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Crankset Disassemble | Alpha Series Velomobile Maintenance

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Crankset Disassemble | Alpha Series Velomobile Maintenance

Article made with the text from video. Enjoy!

 

ALPHA SERIES TECHNICAL SUPPORT >>>

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Hi, I'm Jan from VelomobileWorld.com and in the today's video I wanna show you how to disassemble your crankset.

 

This is practical in case you order for example a 155 but you better fit in 140 or other way around, so that's what I show you today.

 

So, for this one you need an inbus (Allen key) 5 and an inbus 10. I have here a torque wrench with meter, but you don't necessarily need this option, so come closer. First you untighten/loosen this screw... You can see a lot of glue remains, this you need to put also again back on, but I will show you. So if you untighten that screw and this screw you can take off the cranks. On the other side is always good to first take off the chain. And then you can push it out. If that goes a little bit heavy, what often happens, you can hammer a bit with rubber hammer.

 

Now you have taken out the cranks, you can replace it, of course you take off the chain ring and replace the cranks, but I have another video about it, now I show you how to but it back.

 

Before you put back everything check if there is a bushing between these two bearings. This is to keep these bearings on the requested length, also... I almost forgot to show you, there is a little spacer here, to have enough distance. Now we have... and push back. Of course you put the cranks exactly on the opposite direction. In the beginning of my career I made a mistake, actually that's almost impossible anymore and this type... Now that's impossible what I wanted to tell but, it was possible previous with other systems to put the crank a little bit like this and that's quite annoying.

 

Put enough Loctite on it, this is a bit, yeah... this is more than enough. So I put it in here... So if you didn't had a bushing between the two bearings, pull this screw a little bit until you feel there is no play anymore and it turns still very easy. So we tighten it with 7 Newton and then you can tighten this one still a little bit on, in order it push it, this helps, but because we made a bushing between, you can tighten it in a different way, because we noticed that the people tighten this one too much and then the bearings were...

 

So the central screw I tightened it with 13 Newton-meter, so that's about 3 kg by 1 meter, so if you would have a lever of like a thirty centimeter, that will be about 9 kg force that I use. So you have to see how long your lever is, then estimate the force you put on it.

 

So the second screw I tighten... and that one I tighten it about 6-7 Newton, so that means 600 grams on a lever of a meter, so that would be... again you do the math and you will know. Ok...

 

So that's the way how to change the standard crankset. If you like the video please put a thumbs up, subscribe, let a comment behind and see you next time, bye bye.

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