Posted by mike stone Idaho (aka COTM) on Monday, June 12, 2006 at 7:20PM :
In Reply to: Re: wheel cylinder question posted by whoops on Monday, June 12, 2006 at 5:57PM :
1000 psi in system
piston area .7sq in
1000x.7 = 700 lbs force
.9sq in piston
1000x.9 = 900 lbs force
the leading shoes (pw brake setup) to not
need much force as the rotation of the brakes
and the friction of the lining locks/jams the
shoe into the lower/bottom anchor
the rear shoes need more pressure to force the shoes to the drum
old time brakes 101
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