09-26-2015, 07:55 PM
Does the pressure in the brake tank increase went the engine is running? Have you plugged in to AC power or started the generator and turned on the 120 volt air pump to see if the pressure comes up with the 120 pump?
If it does, your engine mounted air compressor may not be coming cycling on.
If it does, your engine mounted air compressor may not be coming cycling on.