chainsaw chain comes off every five minutes

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  • Problem
  • Updated 2 weeks ago
  • Solved
It's brand new, I was able to use it the first time for about 2 hours before the chain popped off. Now a week later, the chain only stays on for a short period of time. Can I use this chainsaw in the wet, on wet wood? It has oil, and I have the chain tensioned. But maybe too tight?
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John McDonald

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Posted 3 years ago

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Brave416

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Mine will only cut one tree or limb and sometimes will not finish that limb or tree. Impossible to do any work. Tightened it loose and tight but it always comes off at the back on the little power rotor. Tried different angles for the chain and that does not work either. Flaw in the design of the back rotor so no way to keep the chain on.
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Jacob

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Official Response
Call ego. They will fix it. Seems odd. Thin kerf blades cannot take as much side force so if your not cutting straight then problems can happen. Make sure your keeping the bar from bowing like a bow (hence bowing)
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LoneWolf04

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I'm having the same issue. Not sure if maybe the chain tension is backing off? I can't say I'm too thrilled with the plastic tensioner that holds the bar in place or the fact it only gets fastened with a large plastic knob. I know they promote tool less but most saws there are nuts you have to tighten to hold this fastener in place.
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Emil Dahlberg

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Mine is missing. I got 2 emails from Ego. I talked with no one, but their message said I had talked with them. The emails said my case was closed! I have a chainsaw that doesn’t work and the stores in my area(Homedepot) do not have the saw I purchased!
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Michael G

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Emil - I just looked and my saw does have the round plate and snap ring. And yes this is probably your issue.
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szwoopp, Champion

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Emil - if you had the saw less than 90 days you should be able to return it to HD.

If longer than 90 days then contact Ego customer service.  The phone line is the best way.  Call first thing in the morning when they open.
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Emil Dahlberg

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The return option is a great one, however no HD within 100 miles has a replacement in stock. I did the call in yesterday and did the push “1” now for call back. No one called back. Yet I received two emails saying that I had talked with someone and my case was closed!  It is such a simple fix, if I had the part in hand I would have it fixed in 30 seconds. I may just drive the 80miles(round trip) and return it and get a Stihl from Ace down the street from me if I don’t get thru to a real person this morning(on hold now)...  Thanks for the feedback Champ!
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szwoopp, Champion

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Order a new one on line to be shipped to your house or the HD store.
Return the broken saw for a refund.

No need for the store to have it "in stock"
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(a)Typical Engineer

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Pretty much every single time I've thrown a chain is because it was too loose.  I was probably also torquing/twisting the bar, which is not proper technique.  An overly tightened chain will just add more stress and wear to the bar, chain and sprockets; as well as waste precious energy.

Since electric CS (chainsaws) have 0.043" vs. 0.050" (or larger 0.063") chains, it is not unreasonable that the chain will stretch sooner, therefore, checking and adjusting chain tension is more important on the narrower kerf chain systems.  With the narrow chain comes the narrow bar, which is going to be easier to twist/bend; which makes proper chainsaw technique important as well.

When comparing gas and electric, you are gaining all the benefits (no pre-mix, less noise, etc.) but there is an associated cost (check adjust chain more frequently, pay more attention to operator technique, etc). 
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John McDonald

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I haven't replied since my first post on this thread. Dry weather did the trick and I was able to finish the job flawlessly. I also noticed that it doesn't like small branches in the way when you are trying to cut a main branch. And like the above poster, technique is important too. I'll keep it around- I was the only one on my street that didn't call a tree service to clear fallen trees last winter; I had me a chain saw and a u-haul :) As soon as it dried out, that is...
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LoneWolf04

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Curious as well. I don't remember a keeper on the sprocket. I may have to pull the manual and look into it closer.
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Michael G

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I may have to call CS myself. I've used the saw for maybe ten cuts and I was cutting down the stump for an 8" diameter blue spruce yesterday and the chain came off. I've been using chainsaws sparingly for 20 years and never had this happen. Took me 10-15 minutes to get the chain untangled. When I got it back on I noticed the tension setting was maxed out and the chain was at the correct tension. Hope this thing doesn't eat chains this quickly.

Mike
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(a)Typical Engineer

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It's possible that when a chainsaw throws a chain, depending on how it gets tangled, there is a chance you could have stretched only one section of the chain.  The way to check this is to mark the chain (with a marker), and then move the chain, and check tension, and do that all the way around.  If the chain is either very tight or loose in one spot, that is the stretched area.  If you get all the way around and the tension is even, then you chain has stretched uniformly.
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Michael G

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Even more reason for me to call CS. If this chainsaw is prone to throwing chains and it needs replacement once this happens this could get expensive.
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(a)Typical Engineer

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The main reason a chainsaw will throw a chain is because the operator did one of two things: 1) did not adjust the chain tension properly (mostly too loose), or 2) used improper technique, especially on the thinner 0.043" bar/chain, which is more susceptible to bar deflection.

Just like any power too, improper technique and poor maintenance will lead to premature failure.  The micro-lite (0.043") bar/chain has been fairly reliable when used correctly in my experience.
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Brave416

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This chain saw will not cut a 4 inch privet tree without the chain coming off 2-3 times. I wish that I had never bought this thing. It is a headache to use. Chain needs to stay on the chain saw. Worst chain coming off that I have ever experienced. I feel I am due a refund for this because it is terrible to use.
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(a)Typical Engineer

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Recommend you give Ego tech support a call to work through your issue:

For all Customer Service requests, please dial 1-855-EGO-5656 (1-855-346-5656). Agents are available 8:30am – 8:00pm EST (Monday – Friday) & 10:00AM - 6:00PM EST (Saturday and Sunday).
(Edited)
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Ken, Champion

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Your experience isn't typical of those posted here by other people who own this chain saw. I suspect there is either a problem with your chain saw or the chain is poorly adjusted. As (a)TE suggested, call customer service and let them help you trouble-shoot your problem.
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bettybartos .

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I have the same experience. I'm trying to cut up a couple of big downed pines that are not old and dried out. The chain comes off on every cut when I get to the bottom of the cut, it lifts the top of the chain as it exits and pops it right off, even though I've now tightened it as tight as I can, since putting it on as in the instructions doesn't work at all. It's brand new, made a dozen cuts then this started. Like he said, it's 10 minutes of down time for every 5 minutes of cutting. WAY annoying. And no, I'm not cutting sideways or bending the blade, the tree is horizontal.
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John McDonald

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Maybe try a replacement chain? They aren't that expensive. 
Same exact issue here with brand new chainsaw CS1600
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Peter Millard

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My new Ego chainsaw has the same problem. I replaced both bar and chain, and still the same problem. I have it set tight, but not too tight. 
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Dave .

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what are u cutting when it comes off?  I have the 14" CS and never have trouble with the chain comming off.  The trouble I have is it is underpowered with the 2.5 battery so i have to use the 7.5 (i don't have any batteries in between those 2)
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george_croft

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The chain on my saw comes off very often.
My problem is that the chain is still too loose, even after tightening it all the way.
I've tried with the chain adjust dial, and with the screw.  In both cases, it's still loose.
I can see where the nob has moved all the way to the end of the slot, so it cannot be
tightened anymore.  I've had the saw for about four years.

The bar itself is new.  Does a chain stretch a lot over time?  
(Edited)
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Isaac Knopes

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Chains do stretch, yes.  Speaking from experience in industrial maintenance, even the heavy duty chains can stretch quite a bit in a short amount of time.  If it saw a lot of use, it's probably due for replacement.
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george_croft

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Thanks!
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george_croft

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I bought a new chain and it now works great!
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Paul Christenson

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Adjusting The Chain Tension

  1. Stop the motor and remove the battery pack before adjusting the chain tension.

  2. Loosen the side cover knob.

  3. Turn the chain-tensioning knob clockwise to tension the chain. See the section: “REPLACING THE BAR AND CHAIN” in this manual for additional information.

  • ◾◾  A cold chain is correctly tensioned when there is no slack on the underside of the guide bar and the chain is snug, but it can be turned by hand without binding. The chain must be re-tensioned whenever the flats on the drive links do not sit in the bar groove.

  • ◾◾  During normal saw operation, the temperature of the chain will increase. The drive links of a correctly tensioned warm chain will hang approximately 0.050 in. (1.3 mm) out of the bar groove (Fig. 28).




  • NOTICE: New chains tend to stretch; check chain tension frequently and tension as required.

    NOTICE: A chain tensioned while it is
    warm may be too tight upon cooling. Check the cold tension before next use.









(Edited)