Question about Greenworks 20012 - Chain Saw

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Greenworks chainsaw chain keeps jumping off sprocket

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  • Iggy Dalrymple Jan 15, 2013

    I now think I'm missing a couple of parts. When I took the chainsaw to a shop to have the chain sharpened, the mechanic said that he thought that was supposed to be a washer and a snap-ring to hold the sprocket in place. He had never worked on a Greeworks saw before but he said other saws have these two parts. Since I've had trouble with the chain jumping off the sprocket since I've 1st used it, I think the saw was sent to me with the 2 parts missing. I'll try to get the company to send the missing parts. Thanks for your help.

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Try adjusting the tension of the chain

Posted on Jan 13, 2013

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1 Answer

My chainsaw starts up perfectly but within 2-3 seconds the guard jumps back & it cuts out. I've checked the tension & it all seems fine. Any ideas? Thanks, Jackie R


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http://www.partsandservice.com/bin/ipl.cgi

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1 Answer

Why doe my sprocket on Husqvarna 455 keep tearing up the drive part of he chain


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Aug 18, 2013 | Husqvarna Chain Saw 20" Bar

1 Answer

I can't get my chaing to stay at a normal tension. it either gets too tight or too loose! is this a common problem? perhaps a defect? or whats the solution


assuming you have the chain adjuster in the bar adjuster hole. This and the bar nuts will normally keep the bar in place and the chain adjusted. However if your drive sprocket on your saw is worn (deep grooves where the chain rides on the sprocket) it will cause the chain to try and climb over one tooth pulling the bar toward the saw loosening the chain. This can also happen if you put a worn chain on a new sprocket. In the end this overtight or loose condition will lead to failure of your sprocket nose bar. One other way can be the chain, the bar and the sprocket are not all the same pitch.

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Brand new RYOBI RCS3535CA 35cc Petrol Chainsaw. Chain came off the guide after only cutting a couple of branches. Refitted the chain but chain doesn't run. The chain is on the drive sprocket. What could be...


With chainsaws once you refit teh chain to the sprocket (it runs one way only) and the guides are sitting in the groove in the bar. The bar needs to be pushed so there is very little flex in the chain and then the nuts that hold the bar on should be tightened. If the chain is loose it will not get driven properly and it will jump off the bar. Also if oil is not lubricating the chain it will heat up quickly, stretch and jump off the bar. If in doubt - take it to your local chainsaw mechanic for checking and a demonstration.

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1 Answer

My Ryobi 40cc chainsaw saw runs strong, but the chain binds and will not turn. The safety break is not engaged and the chain is not tighten to tight. I think it maybe the sprocket but it does not look...


If your chain has recently jumped off the bar while running, your chain may have "burs" on the drive links (part of the chain that rides in the bar groove). These burs will make the chain rub the inside of the rails and thus bind the chain in the groove. You can file these off with a flat file if there aren't very many, but you may need to just replace the chain. You can find files, bars, chains & sprockets for your saw at PartsBuggy.com.

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How do you remove the sprocket and clutch assembly


Article: Fixing a Broken Chainsaw

Having a broken chainsaw is an inconvenience. Having one that works when you need it is important! Chainsaws are useful tools for tree pruning, cutting firewood, and carpentry projects, but are not so useful if not properly maintained. It can also cost a great deal of money to get a broken chainsaw repaired. You can save a lot of time and money by repairing it yourself. For chainsaw repair you will need a blanket or large cloth, a chainsaw tightening tool, files to sharpen the blades, and any necessary replacement parts.

My Chainsaw's Engine Does Not Start

If the engine will start at all, you might have a bad starter switch. Check to see that all connections to the starter switch are secure. Is the power cord cut or broken? Check to make sure that you have a proper power line connection. If all checks out except for the switch, go ahead and replace it. You may want to consider whether you are using the appropriate fuel mixture.

My Chainsaw Smokes

If there is smoke coming from the chain, it could be an indication that there is not enough lubrication. Without the proper lubrication, the chain and chain bar can become seriously damaged. Make sure there is oil in the reservoir. When you start the saw, the automatic oil pump should lubricate the chain and bar. To see if this is a problem, hold the saw tip over a light-colored surface, hit the throttle and look for oil spatters on the chain bar. If you see no oil splatters, turn the saw off. Remove the chain guide bar and see if the oil discharge slots are clogged with sawdust. Clean out the sawdust and restart the saw to check lubrication again.


The Chain Skips or Jumps

If the chain skips or jumps during operation, check the engine drive sprocket to make sure it is not worn. If you have a worn sprocket it will not allow the chain to sit properly. Also, check to make sure the chain tension is set correctly. Setting the chain tension is a part of continuous operation. However, a dull or damaged chain may also cause the skipping and jumping.

My Chainsaw Isn't Cutting Properly

If the saw cuts at the wrong angle or shoots out a lot of sawdust, you probably need to sharpen the chain. A dull chain can be very dangerous. It can cause a kickback or chain jump that might break the chain and release pieces that could harm to the operator. If your chain is very shiny, you need to examine each cutter for damage. Use a file to sharpen the cutters.

The Chain Continues to Move or Stops

If the chain continues to move while the engine idles then you should check to make sure the idle is not set too high. If it stops while cutting, see if the brake is engaged.

My Chainsaw Loses Power

If the saw loses power while operating, check to make sure all electrical connections are secure. Any break in current may cause the saw to decrease in power, stall or shut down altogether.

When maintained, chainsaws are a great asset to any tool collection. Consult your user's manual for questions specific to certain manufacturer types.

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Oct 05, 2010 | Poulan Pro Chain Saw 46cc 20"

1 Answer

Chain Slipping


Your chain would have to be incredibly loose to slip the sprocket. Enough that it would come off the bar before jumping the teeth on the rear sprocket. Highly unlikely.


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1 Answer

The chain on my Remington electric saw keeps jumping the sprocket. Solution? Thanks.


Depending to what model you have, the Sprocket cover tab (located on the round part of the sprocket cover) isn’t inserted into the saw body tab slot. Or your cahin is not tensioned properly. According to the manufacturer... "The adjusting block on the adjusting screw isn’t inserted into the adjusting hole on the guide bar. Reinstall and align the sprocket cover by first removing the sprocket cover from the saw. Turn tensioning screw on the sprocket cover counter-clockwise until it stops. Pull guide bar away from saw body to remove slack from chain. Insert sprocket cover tab into saw body tab slot and lower sprocket cover into guide bar bolt. Finger tighten guide bar nut onto guide bar bolt. Slowly push guide bar toward saw body until adjusting block on the adjusting screw drops into round adjusting hole on the guide bar. Securely tighten guide bar nut after properly tensioning saw chain." If these tips do not work, you may need a new chain. You can order an new chain on-line at www.masterparts.net. I hope this helps you!

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check sprocket isn't worn it may be pulling on chain than over heating bearing. check pitch of chain ,bar , sprocket are the same.

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