Hi I'm Steve Copnall from Allett Mowers and today I'm going to show you how to remove the cartridge
from the Liberty 30 or the Liberty 35 cylinder mower. So first we're going to remove the side
guard and to do that we need the five millimetre allen key which was provided with the machine.
On here there is four fixings so if we slacken those we can then remove the side guard.
These are captive fixings as well so there's no risk of losing those
when putting the the cover down.
So on the Liberty 30 and 35 there is a cylinder drive belt which we will need to remove before
we can take the cartridge out of the machine. So midway adjuster there is a nylock m8 lock
on there which we need to just slacken with a 13 millimetre spanner. So if we slacken the nylock
i can then move the adjuster within the slot just to take off the tension from the belt
that then allows me just to remove the belt from the top and bottom pulley.
The bottom pulley which is attached to the the cylinder shaft is what drives the the cylinder. I
need to remove that so i can take the cartridge out. There are a couple of ways of doing this
so I can use the five millimetre allen key
and remove each fixing from the pulley or i can use an open end of a spanner,
locate that over the fixings like so and then using a piece of wood or a piece of rubber like
a handle from a hammer position that into the cylinder just to stop it from rotating
and then turn the pulley in a clockwise rotation. Because it's a left-hand thread i can then unscrew
the whole pulley assembly rather than taking that assembly apart
so it makes it a much easier and simpler process and then just remove the piece of wood,
take the spacer off as well
that will need to go back on before the coupling goes back together and then there
are two fixings each side of the cartridge again just using the five millimetre allen key
just keep the spring washer on the
screws.
It's best just to wear gloves as well and when working around the cylinder because the edges can
be sharp. So once you've removed the two screws we can then remove the cartridge from the mower
and then we can interchange that with the scarifier or remove the cartridge for servicing.
So to reinstate our cartridge you'll notice there is a rail where the cartridge sits on like a guide
and then the drive shaft goes through the cutout
on the chassis and then that just slots into position. Secure the cartridge again with the two
screws. Before tightening them just make sure both screws are inserted into the threads first.
We can then put the spacer back onto the drive shaft against the bearing and
then we can thread our assembly back on. So anti-clockwise will put that thread back on.
Again just with our piece of wood if we locate that into the cylinder just to stop that rotating
and then I can use the open ended spanner
just to
tighten that thread up.
I can then position the belt over the top pulley
on the inside of the tensioner pulley and then over the bottom
and using the tensioner i want about 10 millimetres of deflection on the belt
and the midway point and then I can just tighten that m8 fixing up to secure that.
Over time these belts will begin to stretch as well so it's just important just to
check on a monthly basis just the tensions of the belts and then we can make adjustments on
the midway. So now we've fitted the belt and we've tensioned the midway adjuster
we can then reinstate the side panel and we're ready for mowing