Abs and air line repairs

On the Freightliner the part that makes the clicking noise is the M21 abs modulator.  This part is now obsolete and was replaced by the M30 and that was replaced by the M32.  It works by sensing when the tire is going to skid the sylinoid closes the intake and opens the exaust preventing the tire from skidding.  It then reopens the intake and closes the exaust to reaply the brakes.  This system is designed so that even if the abs is not functioning correctly the brakes still work as normal the will just be able to lock up.  This is the url for the bendix site http://www.bendix.com/en/servicessupport/partnumbersearch/partnumbersearch_1.jsp
I also completed the two air line crimping repairs that you wanted us to do in class which are the first two pictures.