Timberwolf 150 anvil gap

[Charles Hey Arborist]

Putting my TW150 back together, is the anvil gap adjustable or is it set? Seems a little big.

 

Someone told me the 20thou shims under the 2small bearings change the anvil gap but I don't see how?

 

Any help appreciated.

 

Charlie.

[swinny]

pass....

 

I hope its set as i put mine back together last night lol

[Timberwolf Official]

Hello Charley

 

The shims fit between the nose shaft and the inner race of the closest bearing, adding shims will move the rotor postion (with blade attached) away from the small vertical anvil which is fixed to the front plate by 2 x countersunk allen screws. Thus adding 1 shim will increase the blade to anvil gap by (20thou) .5mm. Blade to anvil gap on a TW150 should be 2.5-3mm.

Hope this helps

[Charles Hey Arborist]

Thank you.

Doesn't quite make sense to me! Just holds out the centre of the flywheel casing?

[Timberwolf Official]

Hi Charley,

 

Adding shims does not hold out the centre of the flywheel casing, it alters the position of the rotor in relationship to the front plate. You haven't said the age of your machine but if its an early one you may have to reset the rear bearing too. This is why it is so important for a Timberwolf trained engineer to perform these tasks. Incorrect bearing fitment will reduce the life of the bearings. :-)

[Charles Hey Arborist]

Thank you.

 

It's a 2006.

 

To me, the position of the flywheel looks set by the large single bearing, and it's housing? Just don't understand how the shims on the 2 bearing side alter the position of the flywheel.