A
aurum78
Guest
I just learned to ride my dad's old 24" Schwinn last summer. A couple
days ago, one of the nuts fell off the right crank, and it started
wobbling when I peddled (which is why I noticed). So, I went w/ my dad
to the Schwinn bike store in Boise (they happen to be the only
unicycle.com dealer in the area, so I figured I'd take a look around
while I was at it). We bought a $2.50 hardened steel nut.
We went back home, I put on the nut and tightened it as hard as I could.
I test it out a couple days later, the nut starts to come loose in five
minutes.
So, I try tightening it again. Same thing again. I figured maybe the
crank just wasn't on tight enough, so I used a hammer and lightly tapped
it around the edges some so it could go on a bit farther. Put on the
nut, tightened, and tested. Same result - falls off after about 500 ft
of riding.
I'm not quite sure what to do now, so I'm asking for help from the
knowledgeable people of this forum.
Note, I don't know the difference between cottered and cotter-less
cranks (I happen to have searched a bit on the forum, so I've read the
term - don't know what it means).
I took several pictures. Here they are:
[image: http://coneff.org/PC105132-2.jpg]
^^ The crank w/out the nut on it ^^
[image: http://coneff.org/PC105133-2.jpg]
^^ Crank and the new nut ^^
[image: http://coneff.org/PC105139-2.jpg]
The bare shaft
[image: http://coneff.org/PC105140-2.jpg]
[image: http://coneff.org/PC105141-2.jpg]
[image: http://coneff.org/PC105126-2.jpg]
The other crank (still has the original nut on it)
[image: http://coneff.org/PC105127-2.jpg]
W/ the nut put on (not tightened)
[image: http://coneff.org/PC105128-2.jpg]
A side view
[image: http://coneff.org/PC105130-2.jpg]
The new nut
[image: http://coneff.org/PC105131-2.jpg]
From another view
Thanks!
--
aurum78
------------------------------------------------------------------------
aurum78's Profile: http://www.unicyclist.com/profile/8633
View this thread: http://www.unicyclist.com/thread/36813
days ago, one of the nuts fell off the right crank, and it started
wobbling when I peddled (which is why I noticed). So, I went w/ my dad
to the Schwinn bike store in Boise (they happen to be the only
unicycle.com dealer in the area, so I figured I'd take a look around
while I was at it). We bought a $2.50 hardened steel nut.
We went back home, I put on the nut and tightened it as hard as I could.
I test it out a couple days later, the nut starts to come loose in five
minutes.
So, I try tightening it again. Same thing again. I figured maybe the
crank just wasn't on tight enough, so I used a hammer and lightly tapped
it around the edges some so it could go on a bit farther. Put on the
nut, tightened, and tested. Same result - falls off after about 500 ft
of riding.
I'm not quite sure what to do now, so I'm asking for help from the
knowledgeable people of this forum.
Note, I don't know the difference between cottered and cotter-less
cranks (I happen to have searched a bit on the forum, so I've read the
term - don't know what it means).
I took several pictures. Here they are:
[image: http://coneff.org/PC105132-2.jpg]
^^ The crank w/out the nut on it ^^
[image: http://coneff.org/PC105133-2.jpg]
^^ Crank and the new nut ^^
[image: http://coneff.org/PC105139-2.jpg]
The bare shaft
[image: http://coneff.org/PC105140-2.jpg]
[image: http://coneff.org/PC105141-2.jpg]
[image: http://coneff.org/PC105126-2.jpg]
The other crank (still has the original nut on it)
[image: http://coneff.org/PC105127-2.jpg]
W/ the nut put on (not tightened)
[image: http://coneff.org/PC105128-2.jpg]
A side view
[image: http://coneff.org/PC105130-2.jpg]
The new nut
[image: http://coneff.org/PC105131-2.jpg]
From another view
Thanks!
--
aurum78
------------------------------------------------------------------------
aurum78's Profile: http://www.unicyclist.com/profile/8633
View this thread: http://www.unicyclist.com/thread/36813