Oregon 520-120 - MyTractorForum.com - The Friendliest Tractor Forum and Best Place for Tractor Information
 
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post #1 of 4 Old 06-17-2019, 07:18 PM Thread Starter
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Oregon 520-120

I purchased a 520-120 the other week from Ebay.
It came pretty fast ( a couple or three days) It was packaged pretty good.
Followed the assembly instructions, went together pretty quick and easy.
I am pretty pleased with the purchase.

Sharpened a half dozen or more chains with it, tried out two of them.
They cut much better than I could ever get with my files or the Harbor freight grinder.

I know...a lot of guys are great with a file...but NOT ME.

I still have a learning curve to go through, and still experimenting with different size wheels for .325 chain.
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post #2 of 4 Old 06-18-2019, 07:54 AM
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Re: Oregon 520-120

Here, this will give you something to read:

Chainsaw grinder questions, tips, tricks, and pics!!!! | Outdoor Power Equipment Forum


I just looked at the Oregon web site. The wheel for you grinder is for .325, 3/8ths and .404???? My grinders have 2 sizes 1/8" and 3/16ths. I like the resinoid wheels better than the vitrified, they are dustier and wear faster but don't heat up the cutter like the pink wheels do.

https://www.baileysonline.com/molema...ol-a18728.html


Grinding Wheel Recommendations
1/4" Pitch Chainsaw Chain 1/8" wheel
.325" Pitch Chainsaw Chain 1/8" wheel
3/8" Pitch Low Profile Chainsaw Chain 1/8" wheel
3/8" Pitch Standard Chainsaw Chain 3/16" wheel
.404" Pitch Chainsaw Chain 3/16" wheel
.404" Pitch Harvester Chain 3/16" wheel
3/4" Pitch Harvester Chain 5/16" wheel
Chain Depth Guage Rakers 1/4" wheel



The wheel needs to fit the gullet of the chain just like a file. Hand filers who are adept, will pick up grinders quickly. There is a learning curve. Get a progressive depth gauge tool too. You'll need two, one for .325 and 3/8ths.

https://www.baileysonline.com/husqva...-69-81-0p.html

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post #3 of 4 Old 06-19-2019, 08:27 PM Thread Starter
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Re: Oregon 520-120

That thread at OPE forums, was the deciding factor for purchasing the 520.
(I read that thread a couple times)

The grinder came with 3 wheels 1/8...3/16..and 5/16

The first couple of .325 chains I used the 3/16 wheel (that's what it said in the manual) I mounted and used those on the last tree I took down (2 different saws)
I've done a couple .325 chains with the 1/8 wheel, but have not tested them yet.

I have a couple of those Husqvarna depth gauges.

I'll have to give those resinoid wheels a try.
Do you use a different dressing brick for resinoid wheels?

Hey, Thanks for the links.

Massey GC1710
Cub Cadet GT2542
Cub Cadet LT1320
Scag Liberty Z

Echo CS-600P
Dolmar 5100s
Dolmar PS-421
Stihl MS-270
Stihl MS-180C
Stihl MS-171
Homelite 330
Sears 358.355061
Echo PPT-280

MacKissic 12PT1100
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post #4 of 4 Old 06-21-2019, 07:28 AM
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Re: Oregon 520-120

Quote:
Originally Posted by Rocko View Post
I'll have to give those resinoid wheels a try.
Do you use a different dressing brick for resinoid wheels?

Hey, Thanks for the links.
The dressing brick that came with your machine will be fine.

I don't use dressing bricks, I use an industrial diamond dresser made for grinding wheels. It takes off very little and actually fractures the grit rather than tearing it out. The finish is much better after using the diamond.

John Deere 2305, 62" deck, &47" snowblower.

JD X758 60" HC deck

Simplicity Conquest, 50" w/turbo bagger

Husqvarna , OE Tree Monkeyed 346XP, 346XP ported, 357XP x 2, 562XPG, 372XPG ported, 288XP Lite ported, 395XP
Dolmar 7900
Jonsered 2159 ported
Echo CS303T
Echo PPT 266
Stihl 028 super, rebuilt and ported
Echo PPT-266 pole saw
Iron & Oak Commercial w/ log lift, hydro 4 way
Silvey 510
Oregon 511AX
Nielsen 100B for rakers
F250 8' box, 18' trailer w/5200 axels
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