72v vs. 72L?

[rebocardo]

For my 28 inch bar I ordered low kick back chains. I thought 72v, .50 gauge, 3/8, round chisel.  So, I sharpened with a 7/32 and did the angle at 30 degrees. Like it said on the Oregon (blue) package. I checked my Bailey's invoice and it does say 72v.

It cuts lousy cross cut, but, with the grain it cuts fairly well and throws out long curls.

On the package I just checked it says 72L 93L in red marker, but the package is I think 72D? and the invoice says 72v.

Here is my chain


From the Oregon site here is 72 something


My chain has the 25 on the cutters which I now assume means the angle, it has the little oil dams running horizontal on the links, and it says 72 on the bottom.

It really looks like 72LG instead of 72V, what do you think?

[tony_marks]

  theres so many chains is hard to say.. but i dont think thats a low kick back chain.. cant tell for sure but looks like it mite be semi chisel. round instead of  90 degree turn on the cutter..
  also if it is the oregon chain pictured.. the cutter looks to be pulled back enough now to give the raker[depth gauge ] a little attention.. the 25 indicates that the raker needs to be. 025 lower than the cutters edge.  best done by using an depth gauge plate.
  good luck..

[jokers]

Hi Rebocardo,

Tony is right of course about the 25 being the recommended depth gauge clearance.

That is not a Vanguard chain in your picture, notice that your depth gauges are not rounded over, simply straight up.

I`m going to say that from looking at your chain, you are holding your file too high and not getting the inside of the topplate sharp. Your side plate is so straight up that it almost looks as if it recedes at the working corner of the tooth with it`s outside to us. On round chisel you should have a sideplate angle of 60° and the resulting profile will show some sideplate hook.

Russ

[jokers]

BTW, I`d say that you are right, 72LG.

Russ

[oldsaw-addict]

Yes the file you are using is being held too high, I would advise buying a file with a file holder that holds the file at just the right height, and I would also suggest you do give those depth gauges some love, and an Oregon 72D is a round chisel chain, but if I remember correctly 72D is a vangaurd style chain, meaning that it has a wider and longer depth gauge that is set on a 10 - 15 degree downward angle. I have a 72D sawchain here that I use on my saws as a spare. but PLEASE for your own safety, get a file holder to sharpen with.

[CWS]

Oldsaw,

I'm not sure, but isn't the DP, or DG, a semi-chisel? I have a loop of 73DG around here somewhere..........
I think the DP replaced the DG, and added safety bumper links.

Scott

[Kevin]

DP has the bumper drivers.
Both are round cornered semi chisel.

[rebocardo]

I started cutting with the resharpen chains, but, they cut so poorly I stopped using them.

I know using the dremel attachment I probably messed the chains up. The box the chains came in said to use a 30 degree angle with it level (0 degree). I am going to buy a guide plate from Baileys and redo it according to the 72LG specs on the Oregon site.

For me hand filing takes a lot lot lot lot longer, but, I think it ends up sharper than using a stone, at least with these cheap pink colored stones for the dremel.

[John_Boisselier]

You've got too little hook on your teeth to take a decent bite.  Drop down into the tooth toward the chain links another .020"-.030".  Just enough to get the same hook as in the oregon photo ( too much and it will grab and possibly chip the cutting surface off). See how that cuts and if the chips are very thin, drop your depth gauges a stroke or two.

[tony_marks]

  no offence meant here ,,but are u sure u know what we talkin ,,when we say depth gauge ,raker etc..your cutters have been worked on pretty good and it doesnt look like the depths have been touched .. again no offense but u talked about 30 degree and such ,but my impression is u are talkin file angle.. different than depth gauge adjustment.. good luck.. and if im rite ,,dont over do it better less than to much.. thats the next misstake i made..

[Oregon_Rob]

Start with a new, sharp file and a decent file and you should have it back in shape PDQ.
One of the best things i did to improve my fileing was to use my bench vise to hold the bar/saw nice and solid while i filed.
i'm a full fledged novice, but my chains cut well. 8)

Here is the type of guide I use. It's only about $7-8 and they have them at Home Depot

http://www.lawnandgardenparts.com/fileguidesets/

[Kevin]

LG is round ground square corner chisel chain.
The top plate is 25o and the angle for side plate hook is 10o.
The file diameter is 7/32" and the raker depth is .025".
Any changes will affect how this chain performs.