BENDIX BW1450 manual AD-4AIR Dryer Sectional View

Page 4

CHECK

PURGE

VALVE

ORIFICE

 

DESICCANT

 

PURGE VOLUME

 

CARTRIDGE

 

 

 

 

 

 

DESICCANT

 

 

 

 

BED

CHECK VALVE

 

PERFORATED PLATE

ASSEMBLY

 

 

 

 

NUT

 

 

OIL SEPARATOR

 

 

 

SEALING RING

 

 

 

 

WASHER

 

 

 

SEALING RING

 

 

 

 

SEALING RING

END COVER

 

 

 

SEALING RING

 

 

 

 

 

 

 

 

SUPPLY

SPECIAL

 

 

SPRING

PORT

WASHER

 

 

PURGE PISTON

 

HEX HEAD

DELIVERY

 

 

 

O-RING

 

SCREW

PORT

EXHAUST

EXHAUST

 

PURGE

COVER

 

 

DIAPHRAGM

 

 

VALVE

 

 

 

 

 

 

 

 

 

 

FIGURE 4 - AD-4AIR DRYER SECTIONAL VIEW

 

 

 

Every 900 operating hours or 25,000 miles or every three

(3) months:

1.Check for moisture in the air brake system by opening reservoirs, drain cocks, or valves and checking for presence of water. If moisture is present, the desiccant may require replacement; however, the following conditions can also cause water accumulation and should be considered before replacing the desiccant:

A.An outside air source has been used to charge the system. This air did not pass through the drying bed.

B.Air usage is exceptionally high and not normal for a highway vehicle. This may be due to accessory air demands or some unusual air requirement that does not allow the compressor to load and unload (compressing and non-compressing cycle) in a normal fashion. Check for high air system leakage. If the vehicle vocation has changed it may be necessary to upgrade the compressor size. Refer to Appendix A, Table A and the column entitled Vehicle Vocation.

C.The air dryer has been installed in a system that has been previously used without an air dryer. This type system will be saturated with moisture and several weeks of operation may be required to dry it out.

D.Location of the air dryer is too close to the air compressor. Refer to Locating AD-4Air Dryer On Vehicle section and Appendix A, Table A, column 2 for discharge line length.

E.In areas where more than a 30 degree range of temperature occurs in one day, small amounts of water can accumulate in the air brake system due to condensation. Under these conditions, the presence of small amounts of moisture is normal and should not be considered as an indication that the dryer is not performing properly.

Note: A small amount of oil in the system may be normal and should not, in itself, be considered a reason to replace the desiccant; oil stained desiccant can function adequately.

4

Image 4
Contents Description Port l.D Function/ConnectionCharge Cycle refer to Figure Operation of the AD-4AIR DryerPurge Cycle refer to Figure Preventive Maintenance AD-4AIR Dryer Purge CycleAD-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 Disassembly AD-4AIR Dryer RemovalCleaning & Inspection AssemblyThermostat Disassembly Refer to Figures RE-INSTALLATION Total Vehicle Reservoir Volume RequirementRetrofitting the AD-4AIR Dryer 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 With gauge installed at RES port of governor Pressure should not drop below Cut-In pressureAt the onset of the compressor Unloaded Cycle. If pressure drops, check for kinks orUnloaded for a minimum of 30 seconds. This Points where ice may form and block the flow. If How to help prevent discharge line freeze-ups, seeEngine 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 Low Air Use High Air UseAdditional Troubleshooting Information Conventional Supply System & Integral Purge AIR DryerHolset 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.