From: Santoken (santoken@bright.net)
Date: Mon May 06 2002 - 19:10:10 PDT
MVTrucker@aol.com wrote:
>
> Had a fellow call me for answers to his brake problem. He hauls
> 10,000 lbs. on steep grades. He uses engine compression to assist
> the brakes on long down hills, but the brake pedal eventually gets
> lower and lower so that it's only a couple of inches from the floor.
> At the same time the brakes get spongy. He said the brakes do
> get hot and after being on level ground a while, they return to normal.
> I try to answer the many questions people pose, but this is a new
> one on me. Could it be the DOT 5 Silicone fluid?
> Joe Young
Joe,
Probably a brake fade. As the friction surface continues to heat up,
the amount of friction that can be supplied by the shoes it reduced. I
have seen/heard of cases where in extreme cases braking is almost
entirely lost due to brake fade.
Kent Schaffer
1954 XM215
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