One of the things I discovered with the first installation back in 2014: even though I'm dealing with snow, in cold temps, the friction developed in the impeller area actually caused the UMWPE to heat up -- and expand, causing "bubbles" here & there which the impeller blades then began to hit.
I re-did the original install with a new piece, this time using ss counter-sunk blind rivets instead of a few screws -- and a lot more of them. That seemed to hold up much better, but now I know better where to put those rivets.
All I have to do now, unfortunately, is to cut/grind all those original ones away and re-install even more of them this time....
BUT -- the addition of that liner in the impeller area REALLY made a difference with the blower's performance, and the original steel impeller area had already developed holes in it (driveway used to be gravel, now paved) which the PE covered up very nicely. Too bad RAD Technologies used such thin steel in that area, IMHO, though I know these machines weren't really designed to throw stones....
So -- if I can get another 9 years or so out of it, that'll be good.
And hey -- at least it's no longer winter!
I re-did the original install with a new piece, this time using ss counter-sunk blind rivets instead of a few screws -- and a lot more of them. That seemed to hold up much better, but now I know better where to put those rivets.
All I have to do now, unfortunately, is to cut/grind all those original ones away and re-install even more of them this time....
BUT -- the addition of that liner in the impeller area REALLY made a difference with the blower's performance, and the original steel impeller area had already developed holes in it (driveway used to be gravel, now paved) which the PE covered up very nicely. Too bad RAD Technologies used such thin steel in that area, IMHO, though I know these machines weren't really designed to throw stones....
So -- if I can get another 9 years or so out of it, that'll be good.
And hey -- at least it's no longer winter!
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