Air Dryer Governor Valve

Wabco type air governor for system saver 1200 plus air dryers.

Air dryer governor valve.

Wabco air dryer components. Pressure protection elements. Valve assembly figure 3 ad 9 air dryer purge cycle governor unloader port to the ad 9 air dryer end cover control port. Axle beams and assemblies.

The governor unloads the compressor by allowing air pressure to fill the line leading to the compressor unloader mechanism. Governor gasket special gasket see note 6 governor non adjustable 130 psi cut out small o ring bolts check valve body spring large o ring adapter figure 7 ad is air dryer and reservoir system delivery check valve cut out pressure a 1 bubble in 10 seconds is acceptable see figure 7 throughout this procedure. Cycle of the air dryer. 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.

Test with shop air at 150 psi. Air governor not working properly. Repair or replace purge valve. The pressure moves the air dryer purge.

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. Axle assemblies hub to hub 20 10 stud axle assemby hub to hub 73 track. Air dryer leaks from purge valve. Search this category.

Locate leak s and repair. Similarly the governor also supplies this air pressure signal to the purge valve. 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. Install air dryer or automatic drain valve.

Air system leaks such as compressor discharge line air dryer reservoirs brake or suspension valves etc. Check governor cut out setting. Alter determining air reaches purge valve. This suspends the delivery of compressed air to the bendix ad 9si air dryer.

Operation operating tests or remanufactured unit or repaired with genuine bendix parts start the vehicle engine and build up. Readjust if necessary or replace governor if faulty clean or replace line. Inspect governor per manufacturer s instructions. Replaces freightliner tdas4324709202 and meritor s4324709202.

Wabco air valve components.