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Unfortunately, there is nothing you can do to stop the chainsaw chains from stretching over time.
The tensioner ensures the correct and necessary tension of the timing chain that surrounds the crankshaft sprocket and the camshaft sprocket. It exerts full control, making the chain run smoothly, preventing it from rattling and coming off the sprockets.
Don`t Cut Into Dirt
But when you cut close to the ground, you`re just begging for a quick dip into dirt, rocks and crud. All it takes is a second in the dirt to dull the cutters. In addition to dulling the cutters, dirt also wears out the chain links faster, causing the chain to stretch.
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Lost tension screw on Husqavarna 51. What is size of screw for replacement?
I think its 6.0×1.0 metric
How to replace chain tensioner – Stihl 017 018 Ms170 Ms180 Chainsaw Starter Stbx759
After you take the bare and chain off take the nut off the end of the bolt and unscrew the bolt out of the tensaner till it comes all the way out the do that backwards to put ti back together
The ring in the clutch cover will not fit over the clutch so that it can be tightened down. I used the saw 1 weekend end & it was fine. The next weekend the chain came loose during operation. It somehow would not tighten so decided to disassemble & reassemble just like I had done when it came out of the box with the new chain and bar.
Somehow the tension on the clutch cover ring has rendered it too small to fit over the clutch so cannot reassemble it & tighten nuts. I was told to pull the brake bar back and then it should go on.This came from the distributor I purchased it from. Also called a repair shop and they said the same about pulling the brake bar back. I tried to no avail. Also had a friend measure it and try to no avail.
The ring is the same exact circumfurance as the clutch ring it is trying to fit around. A fraction wider and it would fit on. Don’t know what happened that tensioned it up and can’t reverse it. I think the part is defective i.e. ring assembly inside cover. What is the answer?
This may not be the answer you are looking for but I would get a small file and file the ring just enough to make it fit. I really don’t understand why it got too tight in the first place but you stated that it only needs a fraction wider to work. Use a small file or drill to open the hole to the size you need and start cutting wood again. The Rancher is a great chain saw.
MS310 CHAIN ADJUSTER REPLACMENT
hope this helps
My chain keeps losing tension after a few cuts. Installed new bar and chain, no help. Could it be adjustment screw? Thanx!
Yes.try to put an “precision metal o ring'” on the bolt.
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Cannot tighten the chain bar
Make sure the bar is positioned on the bar adjusting pin before you tighten cover. Adjust tension with bar adjusting screw, then tighten bar bolts.
The chain popped off and I can’t get it to fit back on.
Losen the bar mounting nut, then losen the chain tension adjustment screw until the chain can be reinstalled, then tighten the tension screw until the chain just sags 1/8″ or so at the center of the bar then retighten the bar mounting nut.
I am assembling the chain saw that I bought online. There was some difficulty in taking off the clutch cover. Before I did that, I had disengaged the chain brake. Now I find that I cannot put the cover back on because the chain brake seems to be activated, and the brake is too small to get it around the ring to remount the cover. I cannot move the brake one way or the other to activate the spring-loaded mechanism. Do you have a solution?
Try Look at eReplacementParts.com and the parts diagrams