Im trying to remove my crankset but the crank puller always gets stuck is it on too tight or what ? Any way to loosen it ? I tried putting on some WD-40 when its on but it doesn't help and it wont turn any farther (square tapered spindle)
Three answers:
anonymous
2009-09-01 01:18:41 UTC
Make sure the center bolt is backed off all the way and the crank puller is screwed in all the way.
A lot of force is used to tighten a crank arm onto a square taper spindle. It takes a similar amount of force to remove the crank arm from the spindle. This gets more complicated if it's been a looooong time since the cranks have been off, suggesting the cranks and spindle may have fused over time.
If you think there is reason (e.g., corrosion) to believe the cranks have bonded to the spindle, treating with a penetrating oil is a good idea. But wd40 won't make a difference. Liquid Wrench or (usually) PB Blaster is the way to go. Apply a small amount and allow it to work for at least a day or two before proceeding.
Follow the directions for the crank puller. If you don't, you run the risk of stripping out the threads in the crank arm. Not fun if that happens. Make sure the pin is all the way inside the nut before threading the puller into the crank arm; otherwise, you won't get the puller to seat fully. Screw the puller completely into the crank arm. Make sure the threads are clean, and a dab of grease won't hurt. When you begin turning the pin into the spindle, you'll feel resistance once the pin hits the spindle. It takes 30 ft-lbs torque to install, so expect the same on the removal. Get your hands in a high-leverage position, get a good grip on the wrench, and put a little weight behind it. Unless something is unusually wrong, it will come off. Just don't strip the threads or your knuckles.
anonymous
2009-08-31 22:32:15 UTC
loosen the bolts and try to wiggle it to get loose
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