W9JAB 156 #1 Posted December 28, 2009 :thumbs: I would like to know if any has the proper way to route the drive chain on a St325/st325 blower? The blower I have came with the chain routed under the main {large} sprocket of the auger. But I have seen photos of the chain routed over the large sprocket and over the idler {adjusting} sprocket. The manuals I have do not show any details on this, any Help? :notworthy: Share this post Link to post Share on other sites
pfrederi 18,643 #2 Posted December 28, 2009 From the drive shaft down under the auger sprocket up to the top idler (back side) over the top straight down the front to the lower idler (its adjustable)around it and back teo the drive shaft. Share this post Link to post Share on other sites
W9JAB 156 #3 Posted December 28, 2009 :notworthy: Is this right? http://www.wheelhorseforum.com/index.php?showtopic=13954 Share this post Link to post Share on other sites
nylyon-(Admin) 7,880 #4 Posted December 28, 2009 If you're talking about the chain routing, that is correct for that model blower. I don't know if yours is the same or not. If the chain is routed wrong it will likely rub on the housing by the drive sprocket. Share this post Link to post Share on other sites
catman81056 3 #5 Posted December 28, 2009 Running the chain over or under the main sprocket changes the direction of the auger rotation. I bought a blower for a vertical shaft tractor, got it mounted up and the auger was turning the wrong way(blowing snow out the front instead of up thru the chute) I added an idler and ran the chain under the main sprkt and all was well. If you have the chain on wrong you'll know it :notworthy: Share this post Link to post Share on other sites
W9JAB 156 #6 Posted December 28, 2009 The example I was looking at has two idlers, I only have one. It's just that going under the auger sprocket looks like it would have a tendency to slip, if the chain loosened up. Share this post Link to post Share on other sites
