Because of its design, the DCCS620 is normal, however there are a couple of things that you can do to prevent oil leakage.
- Empty the oil after using it. Store this chainsaw without any oil in it, so it won't leak while not in use/stored.
- Use an O-ring on the oil cap:
- Remove the oil cap completely from the chainsaw.
- Use a 5/8 or 3/4 o-ring and put it into the indentation of the cap. You might need some pliers to stretch the o-ring
- Once it fits perfectly into the indentation, lubricate it a little bit with some oil and put the cap back onto the chainsaw. Please make sure that it fits all the way in, as it should.
Please notice that lubricating the o-ring with some oil after it's into the indentation can help to put the cap in place without forcing it too much.
Comments
58 comments
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.
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.
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'.
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.
Yep, they should take immediate action. It should be noted that there is a design flaw. I was thinking the same as Larry to buy a new one and the do a rebuild before putting oil in it. But then, why, esp if DeWalt does not even ack the issue. It is a shame given the reputation DW has in the industry.
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.
AJ - great comment and suggestions. DeWalt's “solution” is to drain the oil after every use……hurts my head..
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,
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.....
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).
So here's a thought… buy it from Home Depot or Amazon. When it leaks, just return it. The returns go back to DW. When the units start to pile up, either DW will have to address the issue and/or the resellers will not carry them until DW takes action.
I didn't realize this was so wide spread. May be time for a class action.
What is sad is there own support tells you to put in an o-ring when there is already an o-ring that is why adding a second one does nothing. Second of all that is not even where it leaks from! I will say it again you don't need an o-ring on the cap because there is already an o-ring about an inch down into the neck. Everytime you put the cap on you are literally pushing it through that o-ring!
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.
Sadly, it is a decent little saw, IF you fix the oil leak. As I posted earlier, tear the whole damn thing apart, put a little permatex on all the ports of the oil tank, and reassemble. The leaks happen because of the oil-tank manufacturing process - they seam the two halves together, and that seam interferes with the ports. Permatex or similar will fix it for good.
I also said before that it's sad that DeWalt doesn't do this during the manufacturing process - would take about 10 extra seconds. Instead, I had to take an hour to tear it all apart…
Thanks, I'll likely be trying that.
Never buy any thing dewalt again
awful product design, I wish I could get a refund. Terrible customer service.
Just joined this group. DEWALT DCPS620B 20V MAX* XR® Brushless Cordless Pole Saw just over a year ago and because of back problems I only just started using it (September 2024). It works great. But I immediately ran into this problem of the oil leaks you all are talking about.
I have had to prune back a tree both because it was growing tall enough to shade my solar panels and because in California the insurance companies are looking for any excuse to cancel our policies. But when I stood it up between cuts, when I laid it down on one side or the other, it did what you all have experienced. Strangely, when I prop the motor/chain part on a 4x4 block of week and keep the oil reservoir level, it does not leak.
I have read all your comments and I am prepared to disassemble the head area to use Permatex to make the repairs, but there are several Permatex products out there. And I have tried to find a YouTube video for this pole saw without success. It would be really helpful if any of you would 1. ID which Permatex product to buy and use and post a link to the YouTube video you say that shows how to make this repair.
I too have been buying only two brands since the bloody batteries are so expensive. I have been really happy with Dewalt products for their performance from my Dewalt “Skill” saw to an off brand small vacuum stick that nevertheless uses Dewalt batteries. Since the pole saw is over a year old, I am happy to make repairs, I just need to be shown how to make them. Thank you all for your help and suggestions.
No dice.
The really annoying thing is that it would take DeWalt about 5 seconds to fix the problem during the manufacturing process. All the assembly guy would have to do is squirt permatex (or similar) around the ports on the tank when he is putting the saw together and problem solved…
I did send the first one back. Right out of the box, I had filled it with oil and put it in the back of my Gator, for work the next day. The next day I came out to find the Gator bed full of oil…..
Only because of the battery compatibility issue (uses the same as many of my other tools) did I order a second one. That's the one that I disassembled right out of the box and permatexed the ports…There's a raised seam where the 2 halves of the tank are fused together, so the connectors do not seal properly. Just takes a little permatex to fix it (and an hour to take it apart and put it back together)….
So, I had to get a chainsaw and given my investment in batteries, and the fact that I found a good deal going, I ended up with this chainsaw. However, in line with all the comments provided here, prior to putting any oil in, I followed the YT instruction and sealed all the potential leak spots. Result NO LEAKS! So, here some concluding comments:
1. If you buy this unit, follow the YT (https://m.youtube.com/watch?v=DOcs38FmNJw) instructions and seal the crappy oil tank (before having to deal with the mess with oil). The instructions are great. Yes, it would have only taken DW 5 minutes to resolve but it will take you about an hr., esp. when doing it for the first time and tube of gasket sealer (from HD - $8).
2. Shame on Dewalt (DW) that they have not addressed this issue esp. when there has been so many comments on their own website. Double-shame on DW as the guidance Dewalt provides about using an o-ring to stop this leak is false. There is already an o-ring provided as part of the design of the cap. The oil does not leak from the cap! Not sure what Dewalt's objective here is but it is misleading and not what one expects from DW.
3. Massive thanks to Papermoongarage for doing the YT video
4. DW should track down the YouTuber who provided the video (@peppermoongarage) and pay him a handsome amount of $s for preventing a whole bunch of chainsaws being returned to DW.
Finally, once again, thanks to Papermoongarage!
It's ‘left-hand’ threads - you should be able to hold the sprocket and break it loose with nut-driver drill. Here's a video that I found helpful. https://www.youtube.com/watch?v=DOcs38FmNJw&t=790s
Yeah..This thing leaks ALL the oil out if you store it with oil in. Draining the oil is a ridiculous suggestion. What, are these people stupid??? Their suggestion to put an O ring in does not work. There is no room for one even with the slot, unless it is some special type of dimension Oring…In which case…WHY DOES IT NOT COME WITH ONE???? And not only that, the plastic retaining clip breaks when you take it out of the oil tank!!!!!
Do not buy this tool. Made in CHINA, so say no more.
Nigel Smith it does come with an Oring. Its just not on the cap its in the neck of the oil tank. Dewalts own parts diagram shows this and even has a part number. But yet there own tech says put an Oring. Take the oil cap off and look into the neck where the oil cap goes you will see the Oring. The neck is black and so is the Oring buts its there. Which is kind of useless because it does not leak from the oil cap anyway. I have told others you literally store it with oil cap facing down because it leaks from the opposing side. I have been doing this since I bough as someone else had suggested. Mine is full off oil and I have had it for a year and it does not leak. The occasional drop or two but I store it cap down on a rag. The is dry!
AS I posted before, mine leaked from ALL the ports on the oil tank. Disassembling the chainsaw and putting a little permatex on all the ports fixed it. DeWalt could have done that during the assembly process in about 10 seconds. Instead, I had to spend an hour or so to fix THEIR problem. The problem is that the oil tank has a seam where the 2 halves are bonded together. That seam prevents a good seal (without permatex), so you get leaks.
I am going to try to fix this thing as I have gifted it to my wife and she likes using it. My solution was to spend like $2500 bucks and give up on Dewalt and go Red instead, solved most of my Dewalt issues including DOA tools and terrible support when they die.
Peter D'Aprix AJ's post from 1 month ago has the link to the video. Looks like 5 posts above yours. The video poster shows the tubes he uses.
Dumb question: how do you loosen the 10-mm chain drive bolt? The drive just turns along with both ratchet and drill.
Pretty terrible design… very disappointed in dewalt for not doing anything to correct the issue. Did you guys do any quality testing before releasing this product? But thinking about it more, thay would cost money… which then the execs wouldn't get as big of bonuses.. I'll be exploring other brands for the rest of my tools.
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