.

(C)Governor.

(D)Drain cock and safety valve in first (supply) reservoir.

(E)All air connections leading to and from the first (supply) reservoir.

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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.
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