Jump to content
Paddy1000111

Oregon 620 sharpener?

Recommended Posts

So I picked up a Oregon 620. I tried to get the tecomec version as it was cheaper but after 3 weeks of faffing they weren't able to ship it to the UK 🤦🏼. Bit of an odd question on discs. Why does it have the same discs for 1/4-.325-3/8p and then another for 3/8-404? Surely it should be a different disc for each size? 

 

Also realised that even though it's advertised as going to 40 degrees it only goes to 45 which is a little annoying! 

Share this post


Link to post
Share on other sites
7 hours ago, Paddy1000111 said:

So I picked up a Oregon 620. I tried to get the tecomec version as it was cheaper but after 3 weeks of faffing they weren't able to ship it to the UK 🤦🏼. Bit of an odd question on discs. Why does it have the same discs for 1/4-.325-3/8p and then another for 3/8-404? Surely it should be a different disc for each size? 

 

Also realised that even though it's advertised as going to 40 degrees it only goes to 45 which is a little annoying! 

I wondered about this when I got a grinder but when you think about the radius in the gullet does none of the cutting. The side plate and top plate angels are what matter. Suspect the recommendation for a the thicker grinding disc for the larger chains is more to do with them being stronger as  you are removing more metal, Least thats my take on it 

 

  • Like 1

Share this post


Link to post
Share on other sites

Ahh interesting! It just seems odd? Surely if the wheel size is off you can't touch up a chain in the field with a file as the profile isn't right? It explains why a new chain takes a few passes for the file to bed in though! 

 

Also makes me realise I should have used the larger wheel on the .325 chain 🤦🏼

Edited by Paddy1000111

Share this post


Link to post
Share on other sites
6 minutes ago, Paddy1000111 said:

 Surely if the wheel size is off you can't touch up a chain in the field with a file as the profile isn't right?

That is the case to an extent. Better to have a smaller disk as when using the the file it will touch up the cutter from the off but wont if you have used a bigger disk with larger radius than your file size. 

Share this post


Link to post
Share on other sites

Yeah I though theere would be differrent ones for each chain.

 

Not sure which colour wheel is best either suppose the white ones unless the chain is really knackered as will take less off?

Share this post


Link to post
Share on other sites

I think the 4.7mm (large) wheel is about right for .325 as the Stihl file is 4.8mm. it's smaller than a standard .404 file so like you say it will make touch ups easier. 

 

I've just done my milling chains and it seems to leave a nice profile. Barely takes anything off when it's set up right and doesn't leave a bur so all in all I'm quite happy! The 74" skip chain I have clipped a piece of dirt or something so it was nice not to have to mess about filing that out. Just did one side and then reset for the other using a pair of Vernier calipers to make sure the teeth are the same. 

  • Like 2

Share this post


Link to post
Share on other sites
5 hours ago, Paddy1000111 said:

I think the 4.7mm (large) wheel is about right for .325 as the Stihl file is 4.8mm. it's smaller than a standard .404 file so like you say it will make touch ups easier. 

 

I've just done my milling chains and it seems to leave a nice profile. Barely takes anything off when it's set up right and doesn't leave a bur so all in all I'm quite happy! The 74" skip chain I have clipped a piece of dirt or something so it was nice not to have to mess about filing that out. Just did one side and then reset for the other using a pair of Vernier calipers to make sure the teeth are the same. 

Is that set to 0° ?

Share this post


Link to post
Share on other sites
1 hour ago, peatff said:

Is that set to 0° ?

10 degree offset, 10 degree on the angle, 50 degree on the head. It's what the manual says for the 27ra ripper 

  • Thanks 1

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Featured Adverts

  • Tip site reviews

About

Arbtalk.co.uk is a hub for the arboriculture industry in the UK.  
If you're just starting out and you need business, equipment, tech or training support you're in the right place.  If you've done it, made it, got a van load of oily t-shirts and have decided to give something back by sharing your knowledge or wisdom,  then you're welcome too.
If you would like to contribute to making this industry more effective and safe then welcome.
Just like a living tree, it'll always be a work in progress.
Please have a look around, sign up, share and contribute the best you have.

See you inside.

The Arbtalk Team

Follow us

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.