I don't think that I'm all that incapable when it comes to reading instructions and following them, but the ones that explain how to replace the sprocket have me stumped. I'm at instruction #19 in http://www.concept2.com/us/support/manu ... cement.pdf
I can see that there are pliers being used to grip the sprocket, but the wrench on the other side of the axle has me perplexed... it looks like it's gripping a nut, but there's no nut anywhere near that size on the axle in the previous or next pictures, so where'd it come from, and what would it thread onto (as there are no threads on the part of the axle where that nut appears to be attached)?!
I assume that the sprocket is threaded the usual way, in that turning clockwise would tighten it to the axle and counterclockwise would loosen it.
But at the moment I'm stuck with my erg in pieces on the floor with no apparent way to swap sprockets.
Anyone have ideas? I'm sure C2 will enlighten me tomorrow sometime, but I'd rather get this done sooner if possible.
Thanks,
-Eric
sprocket replacement question
I don't have a D, but looking at the instructions, it looks like step 6 is removing a nut to pull off the fan. Or maybe the fan itself screws onto the axle. You'll have to use that nut (or find one that fits) to use just for leverage to remove the sprocket, since it will be tight from the pulling on the chain as the rower is used. Sound about right?
Mark Underwood. Rower first, cyclist too.
I came to the same conclusion myself, even though the picture doesn't make sense, as the nut that holds the flywheel in place is a 9/16" one, and can't slide down as far on the axle as that picture suggests... not to mention there are no threads on the axle where that larger mystery nut is supposed to be held in place (so what would keep it from spinning?).
Unfortunately, that still leaves me stuck, though I was able to get the sprocket off, I'm now left with that flywheel-end nut stuck on the axle and no good way I can see to get that off.
Given the way the threads are on the axle, the nut opposite the flywheel threads in the same direction as the sprocket itself, and the nut on the flywheel end threads the other way. Whether I try to use the sprocket or the other nut, there's little chance I'll be able to get the nut off the flywheel side, given how much force was needed to get the sprocket off and how well stuck on that nut is at the moment.
Unfortunately, that still leaves me stuck, though I was able to get the sprocket off, I'm now left with that flywheel-end nut stuck on the axle and no good way I can see to get that off.
Given the way the threads are on the axle, the nut opposite the flywheel threads in the same direction as the sprocket itself, and the nut on the flywheel end threads the other way. Whether I try to use the sprocket or the other nut, there's little chance I'll be able to get the nut off the flywheel side, given how much force was needed to get the sprocket off and how well stuck on that nut is at the moment.