Quote:
Originally Posted by allan5oh
I don't know, I think drums are a severely inferior design in many ways. For example, up here we have problems with the s-cam rollers. They simply rust away, and bind up. I had a problem with my front axle pulling to the left, the stroke was the same and everything. Turned out one of the rollers was seized. How am I supposed to "maintain" that? It has to come apart to do anything. Those rollers don't get any grease.
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no, they don't. i do however grease them where they run in the shoe web
that sounds like a salt brine issue?
i've only ever heard
bad stories about air disks; short life accompanied by high maintenance costs... i've never worked on equipment that had them.
in the shop, hydraulic disks on medium duties were quite expensive, and a short life..., i would expect the same with heavies.
are disks a better performing brake? yes
are disks more economical? no, and when disks do dominate the market, none of us here will ever see the price of brake maintenance (cost per mile) down where it is today again.
...but, they're comin' ;0)