|Re: [GMCnet] Drum brakes [message #329051 is a reply to message #329050]
||Sun, 11 February 2018 10:31
Registered: May 2010
Yes but they don't have weenie-a$$ ways to apply the stopping forces. They|
use air pressure, a lot of it. And what do you think those runaway sand
traps on steep downgrades are there for? As well as the brake check areas
at the summits?
Brake linings are a consumable product. They need constant
maintenance. That is another advantage of disc brakes. Ease of inspection
PACCAR, a European company that owns Kenworth trucks, among other
brands, has a technology and development center in LaConner, Washington.
They develop products for the trucking industry, including brakes. We (the
GMC CASCADERS) had the rare opportunity to visit the center last year. Lots
of stuff coming down the pike on brakes. Including automatic application
via computer controls when weary drivers approach corners too fast, and
breach summits with too much speed, etc. They have a shaker table there big
enough to hold a fully loaded Semi truck and 55 foot trailer for testing.
High tech stuff for sure.
78 GMC ROYALE 403
On Feb 11, 2018 7:21 AM, "John R. Lebetski" wrote:
> 80,000 pound GVW Tractor trailer rigs seem to still be using those "
> horrible" drum brake things just fine.
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
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