Most impact drivers are built the same way so this is a video on how to disassemble Andre grease them so that you have a nice long life from your tool. . .
Please note rhat there is a different kind of grease to each part. The bearing, uses bearing grease (kind of Yellow). The gear uses graphite (Grey) or multi purpose grease (Red). And the seal uses seal grease which don't harm the rubber (Also Yellow). Wonderful video!
I rebuilt my deck and my grandparents' deck with my dewalt impact that I got in 2019. Just noticed early this fall while on my grandparents' deck that it had a little grease seeping out of the case seams and was getting hot. Just decided to crack into it this evening. Looking forward to cleaning it up and re-greasing. Always looking at ways to make my tools last. Thanks for the video!
Thanks for sharing. Liked, subscribed and commented. Now to see what might be bad on my DCF899H and what all maintenance I'll need to perform. I'll link your video in my description as well.
If you coat the o-ring with a light layer of the grease it helps them stay stuck where you put them and helps them from pinching in my experience from rebuilding dirtbike motors. Might not apply here just thought I’d share
I used moly grease. Sound is quite better. Since it extreme slippery, it like to leak out at socket, these reason have to considering . . . . Thump up and like from Thailand.
Nice video, good explination and warnings. myself I would have at minimum used compressed air to blow the old contaminated grease out and or flushed the part with solvent then dry before lubing.
While I think it is ridiculous one are not allowed to service your own tools without voiding the warranty. I do think you might have mentioned that cutting those stickers voids any warranty you might still have on the tool. Thank you for the clear explanation on how to service these tools. I'm going to see if I can breath some extra life into mine.
Thank you, I've been looking for this answer, kinda figured it's why they have the stickers connecting the two halves. Read on a post of a guy who opened his Dewalt to find it nearly dry of grease. Makes sense from the corporate point of view of planned obsolescence. Buying new milwaukees and debating how curious I am lol. Because how long would they last if they were greased properly to begin with instead of being made to last the length of the warranty
Finally a understandable video with a English speaking person .. lol seriously man this isnt even the type of drill i have or need info about but it will do for now
Why don’t you remove the old grease. It kind of looked contaminated with small metal flakes. What about removing the end cap off of the bearings and greasing those?
Is it ok to mix different kinds of grease? Im hesitant to do this just because i’ve heard that you have to clean out the grease first if you’re using a different kind.
I was pumped to learn how to regrease my impacts until what you said at 12:07. I do exactly that. I go through 1 or 2 of these impact drivers a year. Not too bad I guess.
Hi, Got a chance to watch your video. Is there a certain type of grease that should be used for this tool? Or what type did you use and where can we get it? This was a great video
@@CatusMaximus I'm going to grease my dewalt 1/4" impact like you do in the video. Just had one more question. This DeWalt impact (DCF 887) is know to over heat. Can it be caused by not having enough grease in the gear box? Or can it be something else? I understand that impacts get hot and that's normal. When they get extremely hot i kind of question it. Will having good synthetic grease help the extreme heat? Just your thoughts. Thanks
I just watched VCG'd video and some other ones and I noticed (and I could be wrong), but the DCF887 does not appear to have a cooling fan on the back of the motor (is it in the middle where the small vents are?) On most impacts/drills there is a fan on the back. But on this model, even though it has vents on the back to look like a fan is there, there's no fan, just a plastic housing that holds the bearing. There's also quite a bit of extra/unnecessary plastic housing stuff over the rest of the motor. It's like Dewalt really did not want the motor being directly supported by the clamshell like other major brands. But that means lots of extra plastic holding in the heat. If the fan is in the middle it doesn't seem to have good ventilation with only a few small holes around it. it is no wonder there are many videos of these smoking and burning up. It's like Dewalt designed it to have a really durable motor while forgetting the most important thing, keeping the motor cool! Weird. I really want one of these but it seems like a weird, maybe poor design. The DCF801 12 volt Extreme model appears to have better ventilation with a large fan, lots of vents in the housing, and less extra plastic around it. I bet it holds up better.
The fan is smaller and it is between the gearbox in the front of the motor and impacts have smaller Motors because they only experienced a certain amount of load before they start impacting. drills have bigger Motors and better cooling because they're direct drive and when drilling large holes or driving tough fasteners they have to put out lots of power
@@CatusMaximus Thanks for replying! Glad to hear it does have a fan, thanks for the explanation. Do you think it's cooling is up to par compared to other impact drivers? I just picked up the 12volt Extreme impact and it is very nice, and small. Still interested in the Atomic and/or 887 model though.
@@browsebywire4096 Have the 18v atomic model - which looks pretty much identical to the one in the video. I haven't taken it apart, but I can tell you that it has a crap ton of airflow and cooling. it actually shoots air out of the vents with a very considerable speed. Of course, I don't know how well the air is routed through the motor, but honestly, I don't think that heat would be much of an issue, I certainly haven't had any in that regard (or any, for that matter). really, the biggest complaints I have about it (which are by no means limited to this model or brand) is that the reverse switch is weirdly sloppy and loose, when the drill version's is perfectly fine - I assume this is a defect, the rubber grip holds onto dirt and a smoother design would have been slightly nicer anyway, and the dewalt battery design makes the 'toe' of the battery pretty much line up with the business end of the driver, which can be annoying
You shouldn't spray anything into the motor itself. It uses sealed bearings. I would use a light amount of synthetic grease in the hammer case. Also WD40 is not a lubricant. It was designed to displace water to prevent things from rusting.
I only put a little bit of grease but in key areas and then spin the gears myself to check how much there is, Going all _'restoration channel'_ and overpacking the thing to death results in a slower running tool, faster battery overheating, and sometimes melting the brush motor. I've had to degrease and redo a number of makita LXPH03s that had this problem
I have 2 of these brushless style 20v’s and have used them for quite awhile professionally. whenever they impact, the silver nose separates from the yellow plastic body and quickly retracts back in. It will do the same for each impact. I had one warrantied before and they said something broke with the body. You taking these apart before what might have broken for the silver nose being loose from the yellow body? I would like to repair mine myself, I’ve resoldered a few tools before. I’d like to fix my issue and grease service both my guns.
I have not heard of that before although I could understand it on a heavy use cool what you're describing sounds like the plastic housing is all broken apart or maybe the screws are stripped out and it's partially splitting in half along the gearbox to slip just pull apart the clamshell should be obvious and why the gearbox is popping out
Catus Maximus we’ll see, all my torx sockets and bits are too large for the bottom t10 by the power. Had to order a t10 driver on amazon gonna open it up and see what’s wrong. It’s like the hammer pushing the silver nose housing out only by .5-1mm at a time each impact .its pretty subtle but when you bang on a bolt you can see it. And it’s gotten worse lol.
Please help need your opinion...thinking of buying a 3/4 impact gun. Im about to buy a snap on 1 is it worth it what do you think is the best 3/4 impact for the money
I purchase one of these and it's only going in reverse, I pulled it apart to check if anything is blocking the switch but no, it's still only going in reverse, any technical support anyone?
Not sure if you still read the comments, but hopefully you do. I'm trying to replace the bigger bearing on the motor. The one that is stuck on the armature. I'm pretty sure the armature is supposed to slide off but mines rusted. let me know if you got any idea. Thanks for the videos!
the bearings are press fit, you will need a puller, and if the bearing is really close you may need a bearing puller adapter (looks like a big cigar cutter).
If it has a whine after reassembly, the sun gears are not perfectly aligned with the ring gear, disassemble and reassemble. Also ensure to clean off all the old grease to remove any particulates or debris from breaking in.
Any idea what would cause the front silver end to loosen up? I can grab that part and shake it a little bit. My DCF886 is a few years old but hasn't really been used extensively.
When I disassembled mine a flat detention spring fell out and I can’t figure out where it goes. Do you know? It looks like it’s for the trigger or reverse switch??
dewalt impact driver stopped working. it is a model with brushes. want to replace one part at a time. it is most likely the brushes, the switch, or the armature. is there any way to be sure where to start?
It's probably cheaper to buy a used impact driver than it is to buy the parts to fix this one. You can use a Multimeter the past to see if the trigger switch is sending power to the motor and that will let you know whether it's the electronics or the motor itself
My light won’t turn off. I took it apart enough to see that it’s all glued together. I blew 200psi air at it to get rid of motor oil spilled on the trigger but the lights still won’t turn off.
Hi, I have just bought the same impact driver and the chuck seems to have a little wobble to it which makes attaching fasteners awkward, I have looked into it and getting mixed answers about if impact driver chucks are meant to wobble. Are they?, And if not how do I fix this?
I found the same thing some brands are a little tighter than others but no impact driver talk is going to be tight like a drill chuck I'm not entirely sure why they make them like that
It's normal for a impact driver if it stays unused for 2 - 3 days to have some oil on the case on the top of the tool between the direction LEDs and the front side of the tool , it looks like some kind of condensation, but in reality, it's oil, i always clean that and then in use also from the fan blades somehow micro drops of oil reaches on my wrist , but the impact driver, as far as I know, it's not making any abnormal noises .
Yes oil has a high wicking Factor it will find its way out to the tiniest of spaces since impact drivers vibrate a lot and get pretty warm oil what kind of CPAP you put them down just a nature power tools
@@CatusMaximus Well it's brand new i have had it for about 2 weeks, and this is my first impact driver, a SKIL 3210, and I thought it was defective directly from been new!
Do you mean hammer, rather than anvil? I assume it's because you can make the device lighter by making it hollow and increasing the spring strength on the hammer.
The rotating flywheel needs most of its mass near the outside perimeter. Adding mass near the middle would do little except make the tool much heavier to hold. So it’s actually a great scientific design choice.
I saw an ad for cat treats before this LMAO I would be careful adding grease without cleaning out the old grease completely unless you know for sure what type of grease is already being used. If the grease is not the same base it could react and turn to mud.
Dude, FIRST you should clean all the old dirty grease off..! Then you may lubricate the gears.. Now, all the old metal cips still harms your gear box, don`t you think..?
Great commentary and video by Cat, and the only thing that irritates me is talking with the hands! WHY DOES 80%OF THE VIDEOS MADE, CAUSE HAND TALKING? Thanks for letting me vent.
I use mine daily to install cabinets, and have never opened one up. They last for years as they come. By the time they wear out, there's a new, better one to buy.
@@troynovak3779 I got the Dewalt 20v platform for this reason. The tools are still mostly serviceable with parts cheap and easy to get. Most importantly the battery packs are rebuildable and don’t have any complicated battery management circuitry for the cells. I am not upgrading to Powerstack batteries since they will become landfill someday like every smartphone.
