Volvo D13 Air Compressor Unloader Valve

Volvo trucks north america d date group no.

Volvo d13 air compressor unloader valve.

The compressor s unloader mechanism and governor along with a synchro valve for the bendix duraflo 596 air compressor control the brake system air pressure between a preset maximum and minimum pressure level by monitoring the pressure in the service or supply reservoir. My air compressor is leaking coolant internally externally. In some cases the air compressor may have a cracked head or develop a hole in the cylinder wall. The air compressor unloader valve vents trapped air.

If your electrically powered air compressor is having a hard time starting try pulling the power cord and opening the drain valve to void all air from the tank. About product and suppliers. We ship our air compressors within 24 hours of order placement and we export to over 98 different countries. 2009 international prostar purges air every 15 seconds already replaced governor purge valve air compressor head for the unloader valve and a new signal line from governor to the air compressor.

Most of the time an internal diesel air brake compressor coolant leak is the result of a failed head gasket. This will effectively emulate the operation of the unloader valve as any air trapped over the piston will flow into the tank as the tank pressure drops. As the system reservoir air pressure drops the force exerted by the air pressure on the piston will be reduced and the governor spring will push the piston down. Plug the compressor back in.

Volvo 2014 d13 it says air dryer malfunction on dashboard i have replaced air dryer assembly.