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bjbj What I ve got here is a skateboard truck that is completely taken apart and I ve got
some new parts right here that I m going to replace some old ones with. Now, what happened
to this truck, the kingpin broke and I ve got to replace it with a new one. Now, the
kingpin is the big bolt that goes through the baseplate and it holds the whole thing
together as one unit. Now, what I m also going to do is replace the bushings. The bushings
can sometimes be the cause of breaking the kingpin because they do get old, the oil evaporates
out of them and they can crack. Now, the color is not just for looks it also determines the
bushing s durometer. Now you want to make sure you match the durometer with your other
truck that s still on your board, because what s going to happen if you don t is you
could end up with a truck that s too hard or too soft and your board is going to be
lopsided. So, what I m going to do now is show you how I m going to take it out. This
kingpin broke flush. If yours didn t, file around the edges of the kingpin, because any
little shard is going to make it difficult to hammer out. I m going to use my new kingpin
to hammer out the old one, and I m going to use my shoe to hold the baseplate in place.
What I ve got to do is line up the new kingpin right on top of the old one and just start
hammering really hard, but I m only going to get the kingpin out about halfway because
the bottom of it is going to hit the ground. If you re going to do this, make sure you
re right on top of that kingpin when you re hammering and that you re also at the right
angle or you re going to ruin the threads of the new kingpin. Now you can see how much
of the kingpin I ve got hammered out and it s about a third of the way and you can see
what the other side looks like. From the side, you can see that the kingpin is already sticking
out a little bit at the bottom of the baseplate. Now, I m going to hammer in the rest of the
kingpin out on the grass. You can start on the grass if you want to, but there s just
not enough resistance because the grass is too soft, but since I ve already got it started
on the ground, it s going to be a lot easier to hammer out on the grass and you can see
that when I was hammering, it was a lot easier and it just popped out. Now that I got that
broken kingpin out of my baseplate I can now stick in a new kingpin. Now, newer types of
trucks require newer types of kingpins and the newer ones have the rounded ends and they
have the splines which are the raised edges and grooves on the end of it. Now, you also
find the splines inside the baseplate. What you ve got to do is line up these splines
by slipping in the kingpin and just spinning the kingpin until it lines up with those grooves
and there we go just give it a little push with your thumb to help it just kind of get
into place there. Now, if you don t line up the splines, you re going to be hammering
this kingpin in for days, so really make sure that you get them lined up right. Now, for
older types of trucks, they have the hexagon shaped-end kingpin. They re a lot easier to
get in, and all you would have to do for the older types of trucks is just put the baseplate
between two two-by-fours, maybe take a new kingpin or take your old one and just start
to hammer it in. Now, that works great for the older ones, but unfortunately for these
newer ones, they require you to hammer as hard as you can and it takes a lot of work.
What can happen with all that hammering and all that pressure is the baseplate can crack
or the hardware goes in and it can also crack in the center. So what you want to do for
these newer ones if you want to put all the pressure for when this thing is going in around
the kingpin and just on the really heavy part of the baseplate. So, the next best thing
is to take a big socket, now a long one, and just kind of make sure before you do this
that it s going to go down all the way. So, I ve got a long enough one here, I ll slip
it in there, and since I ve got a whole set, I ve got a smaller socket here that s perfect
size and I can just start hammering it down. As you can see, I duct-taped the socket that
has the kingpin inside. If you need to, you can duct-tape another socket on the other
side which is the one you re going to be hammering on just to hold everything in place as you
re hammering. I put a little piece of duct-tape on the ground to keep the whole thing from
slipping. Once I get a good hold of everything I can start hammering away and it looks like it s going down just fine!
Yup, looking pretty good. Just double-check to make sure that it s in all the way. Yup,
that one looks perfect! As you can see, hammering in that new kingpin wasn t that hard. Now
I have a quick question for you: how many bushings are in one truck? I wonder how many
of you said two. There are actually three. Most people always forget the small pivot-cup
bushing that s inside the base-plate. Now, that can be the cause of the kingpin actually
breaking in the first place. They wear down; they break down, so it s a good idea just
to replace everything and so now let s go ahead and put it back together. So we ll start
with the big washer and we ll stick the big bushing in, take out hanger, stick it on,
now we ll stick on the small bushing with the small side up now the small washers, before
I put them on, I want to point out that sometimes these can get dented in pretty good if you
like your trucks really tight, and sometimes they could actually completely flip over (they
ve got a little bit of a lip there, sometimes they ll totally flip.) So, if you ve got one
that s dented in pretty good, it s a good idea just to go ahead and replace it, it s
not that much. So, I ll just go and now stick on my kingpin nut, tighten that on there a
little bit. Now, all I ve got to do is tighten it down all the way and match it up with my
other truck and I can go skate! gd@N [Content_Types].xml _rels/.rels theme/theme/themeManager.xml sQ}#
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