timberwolf tw150 service & blade change

[htb]

45ft/lbs torque on the blade  bolts

[GA Groundcare]

12 hours ago, Reeves4Trees said:

Hello there,

With regards to changing timberwoolf 150 blades, what size tourque wrench would I need to use?

3/8" one is best on those machines. With a 1/2" one and the torx socket fitted you'll need to remove the feed roller motor as not quite the space.

 

Spray the bolt heads with WD40 and spend plenty of time picking the crud out of it prior trying to undo the bolts. most of the time they come out, we have had a few that need hammer and punch, this is only usually when the person previous has over tightened and not used copper slip. Don't use locktite either

[woody paul]

4 hours ago, GA Groundcare said:

3/8" one is best on those machines. With a 1/2" one and the torx socket fitted you'll need to remove the feed roller motor as not quite the space.

 

Spray the bolt heads with WD40 and spend plenty of time picking the crud out of it prior trying to undo the bolts. most of the time they come out, we have had a few that need hammer and punch, this is only usually when the person previous has over tightened and not used copper slip. Don't use locktite either

Why do you need to remove feed roller if you use 1/2'' drive wrench, just lift drive motor up high to get access.

Have never used torque wrench on my chippers and never had a problem. Copper slip is the way to stop them sticking and never be in a rush to do them clean them out the best you can then put torx bit in and then remove it and have another go with pick amazing how much more comes out.

[GA Groundcare]

Only the motor which is just two allen key bolts, we cant get our 1/2" torque wrench in with the motor on... But if purchasing a specific torque wrench for TW150 blades at 61nm I would choose 3/8 wrench with a 3/8 driven torx bit so it'll slip down the right hand side of the motor without any trouble. 

 

Surely removing the feed roller springs, lifting the motor / feed roller up, finding a piece of material to jam it open is a lot more involved than unbolting the motor itself?!

With a mechanical feel and understanding you can pretty much get away without torqueing anything but retightening to factory settings you can be confident its correct  

[Mick Dempsey]

Lifting off the springs, and lifting the feed roller up is easy. You do have to be right above the roller box to get a straight lift though.

 

I must have changed the blades more than 150 times, I’ve done that every time.

 

I never torqued them either, clean them up nice and put them back tight.

Edited March 21, 2018 by Mick Dempsey

[Alex O]

I always change the blade bolts every other time also

[treevolution]

How do you stop the fly wheel from moving when undoing the bolts.

 

Thanks

[Carl1991]

I use a bar against the fins and housing. Super clean the bolt heads out! Think they are t50

[Alex O]

How do you stop the fly wheel from moving when undoing the bolts.
 
Thanks

Jam your spanner or socket in it, I tend to use the extension bar from the socket set

[Al Cormack]

How do you stop the fly wheel from moving when undoing the bolts.
 
Thanks

Mattock or splitting maul handle works well too. Or if it's at your yard a bit of 4x4 timber cut to 2-3ft long jams it well.