it indicates the pump is defective

These highlighted features are:

ultra-compact

5000452903

A0174200318

EBS EKBO.2.12A REPAIR KIT COMPRESSOR Head Torches it indicates the pump isThe compressor builds up & maintains air pressure required to operate air brakes & are either gear driven directly from the engine or belt driven. Most compressors use the trucks lubrication & cooling systems, some are self lubricated & some are air cooled. All compressors run continuously while the engine is running, but air compression is controlled and limited by a governor which loads or unloads the compressor. In the loaded stage, air is pumped