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Posted on Apr 16, 2009
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How to disassemble crank bearing on Schwinn Mesa Mountain Bike

I need to know how to disassemble the crank bearing on my Schwinn Mesa Mountain Bike. I think it is damaged, the assembly is loose and makes a clunk/sort of grind noise. Any help would be greatly appreciated!

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Ed

Ed

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  • Posted on Apr 19, 2009
Ed
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You wil need a couple of special tools, or be fairly creative with the tools you have.

  1. remove the dustcovers in the crank arms at the crank axle
  2. loosen the crank retaining nut/bolt.
  3. thread in a chank puller and pull the crank arms.
  4. remove the lock ring on the adjustable side of the crank axle (Requires lock ring wrench)
  5. remove adjustable bearing cup.
  6. remove axle and bearings
  7. replace or repair as needed.
Once you have it opened up ou can determine if you need new bearings or crank axle.
to assemble, reverse above procedure, insuring bearing play is minimalized.

Hope this helps.
Ed

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