Air Dryer Governor 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.

Air dryer governor valve.

Repair or replace purge valve. Test with shop air at 150 psi. 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. Operation operating tests or remanufactured unit or repaired with genuine bendix parts start the vehicle engine and build up.

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. Check governor cut out setting. Alter determining air reaches purge valve. Axle beams and assemblies.

Readjust if necessary or replace governor if faulty clean or replace line. Inspect governor per manufacturer s instructions. Pressure protection elements. Search this category.

The governor unloads the compressor by allowing air pressure to fill the line leading to the compressor unloader mechanism. Home truck trailer air system air valves governor valves. Air dryer leaks from purge valve. 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.

This suspends the delivery of compressed air to the bendix ad 9si air dryer. Locate leak s and repair. Replaces freightliner tdas4324709202 and meritor s4324709202. Axle assemblies hub to hub 20 10 stud axle assemby hub to hub 73 track.

Repair or replace as needed. Valve assembly figure 3 ad 9 air dryer purge cycle governor unloader port to the ad 9 air dryer end cover control port. Air governor not working properly. Wabco air dryer components.

Install air dryer or automatic drain valve. Wabco type air governor for system saver 1200 plus air dryers. Similarly the governor also supplies this air pressure signal to the purge valve. Air system leaks such as compressor discharge line air dryer reservoirs brake or suspension valves etc.

Cycle of the air dryer.