Dixie Chicks

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Hey I fixed moms Chainsaw yesterday
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Story is followed by a question for chainsaw users

When we were trimming the Mulberry tree the other day the chainsaw chain came off its track. Work stopped then and we were about 99 percent done. So I called it a day. I have never operated a chainsaw before and still haven't. But when I saw Miguel putting it back in its box I saw a slot in that bar that holds the chain... I immediately knew that was to allow for adjustment. I told mom I could fix it when she called and yelled at me mad.... I got mad back and told her I would buy her a new chainsaw... It was ugly.

Feathers smoothed down the next day and she apologized. That was Saturday. So Sunday she calls and says "When are you coming over to fix the chain saw" meaning she wants me to come over NOW. So I said "I guess I am coming over Now"

Apparently The fellow shes been trying to get to work around her house and not showing up finally showed up on Sunday. She had asked him to fix the Chainsaw.... He had fumbled with it for quite some time and decided he couldn't so he left it laying on a work table completely disassembled....

So I get there I didn't even tell her I was there. I had no instructions and the whole thing was all apart... Pretty simple design really. The chain orientation was marked two places on one that bar thing and one on the saw chassis. (just looked it up it IS called a bar) I had no idea there were sprockets in the end of the bar.... Very interesting. I understand sprockets...

Then I just tried putting it all together to see what it was that Terry couldn't figure out. Ah found the adjustment screw.... tried turning it but it kept backing out the hole... BAD design on the part of a cheep chainsaw.... There should have been a keeper for that screw to keep it from coming out.... I don't know chainsaws but I do know mechanisms.

there were three phillips head screws fastening the adjustment screw down with a plate. That plate had some punched features that followed the slot on the bar to keep the bar from rotating. I took those screws out and removed the plate. The Adjustment screw was now free to come out. I pulled it out and hand turned the adjustment pin till it was at the loosest setting. And reinserted the adjustment screw and covered it with the cover and reinstalled the phillips screws. Only one was into metal the other two were screws for plastic.

Everything finger tight with one more turn to snug. I know plastics.... and what those screws are capable of. The bar went on perfectly so did the chain... of course the chain was hanging but I couldn't adjust the tension till I fully assembled the housing. One screw.... and a nut fastened down with its own wrench.... finger tight then a good snug up with the wrench.

Then the acid test I started tightening the tension.... and was very happy to watch the chain lift up into its groove on the bottom of the bar..... YAY. I snugged it up but didn't take out all of the play. I think the chain moves about a sixteenth of an inch when pressed up.... Which is about the width of a semi sharp pencil tip.

OK Now here is the question for you Chainsaw users. Its a fourteen inch electric chainsaw. How tight should that chain be?

deb
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You should beable to pull the chain up just a little and freely turn the chain, if it is too tight it will wear on the tip, sprocket and bar and stretch the chain out prematurely. Experience is the only way to know how tight. I've had tight chains fall off just from having sticks hit it just right when cutting tree tops and brush. I don't have any experience with electric chainsaws but I think they are basically the same as far as the bar and chain go. The chain will get hot and stretch out if the bar oiler isn't working properly. I always clean my bar and the oiler hole in the bar every few sharpenings, I hand sharpen them myself.
 

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