Technical & Reference Section > Tech and Restoration

removing profile cranks

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downlowmatt:
Do I have to get the bearing out on one side first?

john4130:
the axle should just slide out with a bit of help from a hammer, then use the above method for removing the bearings and cups.

nosepickben:

--- Quote from: downlowmatt on September 05, 2015, 11:55 AM ---Do I have to get the bearing out on one side first?

--- End quote ---

Axle needs gently tapping out so you can get to remove the bearings.

dancetothedrummersbeat:
^ correct. The spindle should fit really tightly against the bearings, so it may need a slight bit of welly to push it through

downlowmatt:
Thanks guys... I managed to get the arms off and spindle out.
I was using a wooden drift to try and punch the spindle out... I stopped.
I then used different sized screwdrivers and gently tapped them in to prize out the bearing covers on one side, then did the same on the other.
After that I then put in the profile allen key bolts (M10?) and rather than using the drift I put a t shirt around a copper hammer and gave it some welly! I got the non chainring side crank arm off first, then the other side slid out as you'd expect.
Just need to get the bearings out now, which I'll draft through from the opposite side of the frame (although there is that central spacer inside which prevents me from using a square extension bar, I'll have to get a flat head screwdriver or something).
Cheers!

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