Air Dryer Governor Valve

Repair or replace as needed.

Air dryer governor valve. Wabco type air governor for system saver 1200 plus air dryers. Page 1 bendix governor upper spring adjusting washer retaining seat screw ring o ring retaining locknut ring piston cover inlet pressure setting body exhaust spring valve 19 lower spring seat exhaust port spring guide 19 lower spring seat 8 o ring. Wabco air valve components. The pressure moves the air dryer purge.

Air governor not working properly. Valve assembly figure 3 ad 9 air dryer purge cycle governor unloader port to the ad 9 air dryer end cover control port. 2 figure 2 ad is air dryer and reservoir system charge cycle compressor governor purge control channel desiccant bed delivery check valve open purge reservoir primary port pri purge valve closed turbo cut. Some air dryers incorporate a pressure governor which outputs a control order to an air compressor outside the air dryer or to a drain valve in the air dryer based on the air pressure received from an air tank for storing dry air and maintains the pressure in the air tank within a prescribed range refer to patent literature 1 for example.

Operation operating tests or remanufactured unit or repaired with genuine bendix parts start the vehicle engine and build up. Wabco air dryer components. Readjust if necessary or replace governor if faulty clean or replace line. Test with shop air at 150 psi.

Air system leaks such as compressor discharge line air dryer reservoirs brake or suspension valves etc. Install air dryer or automatic drain valve. Air dryer leaks from purge valve. Check governor cut out setting.

Replaces freightliner tdas4324709202 and meritor s4324709202. Axle assemblies hub to hub 20 10 stud axle assemby hub to hub 73 track. Pressure protection elements. Alter determining air reaches purge valve.

The purge piston moves in response to air pressure causing the purge valve to open to atmosphere and partially closing off the supply of air from the compressor this will be. Inspect governor per manufacturer s instructions. Search this category. Cycle of the air dryer.

Repair or replace purge valve. Similarly the governor also supplies this air pressure signal to the purge valve. Locate leak s and repair. The governor unloads the compressor by allowing air pressure to fill the line leading to the compressor unloader mechanism.

This suspends the delivery of compressed air to the bendix ad 9si air dryer.