This is one of our 6" x 10" Jaw Crushers
I wanted to do a short maintenance and operation video for these
this will be the same for our 6" x 10"
8" x 12" and 10" x 16" jaw crushers
The first thing is going to be how to change the jaw plates
looking down the jaws here, my first step
first step is to take out these two bolts, 1 and 2
which go all the way through the movable jaw
You can see them, they come out the back here
just take off those two nilocks
tap the bolts out
and these two wedges will come out
and that movable jaw will be able to lifted out by hand
once the movable jaw is out
the two cheek plates need to come out
and that is done by
removing
this bolt up under there
easier to see on this side, one on each side
once these bolts are out
the cheek plates will come out
You can stick a pry bar in there and wedge them out
with those D holes there
and once those cheek plates are out
the stationary jaw will be able to be lifted out by hand
The jaw plates are flipable
and they wear
more heavy down on the bottom half than the top half
once they wear out on the bottom half you can flip them over
and once you remove the jaw plates
turn them over to replace them
Put the stationary jaw back in first
Slide down the cheek plates
Drive them down with a big hammer or maul
on the top of both of those before tightening up the bolt
once these are driven down tight
tighten up the bolt on each side
and then put the movable jaw back in
install the two wedges
put the bolts through and tighten up the nilock in the back
as you tighten up the nilock in the back
It's best to tap these wedges and bolt heads with a hammer
and it will help the bolts get tight
tap them, tighten them up in the back and wack them a couple of more times.
it's best to do this with two people so that one guy can bang these and another can tighten them
there are four grease fittings on these machines
two here and two here
and for proper greasing there will jsut be a little tiny bead of grease
coming out between the bearing housing and the shaft
we put some grease in the bearings and as you run them
first half an hour or so, check and make sure there is a bead of grease there and if not
add five more pumps of grease
and run it for another half and hour so everything gets nice and warm here
so that the grease can come out and make that seal
grease doesn't need to be flying off the shaft
just a small bead of grease around the
bearing housing and the shaft to keep dust and particulates out of the bearings
Too adjust the jaw gap
there is two adjustments to be made
this is the vertical threaded rod
this is the spring tensioner rod
to tighten the jaw plates
you take this vertical threaded rod
and tighten the bolt so that the rod will come up
that pulls the wedge
pulls this wedge up that pushes this
toggle really forward
pushes the toggle plate forward and closes the jaw gap
and as your doing that
You may need to tap this with a hammer lightly and you tighten the jaw plates
as you tighten or before you tighten the jaw plates
you can loosen this
tension-er spring
and that runs all the way through and grabs the back of the jaw plate
so that the jaw plate isn't flopping around operation
so this needs to be snung
but not to tight so that when the jaw plates closes it collapses all the way
it doesn't damage the spring or the rod
and not loose that it's clanking around
and to open the jaw plates its the reverse, you drop this rod down
this whole mechanism slides back opening the jaws
and then you will need to tighten this up
to keep proper tension on the spring
After any adjustment is made to the jaws
either replacing them or tightening or loosening them
it's important to
take off one of the guards and rotate the jaw by hand a few times
to make that these teeth
mesh and don't hit or bind
because if the jaw crusher is started and the teeth don't mesh
you may damage the crusher
or the jaw plates
Other things that need to be checked on this machine are the
belts especially after the first couple hours of operation
the belt tension may
need to be changed
the belts will stretch initially just a small amount
to tighten the belts you can loosen the motor bolts
and using these adjustment screws
you can pull the motor back which increases tension on the belt
another thing to check
after your first couple of hours of operation is go through and check the bolts
and nuts for tightness, especially these two on the jaw plates
and these two on the cheek plates
it may take a little while for those
bolts to get nice and tight when it's operating
because there is a lot of force going on there
and these things need to be nice and tight
the rotation of the jaw crusher wheels
it's clearing marked on the side of the guards
if you just bought a jaw crusher with no frame or motor you probably didn't get guards with it
if your standing at the jaw crusher
the fly wheels will be rolling towards you
the jaw will be going up and down force feeding the jaw crusher
if it is running backwards
pushing the material back up and out
and the jaw crusher won't be nearly as effective
We have electric
gas and diesel options for these smaller jaw crushers
if you have any questions don't hesitate to give us a call or email us anytime
all of which is available in the description below
Thanks for watching and enjoy your machine