Air brake switch electric part

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Topic: Air brake switch electric part (Read 441 times) previous topic - next topic

Air brake switch electric part

April 28, 2020, 03:17:52 pm

What is replaceable electrical part of dash parking brake switch?

Problem is DRL lights do not come on. Traced problem to electric part of dash air brake parking brake. When turned off, the switch is supposed to make a ground connection to R15 This is not happening.

Re: Air brake switch electric part

Reply #1 – April 28, 2020, 06:11:33 pm

I rebuilt my parking brake control a while back.

If your newer coach uses the same brake control (I don't know...) then the electric switch would be a Bendix 228750 (60 PSI).

You'll find some photos of the switch in my write-up of the rebuild.

Bendix PP-1 Repair Kit

Re: Air brake switch electric part

Reply #2 – April 28, 2020, 06:47:10 pm

Thanks this is helpful but not the same part. I will try to get pictures. There is a part number on part of the unit: Meritor/Wabco 93664900 but haven't been able to find a reference to it. I have a local shop looking for it as well.

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