Correct my sharpening!

[ConservationNation]

I've been using a Husqvarna roller sharpener, and my chain doesn't look right to me. I feel like I'm cutting too high and not leaving enough "lip" on the front part of the tooth. Is this true, and how can I correct it? Thanks.

 

[adamrjones77]

Those roller sharpeners are designed to be used with specific chains. It should say on the front side of the roller which pitch it fits. If your chain doesn't match, you're going to take off the "lip" because the roller guide isn't going to seat on the chain properly.

Sent from my SM-G920V using Tapatalk

 

[HarleyT]

Here is a new chain.

 

[Boogedy_Man]

That should be the size for a 3/8 chain....what size is yours? Looks 3/8 to me, unless you have tiny hands.

I have one of those buy I only use it for depth gauge filing.

That said, I think your gullet is not deep enough. You have darn near a 90 degree angle on the cutting edge - the tooth can't cut, only scrape. I'd freehand a few trying to get the file deeper and developing more hook.

I can't imagine that the guide caused this...but don't know for sure. Are you certain the file diameter is correct??

 

[HarleyT]

That should be the size for a 3/8 chain....what size is yours? Looks 3/8 to me, unless you have tiny hands.

I have one of those buy I only use it for depth gauge filing.

That said, I think your gullet is not deep enough. You have darn near a 90 degree angle on the cutting edge - the tooth can't cut, only scrape. I'd freehand a few trying to get the file deeper and developing more hook.

I can't imagine that the guide caused this...but don't know for sure. Are you certain the file diameter is correct??

He has Trump sized hands!!!

 

[HarleyT]

He could use some moisturizer though....

 

[Boogedy_Man]

LMAO....

 

[HarleyT]

Put the file in the chain gullet and snap a pic.

 

[ConservationNation]

That should be the size for a 3/8 chain....what size is yours? Looks 3/8 to me, unless you have tiny hands.

I have one of those buy I only use it for depth gauge filing.

That said, I think your gullet is not deep enough. You have darn near a 90 degree angle on the cutting edge - the tooth can't cut, only scrape. I'd freehand a few trying to get the file deeper and developing more hook.

I can't imagine that the guide caused this...but don't know for sure. Are you certain the file diameter is correct??

Chain is 3/8, file is 7/32. Stihl yellow. I seat the guide firmly on the chain, and try to make contact with both rollers when I make my stroke.

 

[HarleyT]

 

[Boogedy_Man]

I use a 7/32 file on all my 3/8 chains....but have no experience with Stihl 3/8...

That said, Stihl calls for a 13/64 file on 3/8 chain, which is smaller than what you are using.

 

[Boogedy_Man]

I'd guess one of these three...(1) Guide is sitting too high for some reason, (2) You're not staying on top of the rollers, or (3) The file is too big.

 

[Gypo Logger]

Cutters look ok from here, but you will need to free hand file the gullets as the cutters are filed back. Going 100% freehand is much faster once you learn.

 

[ConservationNation]

Put the file in the chain gullet and snap a pic.

I'll be sure to buy some lotion next time I'm out...

 

[ConservationNation]

I'd guess one of these three...(1) Guide is sitting too high for some reason, (2) You're not staying on top of the rollers, or (3) The file is too big.

The file being too big wouldn't surprise me. I guess I didn't think about it, as my dealer recommend that roller/file combo. Is 7/32 fine for Oregon 3/8 chain?

 

[Boogedy_Man]

I use a 7/32 file on both Oregon and Carlton chains and do all free hand.

Stihl and Pfred both recommend 13/64 for Stihl 3/8 chain....not sure how many people do that in practice.

 

[Deleted member 149229]

My Echo CS-400's use S62 Oregon chain, a low kickback 3/8, .050 chain. They take a 5/32" file.

 

[Boogedy_Man]

That's a 3/8 low pro chain....totally different animal.

 

[Philbert]

Always hard to judge from a distance. Couple of thoughts from your photos:

- The Husqvarna roller guides are designed for Husqvarna chain. They work with a lot of Oregon chains (since they used to make all Husky chains), but may not seat exactly right on what appears to be STIHL (?) chain.

- Different file guides basically do the same thing, but they don't all do it exactly the same. If you are just switching over to a new file guide, or if this was factory new chain, it may take a few extra strokes to 'seat' the file in the new positions, and create the tooth profile.

- It looks like the file is sharpening the top plate cutting edge, and the upper portion of the side plate cutting edge - these are the 'business' parts of the cutter. You may have to go back and clean out / reshape the gullet free hand to get the finished hook profile you see on new chain. like in @HarleyT 's photo.

Philbert

 

[Little Al]

If you are using a Husky guide on a Stihl chain make sure the guide sits to the end of the slot on the chain I have had Stihl std 3/8chains that the side plates etc were to thick for the tool to fit fully down a couple of swipes in the slot with a thin flat file cured the problem