Air Dryer Governor Valve

The pressure moves the air dryer purge.

Air dryer governor valve.

Repair or replace purge valve. Wabco air dryer components. Check governor cut out setting. Air governor not working properly.

Cycle of the air dryer. This suspends the delivery of compressed air to the bendix ad 9si air dryer. Repair or replace as needed. Axle beams and assemblies.

Test with shop air at 150 psi. Valve assembly figure 3 ad 9 air dryer purge cycle governor unloader port to the ad 9 air dryer end cover control port. Similarly the governor also supplies this air pressure signal to the 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.

Locate leak s and repair. Wabco type air governor for system saver 1200 plus air dryers. Home truck trailer air system air valves governor valves. 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.

Wabco air valve components. Alter determining air reaches purge valve. The governor unloads the compressor by allowing air pressure to fill the line leading to the compressor unloader mechanism. Replaces freightliner tdas4324709202 and meritor s4324709202.

Pressure protection elements. Search this category. Install air dryer or automatic drain 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.

Operation operating tests or remanufactured unit or repaired with genuine bendix parts start the vehicle engine and build up. Axle assemblies hub to hub 20 10 stud axle assemby hub to hub 73 track. Air system leaks such as compressor discharge line air dryer reservoirs brake or suspension valves etc. Inspect governor per manufacturer s instructions.

Air dryer leaks from purge valve.