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Re: Why Do Heavy Trucks Use Air Brakes Instead Of Hydraulic?
Posted to Technical Theory Forum on 4/5/2010 3 Replies

Hi Tim,

On another historical note; Mack used hydraulically actuated disc brakes on some steering axles through the 1980's. Parts were expensive and life was short. (;

They used an intensifier similar to this one.

[...] [[...]]

The rear brakes were "S"... Login to read more.

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