Jump to content
westphalian

Chain snaps

Recommended Posts

14 hours ago, westphalian said:

turned oil to max, will mill on sunday

fullsizeoutput_15da.jpeg

You might also try engineering cutting oil, it's a water soluble oil for milling and sawing steel. Get a litre from yr friendly  engineering works, mix it to a gallon, with water n use that. The water content will cool the bar way better -but it does make yr clothes stink ! K

  • Like 1

Share this post


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

You might also try engineering cutting oil, it's a water soluble oil for milling and sawing steel. Get a litre from yr friendly  engineering works, mix it to a gallon, with water n use that. The water content will cool the bar way better -but it does make yr clothes stink ! K

I hate the stink of slurry .

Share this post


Link to post
Share on other sites
At what stage is the chain snapping? New, half used, or near the end?

 

Half used. Always start with sharp chain. The chain on the bar hadn’t snapped I’d just be sawing up a load of pine bark planks

Share this post


Link to post
Share on other sites

well another snapped despite on full oil.

been googling.

so is lo pro not suitable for the power of the ms661?

is the few mm a lo pro saves worth it? (that was from a post from Rob on here several years ago)

do i need a specific lo pro sprocket?

 

i have now ran out of tie straps to repair the chains so i'm gonna have to do something

Share this post


Link to post
Share on other sites

I think, if it’s not a 3/8 lopro sprocket, that’s the problem with the chain breaking. 

 

3/8 and 3/8 lopro May look the same but they work/behave differently.  From what I’ve gleaned around the web, the lopro is a slightly bigger sprocket, and some where in USA I read that some guys were turning down 404 sprockets to fit the lopro. 

I’ve also read that using the wrong sprocket is like using a very worn sprocket. 

I cant remember what threads they were.

 

also I’m guessing you got the right bar with the tip sprocket is 3/8 lopro not a std 3/8 ?  If it is wrong then it will sit to high on the tip

  • Like 2

Share this post


Link to post
Share on other sites
What sprocket are you using? Gustharts sold a lad i mill for the wrong 3/8 sprocket for lo pro on 660, which caused premature chain wear
This still
  • Like 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

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.