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Brake pedal sound


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  • 2 weeks later...

The foot valve is not centered in the mounting bracket . When you push down on the brake pedal , the pedal hits the plunger which presses on the foot valve. When the foot valve is not centered the plunger pushes down more on one side than the other of the foot valve and a small amount of air shoots past the seals into the cab

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On 7/1/2018 at 6:51 PM, mackcat12 said:

Thanks Mackpro is Mack going to fix this or is this a case of the squeaky wheel gets the grease

One year warranty on this issue. There's really not a official bulletin on this but I have some unofficial info from the higher ups that I can send you and explains it better. Message me for contact info and I can send it to you. 

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