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DCCS620 Leaking oil - Troubleshooting

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26 comments

  • D Barrett

    https://m.youtube.com/watch?v=DOcs38FmNJw
    This oil tank doesn’t appear to be sealed well enough. Dewalt company need to fix the poor oil tank design and give the folks who purchased it the fix too.

  • Michael Benjamin

    How do you remove the oil cap in order to install o-ring?

  • Larry McCarter

    the oil leak is not just from the filler cap. It also leaks from all the orifices - vent, output tube,etc.  Can't understand why Dewalt has not at least put a gasket sealer on all these openings - this is not a new problem.  It would take them a matter of seconds during assembly to do this.  For the home owner it's much more involved - tearing the entire maching apart, apply sealer, then reassemble the machine. 

     

  • Homer Frizzell

    I just got one of these. Love it except whenever I set it down there's a little puddle of oil left behind. I've seen videos on how to repair this but if I tried those it would not get put back together proprerly. DeWalt should foot the bill for a fix. 

  • Larry McCarter

    The recommendation to remove the oil from the chainsaw every time you use it is an insult and should be removed.  Anyone using a chainsaw frequently is just not going to do that.  I don't do it to my Stihl, and I don't have any leaks.  DeWalt needs to  fix the leak problem.  Reluctantly, I ordered another 20V Dewalt chainsaw (most of my other power tools use the same battery).  Only this time, right out of the box, I took the entire saw apart.  As indicated on a very good you-tube video, the seams in the oil tank are prime spots for leaking.  I put gasket sealer around the vent, the output tube, and the fill assembly.  Reassembled the saw and no leaks.  Instead of me taking an hour to do this, Dewalt could have this done during assembly in about 10 seconds.  I agree with Homer, Dewalt should foot the bill for this 'repair'.

  • David Ogg

    How does Dewalt not know the leak is not from the oil cap? And there is an o-ring its just not on the cap its in the neck! A blowup of Dewalts own parts diagram shows the o-ring as #67 part number DWB-90618339. But somehow they don't know there own part excists. Now everyone running around putting in a second 0-ring on the oil cap wondering why there chainsaw still leaks! Store it with the oil cap facing down yes down because the oil leaks from the opposite side not from the o-ring thats already there! Stored mine on its side oil cap to the floor since I bought not a drop!

  • Scott

    This issue is actually a huge safety problem.  My saw leaked like a sieve form the first hour of use!  This past weekend I was limbing about a dozen fallen trees that took about 6 hours all in. By the time I was finished my leather work gloves were saturated with bar oil so much so that the saw was moving all over in my grip or lack there of and even climbing in and out of my tractor was difficult and dangerous as I could not properly hold on.  The tool box mounted to my tractor was coated in bar oil and by the end of my work session was covered in oil soaked wood chips. It took me 20 minutes to clean it and there was still a thick coating of oil in the bottom. This was my first Dewalt purchase and you can bet it will also be my last purchase from them.  

  • Rod Wilson

    I agree with earlier comments that the problem should be corrected by Dewalt since the oiler system has a design flaw that negatively affects the normal use of the saw.  My saw leaks from the bottom area near the blade, not from the oil cap.  Has leaked since I first got it, a real pain and messy.  I agree that after purchasing numerous dewalt power tools, this may be my last if they don't stand behind their tools and take care of their problem.

     

  • Larry McCarter

    Rod,

    I agree with you 100%.  Dewalt could remedy the problem in about 5 seconds during the manufacturing process with a little bit of permatex.  (see my post from 2 months ago).  The seam where the two halves of the oil tank are joined prevent the ports from sealing and that is where all the oil comes from .  I completely disassembled a brand new saw, permatexed all 3 openings in the tank (filler, vent, and output), and have had no problems.  Sad it took me an hour when Dewalt could have done it in 5 seconds.....

  • Rod Wilson

    Thanks, I'll likely be trying that.

  • Dan Poisson

    awful product design, I wish I could get a refund.  Terrible customer service.

  • patrick campbell

    yes, very disappointed. a nice tool with a fault that makes it unusable. looks like ill be tearing it down. this problem needs to be rectified immediately.

  • Mark Vance

    Never buy any thing dewalt again

  • Michael Benjamin

    It’s surprising that Dewalt has been silent on this subject since putting out the BS about the cap and emptying the oil. Dewalt where are you?

  • Shawn

    The O-ring information is not complete as it doesn't include the thickness needed for the o-ring. 

    Also a part number and link to suppliers would be helpful.  A previous poster says it's #67, but it's not clear that is the O-ring that goes around the plug, or somewhere inside of the fill tuber.

    Really disappointed with Dewalt here.  My in laws have the same model which leaks as well too.

  • David Ogg

    Shawn I think it is 

    90618339
    RING O It is not on the cap it is in the hole the cap pushes into. Hard to see but if you look inside with a flashlight its there. Store with oil cap facing down yes down. Mine has never leaked. Because it doesn't leak from the cap it actually leaks from the opposite side.
  • David Frickel

    How do you empty tank? Mine has a funnel like apparatus in the tank and the oil is impossible to remove. I lay mine so the bar is up because it leaks where the chain gets its oil. I have had a number of different brands and haven't found one that can be stored with oil in it and not leak.

  • Larry McCarter

    David,

    Are you sure the leak is from the chain port?  Mine leaked from all the ports due to poor seals because of the construction of the tank (a seam where the two halves were glued together). (See my posts from 4 and 6 months ago).  I've had a Stihl gas chain saw for over 20 years, have never drained the chain oil, and it has never leaked more than a few drops. 

  • David Ogg

    Not a 100% sure. But it's from that side at least. I read a lot of posts and someone said to store it with the oil cap to the floor. I have been doing that for over six months and it hasn't leaked since. So somewhere on the chain side something is not sealing properly.

  • Leo Wentzel

    Tore mine apart and found that the leak causing all the oil to flow out all over the saw was o-ring part #90104270, which goes on what DeWalt calls a Plug.  The Plug fits onto the outside of the oil reservoir.  This o-ring is supposed to seal when the chain-side ½ of the saw housing is pressed back together with it's mating side (left side).  Because the oil is being pumped through the Plug, if there is any back pressure at all on it flowing out to the chain, the o-ring is supposed to stop it from leaking all over the inside of the saw case.  I found the o-ring was too small and was not sealing at all againt the chain-side half of the case.  So, I went to the hardware store and found a thicker one, with the same size inner diameter and replaced it.  Haven't had a leak out of the case yet.  Note, there will always be a drop or 2 from the chain/bar, because the bar oil that lubricates the chain and bar will have some residual when you stop using the saw.  But, that's all I have now.  Reservoir does not empty.

  • David Ogg

    Leo that makes sense because I have been storing mine oil cap side down and zero leaks. I never new where it leaks on the chain side but as long as I store it with the chain side up its never leaked.

  • Jack Barnes

    nothing new.  I have now have two of these dccs620 saws, both leak when sitting in what most would say is a typical chainsaw “resting” position.  one failed and would not oil the chain at all, even with the oil tank freshly filled.  i have an old, very cheap poulon wild thing 2-cycle that only uses oil when i'm actually cutting something.  anyone heard when dewalt will offer the repairs they suggest, to all current saw owners, free of charge?  this is REALLY bad engineering.  It's like someone who never used a chainsaw designed it, and folks who think these are repairs that should be fun and expected home projects, are "supporting them".   The few times mine worked the way they should, they were awesome to use.

     

  • Larry McCarter

    Jack, it's shocking to me, with the quality DeWalt has put in to their other tools, that they have made no comment on this.  I still believe the main leakage problem is where the two halves of the oil tank are seamed together.  That raised seam causes the output tube, vent, and fill assembly to fit poorly and leak.  As I noted before, I totally disassembled the second one I received (returned the first one), right out of the box.  Put permatex on all ports on the oil tank and it hasn't leaked since.  (Dewalt could do this in about 5 seconds during initial assembly; took me about an hour to take all apart and reassemble).

  • Jack Barnes

    Larry, wish I would have seen your post when i got the second one.   Totally agree about Dewalt's reputation….they wouldn't have it if their first tool design was like the chainsaws.

  • Larry McCarter

    Jack, not too late - if it's still leaking oil and you're going to keep it, you can still tear it apart and permatex the ports.  I found a youtube video of a guy disassembling one of these to do exactly what I did and it's pretty good.  (I found it AFTER I did mine…argghhh).  Just pay attention to the springs and stuff as you take it apart.  

  • Jack Barnes

    Thank you sir!

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DCCS620 Leaking oil - Troubleshooting