how to use a crank puller

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On this article I’ll clarify use a park instrument crank puller.

Park Tool crank puller

The Park Instrument crank puller was one of many first bicycle instruments I purchased. Park Instrument has numerous variations all designed to attain the identical factor. I’ve the CWP-7, a crank puller with out a deal with meant to make use of with an adjustable wrench.

Studying: use a crank puller

It has two suggestions with totally different diameters, meant for various backside brackets: customary sq. tapered backside brackets and Octalink backside brackets.

Since I do not run Octalink backside brackets I solely use this one for sq. tapered backside brackets.

CCP 22

There additionally the CCP-22 for sq. tapered solely, and the CCP-44 for Octalink backside brackets.

Video Tutorial

Step 1. Eradicating the mud cap

The crank is tightened onto the spindle with a crank bolt. Principally older-style cranks seal this bolt with a mud cap.

dust cap

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Earlier than you get to the half the place you’ll be able to take the crank of the spindle, you will have to take away the mud cap. In my case there’s slightly slot on the fringe of the cap of the mud cap which is pressed into place. You’ll be able to put in a flat-headed screwdriver and pry it out.

  • dust cap3
  • dust cap3
  • sakae dust cap2

Different variations of mud caps have vast slits within the middle, a gap for an allen key or two holes or a pin spanner. All of those variations are screwed into place.

Authentic mud caps are each uncommon and costly. That is as a result of the flimsy plastic damages simply they usually are inclined to get misplaced. So watch out when attempting to get them free.

Step 2. Eradicating the crank bolt

crank bolt wrench

The crank is held into place with a crank bolt. I’ve a Park Instrument crank bolt wrench, which has a 14mm socket on one facet and an 8mm hex instrument on the opposite.

CCW 5 005

On this case I will be needing the socket wrench half.

Step 3. Eradicating the chain

crank bolt removal

When the crank comes of with the chain nonetheless on it, it get’s caught within the derailleur cage as a result of it would not bend sideways. So it is a good factor to take away the chain and lay it on the bracket housing earlier than eradicating the crank.

Step 4. Some recommendations on use a Park Instrument crank puller

removing chain

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Ensure that the tip is rotated far sufficient outwards or to take away it altogether. Otherwise you’ll be like me and assume the crank puller will not transfer in any additional as a result of the threads are soiled as a substitute of the press already sitting in opposition to the crank bolt.

remove press

Watch out to not cross-thread the tremendous threads within the crank. Particularly when the mud caps are lacking the threads is perhaps soiled, making it troublesome to get the crank puller into place.

The threaded a part of the crank puller is screwed into the crank arm. When in place the rotating tip presses in opposition to the underside bracket spindle, pushing itself and the crank with it, away from the spindle.

crank puller in place

If the crank puller goes in about half an inch, you are good to go. Whereas holding the crank with one hand the opposite can rotate the press counterclockwise with the assistance of an adjustable wrench.

I by no means had an excessive amount of problem eradicating a crank with this instrument, irrespective of how previous and beat up they had been. If a crank will not budge, it is only a matter of exerting a bit of additional power.

And that is use a Park Instrument crank puller! In the event you like this text give it a thumbs up. When you have any questions or ideas for brand new articles, let me know within the feedback beneath. Cheers.

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