McCulloch Chain Saws

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Oh! I'm so happy. I was hoping it was an SP81. Thanks. I have some pictures, but I have to shrink them before posting. We are forecast to get snow tonight, and I am in a panic, because this was the moment the starter solenoid on my ATV powered snowplow, decided to fail on me.
The plow, is a new experience for me, and I need it because I am getting a little old to risk hand shoveling snow on my long, steep driveway. It doesn't snow here often, but when it does, think two feet of wet, sloppy crud.
Bob
 
Oh! I'm so happy. I was hoping it was an SP81. Thanks. I have some pictures, but I have to shrink them before posting. We are forecast to get snow tonight, and I am in a panic, because this was the moment the starter solenoid on my ATV powered snowplow, decided to fail on me.
The plow, is a new experience for me, and I need it because I am getting a little old to risk hand shoveling snow on my long, steep driveway. It doesn't snow here often, but when it does, think two feet of wet, sloppy crud.
Bob
If its like the old ford post style solenoid, you can still get one at a local auto parts store .
 
Using a smaller than "recommended" file will produce a chain that cuts faster, but will not hold an edge as long.

Conversely, using a larger file or the same size file all the way to the end of the tooth will produce an edge that lasts longer but won't cut quite as fast.

Mark
 
Regardless of file size, correct hand filing technique is required for a chain to cut anything except maybe the operator -- if hand filing of course. File jigs go a long way in keeping an acceptable cutting angle on the cutter when using a correct or smaller sized file. Using a smaller sized file without one usually results in less than desirable performance for an inexperienced hand filer.

Too large a file under any circumstances may be great at hogging out a poorly maintained gullet, but will result in cutter back slope and not much cutting action at all. Same goes for a grinding wheel toward the end of a cutter's usable life unless the operator grinds into the tie strap to get any type of decent angle on the cutter. ((You'd be amazed at how many guys with grinders actually do that exact thing instead of just switching to an 1/8" wheel.)

Then there are the rakers...

..., and lots of other threads on the subject.

Point is, too large a file may as well be a rock or piece of chain link fence when it comes to "sharpening" a chain.

Too small a file will result in a nice sharp hook with no support to maintain an edge that will dull very rapidly as a result.

Chain manufacturers recommend file and grinding sizes and specs for a reason. You're usually pretty safe following those if you're not already an experienced filer or grinder.
 
Regardless of file size, correct hand filing technique is required for a chain to cut anything except maybe the operator -- if hand filing of course. File jigs go a long way in keeping an acceptable cutting angle on the cutter when using a correct or smaller sized file. Using a smaller sized file without one usually results in less than desirable performance for an inexperienced hand filer.

Too large a file under any circumstances may be great at hogging out a poorly maintained gullet, but will result in cutter back slope and not much cutting action at all. Same goes for a grinding wheel toward the end of a cutter's usable life unless the operator grinds into the tie strap to get any type of decent angle on the cutter. ((You'd be amazed at how many guys with grinders actually do that exact thing instead of just switching to an 1/8" wheel.)

Then there are the rakers...

..., and lots of other threads on the subject.

Point is, too large a file may as well be a rock or piece of chain link fence when it comes to "sharpening" a chain.

Too small a file will result in a nice sharp hook with no support to maintain an edge that will dull very rapidly as a result.

Chain manufacturers recommend file and grinding sizes and specs for a reason. You're usually pretty safe following those if you're not already an experienced filer or grinder.

I use a 1/4" file on my .404 because I'm a bad person.
 
7/32" would make you a better person. LOL
I've played with alot of .404 at this point and some does have a better fit with 7/32nd file ,but most cutters will get a gullet shelf with that file . It's definitely not a one size fits all because the old stihl semi chisel .404 is definitely smaller than an Oregon semi chisel.
 
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