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How do I remove these cranks?

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How do I remove these cranks?

Old 10-11-15, 01:03 AM
  #1  
mushing
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How do I remove these cranks?

Hello all, I'm a newbie bike mechanic attempting to disassemble my bike but I'm not sure how to go about removing the cranks. They are Shimano Deore LX Hollowtechs, but I'm not sure of any more specifics. I've searched around but can't find anything matching my particular setup. I purchased a Park Tools CCW-5 crank wrench but the hex wrench side was far too small to fit inside (both length and width wise). I've never removed any crankset or bottom bracket, so I'm pretty confused about how to accomplish this. I already removed the large chain ring but this didn't provide any insight into removing the entire crankset. Any advice is much appreciated. The frame is a Specialized Stumpjumper FSR M4 from around 2002.
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Old 10-11-15, 02:21 AM
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Bezalel
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Looks like you have a self extracting bolt. Just undo the bolt and the bolt head will pull the crank off the spindle. IIRC you need a larger allen key than what is needed for square taper.
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Old 10-13-15, 01:42 PM
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mushing
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Originally Posted by Bezalel View Post
Looks like you have a self extracting bolt. Just undo the bolt and the bolt head will pull the crank off the spindle. IIRC you need a larger allen key than what is needed for square taper.
Thanks for the response. I don't think I have a large enough hex wrench so I'll have to pick one up. Do you know if there's a standard size for something like this? I'm guessing 10mm.
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Old 10-13-15, 04:00 PM
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Another tool you need is a caliper, so that you can measure things.

Harbor Freight often has 6" digital calipers on sale for around $10- well worth it.
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Old 10-13-15, 04:07 PM
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I love that you removed the chainrings; did you think the crank arms would come off then..?
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Old 10-13-15, 09:50 PM
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mushing
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Originally Posted by rmfnla View Post
I love that you removed the chainrings; did you think the crank arms would come off then..?
Ha not really, just looking to get a feel for how it all works. I was hoping to use the chain rings on another bike, perhaps without removing the cranks but quickly realized that wasn't going to work.

Originally Posted by Bezalel View Post
Looks like you have a self extracting bolt. Just undo the bolt and the bolt head will pull the crank off the spindle. IIRC you need a larger allen key than what is needed for square taper.
Well I was able to remove a bolt on each side but neither one pulled the cranks off. I tried tapping them off with a mallet but they still seem to be held in place by something more than friction.. but I'm not sure. Any other ideas? Do I need a crank pulling tool? Here's what it looks like now.
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Old 10-14-15, 01:30 AM
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Originally Posted by mushing View Post
Well I was able to remove a bolt on each side but neither one pulled the cranks off. I tried tapping them off with a mallet but they still seem to be held in place by something more than friction.. but I'm not sure. Any other ideas? Do I need a crank pulling tool? Here's what it looks like now.
In that case, you did not have self extracting bolts. You'll need a CCP-44 (Black handle) crank puller, the more common CCP-22 (Blue handle) will not work. The CWP-7 will also work but IMHO it is not a good value.

Crank Puller for Splined Cranks - Park Tool
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Old 10-14-15, 01:37 AM
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Looking at the photos, you do know that the head (the section where the clamp is located) on the stand is meant to stick out/be extended, not be used in the travel/folded position you currently have it in!
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Old 10-14-15, 06:48 AM
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I've only seen pictures of Hollowtech, but don't they have a pinch-bolt fastening the left crank to a shaft that is actually part of the right crank? Or am I confusing it with something else? Your crank looks like square taper to me.
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Old 10-14-15, 08:15 AM
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Originally Posted by habilis View Post
I've only seen pictures of Hollowtech, but don't they have a pinch-bolt fastening the left crank to a shaft that is actually part of the right crank? Or am I confusing it with something else? Your crank looks like square taper to me.
Hollowtech II cranks are a two-piece design with a pinch bolt on the non-drive side. The Hollowtech cranks in this thread are a three-piece crankset with a splined Octalink bottom bracket. The original poster will need a crank remover to remove them -- the Park Tool CWP-7 in my tool box would take 'em right off.

(I don't know why bezalel doesn't care for the CWP-7, but I'm sure he's got a reason. Personally, I like it. It's inexpensive, versatile, and easy to use. It has yet to let me down.)
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Old 10-14-15, 09:31 AM
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Originally Posted by SkyDog75 View Post
Hollowtech II cranks are a two-piece design with a pinch bolt on the non-drive side. The Hollowtech cranks in this thread are a three-piece crankset with a splined Octalink bottom bracket. The original poster will need a crank remover to remove them -- the Park Tool CWP-7 in my tool box would take 'em right off.

(I don't know why bezalel doesn't care for the CWP-7, but I'm sure he's got a reason. Personally, I like it. It's inexpensive, versatile, and easy to use. It has yet to let me down.)
Live and learn. Thanks!
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