Hi I'm Steve Copnall from Allett Mowers today I'm going to show you how to replace the belts on the
Stirling 43 or 51 cylinder mower. So firstly we're going to use the four millimetre allen
key provided and we're going to remove this side guard which is secured by these three fixings.
So you'll notice we've got the cartridge drive belt and also the rear roller drive belt
so it's good practice just to take a photograph if you can just so you haven't got to try and
memorise the actual routing for the belt so if you've got a photo or even just draw it just to
remember that routing. So to release the tension we basically just release the tensioner clamp
we can then feed that belt off the pulleys and then you'll just need to bring a bit of tension
on just to release the idler tensioner just allowing you to take that belt off
and then to fit the belt we basically just locate that over
so everything just in reverse basically so we'll just lift that tensioner
locate the belt through
and then that's that belt replaced. So now we're going to change the rear roller belt
so to do this we've got the motor shaft which is supported on this bracket here
which is pivoted on this fixing and then also this fixing you'll notice is within the slot
so we need to slacken those two and then we can basically raise and lower this top section on
this bracket. So to do this we need to remove this black casing here and that's using the
four millimetre allen key we can remove these four fixings and then we can remove this tunnel guard.
So using a 10 millimetre spanner
and the four millimetre allen key we can just take the tension off those
so now we've taken the tensioner off that bracket is now lowered
to the bottom of the slot and then we can remove that belt. So to replace
and then we need to put our tension back on to the top section
which underneath the pulley we can basically get a pry bar
which we can position between the two plates
just to apply the tension while we're tensioning the fixings
so then we can screw this fixing back into position
securing the bracket.
Ideally we want five to eight mil deflection on there
so to finish that off now we just need to place the tunnel guard back on and then also the
plastic housing for the battery unit
and then we can reinstate the four fixings.
So that's our belts replaced and the same principle if the belt has stretched at all
and you just want to add more tension again it's just release those two fixings and then use the
pry bar section underneath just to raise that top motor so you can put some tension on there.
Now we're going to reinstate the side guard
we're now ready to mow.