Adjusting cones on QR axle
09-27-14, 03:34 PM
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Adjusting cones on QR axle
I have a couple old Shimano hubs I'm going to start ripping apart and reassembling just as a practice/learning experience. So, I've Googled the procedure and came across this technique from Park Tools for adjusting the cones on a hub with a QR axle...
Essentially, the tutorial said to put the bike in a repair stand, flip the QR so the release is on the drive side with the QR nut against the axle but not the locknut. Then clamp the drive side of the wheel into the left side dropout with the QR, essentially mounting the wheel outside of the dropouts. Then working from the NDS the cone can be adjusted with the pressure of the QR.
Is this common? Working with the wheel mounted thus? Is there any fear of twisting the dropout?
Not that the hubs I'm going to rebuild [destroy] are in built wheels, but I'm guessing this technique would work with just the hubs huh?
Essentially, the tutorial said to put the bike in a repair stand, flip the QR so the release is on the drive side with the QR nut against the axle but not the locknut. Then clamp the drive side of the wheel into the left side dropout with the QR, essentially mounting the wheel outside of the dropouts. Then working from the NDS the cone can be adjusted with the pressure of the QR.
Is this common? Working with the wheel mounted thus? Is there any fear of twisting the dropout?
Not that the hubs I'm going to rebuild [destroy] are in built wheels, but I'm guessing this technique would work with just the hubs huh?
09-27-14, 03:46 PM
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You won't hurt the dropout so that's not a concern. But you have to do this right so the QR is actually compressing the axle, without binding the locknut you're working with. Remove the QR springs, and set it up with the nut end against the working side, and the dropout and lever head against the other. I prefer to work off the bike for this, and simply stack a few washers on the end under the QR lever head.
When tightened, the head presses on the the locknut through the washers, and the nut presses on the axle end compressing the axle so you can adjust and fine tune under loaded conditions.
When tightened, the head presses on the the locknut through the washers, and the nut presses on the axle end compressing the axle so you can adjust and fine tune under loaded conditions.
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09-27-14, 05:42 PM
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It's not common but it does work. As to adjusting bare hubs this way, it will be more difficult to feel when the play JUST goes away as you won't have the leverage of the rim to try to wiggle it.
