BENDIX BW1450 manual AD-4AIR Dryer Troubleshooting Chart, Presented

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AD-4™AIR DRYER TROUBLESHOOTING CHART

SYMPTOMS

CAUSE

REMEDY

1. Dryer is constantly

A. Excessive system

A. If leakage IS SHOWN on gauges test for

“cycling” or purging.

leakage.

excessive service brake system leakage.

Dryer purges frequently

IMPORTANT: Note whether

Allowable leakage:

(every 4 minutes or less

air pressure loss is shown

Single vehicle - 1 psi/minute either service

while vehicle is idling).

on dash gauge(s). Pressure

reservoir.

 

 

loss shown on gauges is

 

Tractor trailer - 3 psi/minute either service

 

caused by service brake

 

reservoir. Repair and retest as required.

 

system or component

 

 

 

leakage. Pressure loss NOT

 

 

SHOWN on gauges is

 

 

caused by supply system or

 

 

component leakage.

 

B. If leakage is NOT SHOWN on gauges test for excessive supply system leakage.

Remove drain cock or valve in supply reservoir (wet tank) and install air gauge. Build system pressure, allow air dryer to purge and observe air gauge in supply reservoir. Pressure drop should not exceed 1 psi per minute. Perform tests 1 to 6 in the order

presented.

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Contents Description Port l.D Function/ConnectionPurge Cycle refer to Figure Operation of the AD-4AIR DryerCharge Cycle refer to Figure Preventive Maintenance AD-4AIR Dryer Purge CycleAD-4AIR Dryer Sectional View Rebuild the air dryer including the desiccant cartridge Operation & Leakage TestsEvery 10,800 hours or 300,000 miles or 36 months General Maintenance Kits AvailableRebuilding the AD-4AIR Dryer AD-4AIR Dryer Assembly Disassembly AD-4AIR Dryer RemovalCleaning & Inspection AssemblyThermostat Disassembly Refer to Figures Retrofitting the AD-4AIR Dryer RE-INSTALLATIONTotal Vehicle Reservoir Volume Requirement Vehicle Application RequirementsConnecting the AIR Lines Testing the AD-4AIR Dryer All electrical connections must be waterproofedAD-4AIR Dryer Troubleshooting Chart PresentedAD-4AIR Dryer Troubleshooting Chart At the onset of the compressor Unloaded With gauge installed at RES port of governorPressure should not drop below Cut-In pressure Cycle. If pressure drops, check for kinks orUnloaded for a minimum of 30 seconds. This Engine air filter and service if necessary if Points where ice may form and block the flow. IfHow to help prevent discharge line freeze-ups, see Possible, check the air filter usage indicatorAD-4AIR Dryer Troubleshooting Chart Preventative Maintenance Section AD-4AIR Dryer Troubleshooting Chart Low Air Use High Air UseHolset Type E & QE Compressor with Econ Valve Additional Troubleshooting InformationConventional Supply System & Integral Purge AIR Dryer 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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