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Wayne
Wayne, Journeyman
Category: Medium and Heavy Trucks
Satisfied Customers: 8452
Experience:  worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling
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Have a Volvo truck tractor I am getting service brake

Customer Question

Have a Volvo truck tractor I am getting service brake application when park brakes are released
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Expert:  Wayne replied 1 year ago.

Hi I'm Wayne

I will help you with this

this sounds to be a Maxi brake chamber internal leak

you can pinch off the hoses 1 at a time on the service side to see which one it is

Hi if this helped you

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Not Poor/Bad service

Customer: replied 1 year ago.
I unhooked all 4 park chambers from the service side and released the tractor park brakes and only the front drive axle leaks air from the service hoses
Expert:  Wayne replied 1 year ago.

Thank you for that

so it is not coming from the rear hoses

only the fronts

Customer: replied 1 year ago.
Expert:  Wayne replied 1 year ago.

Thank you for that

I will have to look in Air brake book,

back in a short

Customer: replied 1 year ago.
I found the problem it's the service valve
Expert:  Wayne replied 1 year ago.

Hi

OK Great

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