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This definitely isn't new at least in the states. Some equipment like the M-1's and even the venerable GG-1, all now retired, were particularly sensative to shutting down in fine, powdery snow.

Heavy snow is in general a problem if the equipment is not designed for it. It packs into the suspension, onto cables and blocks vents. The weight can pull cabling apart. Snow/ice jammed suspensions can at least worsen the ride quality. Repeated heating, like on brake gear, will cause the snow to melt and then refreeze to ice potentially causing problems if and when these chunks start falling off. You can also lose braking force due to snow or sometimes lock the brakes on an axle for 240 miles!

This report illustrates both the problems with snow and some of the ways to improve designs to deal with it.

by Jace on Mon Dec 6th, 2010 at 12:44:36 PM EST
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