Clean Free-hub on Neo Jumper

Mtnm

Active Member
When I walk my bike forward the pedals turn with the bike instead of having a free wheel action.

I'm unsure of the cause, but am guessing some type of dirt is in the free-hub.
I have some understanding of how to take apart and clean a free-wheel, but am not sure of the difference in cleaning the free-hub of a NeoJumper.

My thought was to take off the cassette and clean things.
Obviously I've already tried the simple cleaning steps.

Any links or suggestions are much appreciated.

Mike
Colorado, USA
 

Shea N Encinitas

Active Member
Until a proper mechanic shows up; I imagine you will have to go a little deeper than the cassette, just be prepared to capture all the little ball bearings.
 

Chris Nolte

Well-Known Member
It is a pretty standard cassette. You can remove the cog cluster with the proper tools (chain whip and free hub tool) and clean it. Disassembling the cassette is a bit of a more difficult task, so if cleaning it and lubing it doesn't do it you might be a candidate for a warranty replacement. It's most likely some debris stuck in there though.
 

Chris Nolte

Well-Known Member
I posted in the other thread, but so it's here for reference, Park FR-5 is the one. It's standard for the Shimano Cassette. You'll also need a chain whip.
 

Mtnm

Active Member
Thanks Levi.
It does pedal freely backwards.
I did try squirting small amounts of TriFlow between the cassette gears.
Also I wash using one of those brushes which looks like a large tooth brush to get between the gears.

Mike
Colorado USA
 

Levi

New Member
The oil doesn't go between the gears. If you are looking at the cassette from the front it goes just above the spline where a cassette tool goes in. There is a split or a crack between the top part and the middle part inside that crack you put the tri-flow oil in. Hope this helps. Also for more info on cassettes look on Sheldon browns website for more info.
 

Mtnm

Active Member
The oil doesn't go between the gears. If you are looking at the cassette from the front it goes just above the spline where a cassette tool goes in. There is a split or a crack between the top part and the middle part inside that crack you put the tri-flow oil in. Hope this helps. Also for more info on cassettes look on Sheldon browns website for more info.
Thank you, very helpful.
Mike
 

opimax

Well-Known Member
If anybody could post a picture it would help me understand. I went to sheldons site and didn't find it

Thx
 

Levi

New Member
Opimax here is an illustration. I hope this helps
 

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opimax

Well-Known Member
Helps? If the oil saw the picture I am sure it just jump there lol ! About the only thing better, thx much!

Mark