Repairing a bunch of Hikoki and Metabo HPT NR1890DC nails guns. Problem is, they won't fire nails

[@michaelfairchild]

I love how Dean goes everytime on a rant when Milwaukee tool is mentioned.

[@eduardocarvalho1547]

I was waiting for this one. I'm a Bosch user, but Hikoki nail guns are some of the best in my opinion. I own the 1890 and the 16Ga. Never had any problems with them. Sometime ago I bought the refill service tool so I don't have send it to a repair center. I really enjoy watching your videos, they're very educational and since I do maintenance and repairs on my tools it's always a great opportunity to learn! Thanks.

[@paulmcgeoch2603]

Where did you buy the refill service tool please?

[@eduardocarvalho1547]

@@paulmcgeoch2603 Hi Paul, my first comment got deleted. Just search for "Hitachi 371208 J-394 Reduction Valve Set". I ordered mine from US.

[@christopherkingrey4411]

​@@paulmcgeoch2603bought mine on amazon

[@marcelsmit8789]

Your tool knowledge is just amazing. Love to watch your vids!

[@sniperfi4532]

Hikoki guns are unreal. Outperform the paslodes easily and only slightly behind the Milwaukee in power but doesn’t weigh anywhere near as much as that hefty unit.

[@richiejames928]

Worth noting with these hikoki guns… with a certain combination of button presses on the on button and mode selector buttons… they go into ‘service mode’ and won’t fire but flash…. The problem is when the gun doesn’t fire the user presses all the buttons and tries everything and ends up in this mode by accident and it’s another combo of presses to get it out of it….. if you know you know. if your Youl think it’s knackered. hope this helps someone..

[@0rtmasta]

Such great wisdom shared from someone who has spent their life around these tools. Invaluable. All of the tips, advice, anecdotes are super useful and interesting

[@sdjnwhyNZ]

Just another thumbs up for the king of power tools

[@leonvdm]

HPT stands for Hikoki Power Tool, also, that regulator is set to 0.5±0.03 MPa (5.1±0.3 kgf/cm) = 5 bar or 72,5 psi

[@stevejagger8602]

Thanks Dean. I am unlikely to use any of the nail guns but I now understand how they function. The Hikoki of the three main makes looks to have the simplest operation.

[@jameshendrix8217]

wow I just commented on your last video if you had any hitachi cordless nailer service video's and here we are. actually metabo bought out hitachi, in the US/CAN hpt stands for hitachi power tools, great video

[@paulgilliland2992]

Who knew those guns were so complicated. Nice one Dean.

[@Gondul133211]

was walking around my local Bunnings and passed by the Paslode nail gun stand and had to resist pulling them apart i feel i could do it after all your vids. over a $1000 each over here in AUS ....

[@Robiscrapifixi]

Sorry Dean i meant makita battery framer The makita second fix guns are good Even ryobi has a battery framer Makita have lots of registered patents but behind the market on framer Love your channel Robert bribane australia

[@Aepek]

6:42 I’d have put in maintenance mode ¹ , pulled trigger 5x (must hold nail catch halfway down gun) to get pin full out, refill air chamber with hitachi regulator adapter w/ a 10 sec count at 110 psi, and turn off, back on, pull and hold mag pin catch halfway down gun and pull trigger ALL AGAINST PIECE OF WOOD and pin will retract and should be good to go. But 9/10 this is symptom of air chamber low in air imo FYI, can search KZbin and web for: how to refill hitachi framing nail gun air chamber to see a video explaining this all, if all needs is air refilling, otherwise the tear down done in this vid was pretty good and shows how easy these guns are able to be maintained and fixed no matter year bought (for most part that is), and if happen to find old pneumatic framing nailer or roofing nailer from hitachi at garage sale etc….buy it and keep it as it’s sought out here in states! ¹ to get gun in maintenance mode. Turn on and press power and fire selection mode at same time and hold for 10 secs, the gun blue lights will start flashing. Then make sure no nails in mag, press and pull mag clip nail holder halfway down and pull trigger against wood 5x till fire pin/spring stays out. You’ll know when here the loudest bang/click. Turn off, unscrew air chamber cover and remove plug and dint lose in tool, air will escape a bit when connect regulator adapter. Follow rest instructions above. If fill and when install plug back in after regulator adapter off and all air leaks out, fill again and if happens again, replace all o-rings and even might need doing if air don’t leak as they can dry out and crack. Unlike pneumatics where can oil them when using, battery nailers don’t need oil so all o-rings and gaskets go years w/ no maintenance (which ok for few years and then I would send into get a good cleaning maintenance checkup done maybe every 3-5 yrs or so depending on use for other battery guns, imo.).

[@artomkravcenko4358]

Best video for repair. Thank you. You are the best 😊

[@mikefield4650]

Thanks for the excellent vids Dean. Inspired by this one I had a go at fixing my sons NR1890DC. It powered up ok with both blue and green LEDs on but absolutely nothing happened when you pulled the trigger. Took it apart to have a nosey and test the trigger switch. No problems found. As I was putting it back together noticed a small white plastic rivet below the depth adjuster had fallen out of place. Turns out its magnetic and I'm guessing its for the hall effect sensor it that position. temporarily siliconed back in position pending obtaining a replacement and hey presto! all working. thanks again. Mike

[@GregBrecker]

Nice job. I’ve just picked up a framing nailer and 15 gauge nailer. Glad you like them! Like the cordless feature. 😁

[@radekp.562]

Dean, that valve looks exactly like a Shraeder valve for bike tubes. Easy to get online.

[@Compasscard]

The preload pressure is actually not that high. The service manual indicates 5.1 bar +/- 0.3

[@alan3995]

Really good video, i was recommended your chanel by a guy of facebook , i was looking to see who repairs hikoki under warranty in ireland, not much good having a warranty if there's no one to repair them,

[@queendlb5946]

Great video. Thank you for the explanation and recommendations. I learn a lot. Thanks.

[@gunsofbrixton-dx3uw]

Great to see your subs going up fast. Before you know it you will have that 100k

[@EliotTruelove]

This makes me excited for the Makita Framing Nailer that has many patents out! Seems like they are going with an air cylinder design thats even more serviceable

[@dmklim]

Wow!!! It looks like a cheap ordinary car/bike tyre valve! I think it worth to test tyre valve with these nailers.

[@frenchyroastify]

Canadian here. I believe HPT stands for Hitachi Power Tools.

[@skysurferuk]

What camera do you use? Those close-up shots are really good. 👍 You Tube auto subtitles really has fun with your accent! 🤣

[@ericanderson9004]

Thank you, now I know how to service and how they work.

[@shifty277]

Lovely little video! Watched when on my break on site. Just out of interest have you had any experience with the makita 40v stuff yet? Any in for repair or have you have a peek inside if your tool stores stocks the line. Thumbs up. Watching from London.

[@timtimtim5294]

Hey Dean, if you were going to buy a 16 gauge and 18 gauge cordless nailer, what would you get? I’m sick of setting up a compressor and running airlines just to do smaller jobs. I’m in the USA but can probably track anything down.

[@shlegomio]

Sorry Mate, I think your mostly right with your opinion about the service kit. But the seals for the piston should definitly be includet. Part # 11-14 are includet, If I read the drawing right. Cheers

[@Zogg1281]

The difference between the Metabo and Hikoki is that the Matabo is made using the imperial measurement system for size and air pressure and the Hikoki is all metric. It takes someone with a lot of skill to add the name on the different tools and they come off the same production line. From what I've heard those guy's can tell which is which just by picking the tool up, even with their eyes closed!!! 😋😂

[@RayPearce-c4w]

Hi just an observation the valve you replaced is a tyre valve the ones in bicycle tire would a modified valve tool not work better.

[@Biffo1262]

Those valve cores are in all cycle puncture repair kits and can also be bought at any car spares shop. I certainly wouldn't be ordering them from the tool manufacturer at 1Ox the counter price.

[@tonybr2469]

Great knowledge love your fault finding technique I was wondering about buying a nail gun but have no idea which one I’m retired now so it’s not going to be used on a daily basis so any suggestions would be appreciated because you certainly know your stuff not fussed if it’s electric cordless gas just what you would recommend I like the way your honest with people and know what your talking about very impressive look forward to your thoughts on my dilemma

[@rjwgardensandmachinery]

I absolutely love your videos mate. I would love to see you do a troubleshooting video. For each type of machine. Like what to look for when certain things aren't working right. E.g. Nail gun not firing. Look for this this and this. But anyway thank you for another great video I appreciate it 👍🙂

[@blacksupra10]

you can get a long reach valve tool, i think mine is toledo

[@tim62744]

Piston assembly is 211 pound and pinwheel is 112 pound ya looks good dean

[@EndoliteM4trix]

I can’t tell if you’re trolling us state folk by calling it metabo HTP. It’s HPT!!! Haha. It stands for: Metabo Hitachi Power Tools

[@bkacz88]

I thought he mispoke at first but then said HTP 20 other times lol

[@BRobberson]

Dean, do you know a good resource for the repair of the Metabo guns, got a different model (NR3675DD) but tries to shoot then blinking lights for error and shut off, then reset and does the same thing, you video was helpful in the taking apart, but looking for more diagnosing,

[@jamesevans20]

Thanks, Good information

[@histguy101]

So the story I heard was that when Hitachi sold off Koki power tools(Koki holdings), and Koki changed their power tool line name to Hikoki, Lowe's had a big problem with this and didn't want to sell the tools under that name. Lowe's is Hikoki's only national distributor in North America, and somehow they came up with a compromise of "Metabo hpt." Lowe's used to sell German Metabo power tools in their stores, and still do on their website, so maybe they figured their customers would be more familiar with that name.

[@robertrada4783]

People who buy tools from Lowes don’t know what Metabo is. Which is a problem when they’re googling the internet for batteries and/or cordless tools. They’re also doing every manufacturer on CAS a major disservice. “Yeah you just go buy some Metabo batteries and you can run our tool with it.” Cut to: customer buys Metabo “HPT” batteries. It’s fucking joke.

[@bladeoflucatiel]

They shouldn't even changed the name in the first place. I didn't even know hitachi and hikoki/metano hpt used the same batteries until a few months ago

[@onikwa]

Fucking Lowe's is such a joke. They have a serious lack of professional power tools and they still try their hardest to push out the ones they do have. Hikoki would be a great Makita replacement for Lowe's but between the stupid name change and the shitty state of Lowe's displays across North America it's hardly picking up any steam. The only companies that put up with Lowe's shit anymore is Stanley black and decker and Flex since chevron has infinite money to waste on Lowe's bullshit.

[@histguy101]

@@bladeoflucatiel They couldn't keep the Hitachi name, because Hitachi(large media conglomerate) sold Koki(power tool manufacturer). Using "Hikoki" was a great idea, imo, because in most places, the box you got the tool in always said "Hitachi-Koki" on it.

[@histguy101]

@@robertrada4783 I don't know if the story is true, but that may have been Lowe's perspective. A lot of Lowe's have been dropping Metabo HPT from shelves lately anyway, just like they dropped Metabo years ago, so screw them

[@reconbbs360]

I'm assuming oiling the slide for the magazine is a bad idea due to being around wood and probably dust. That's the first "fix" that popped into my head after you cleaned it up. I work on heavy machinery, so oil/grease is always on my mind at work. 😂

[@Betaniantie]

That same cars tire valve has been used from nail gun up to scuba diving balance vest 😄

[@slasher9883]

Yep otherwise known as a "schrader valve".

[@Biffo1262]

On the last I was screaming at the screen it's out if air....just regas it and check for the leak but even my bet was either the piston seals or more likely valve. Surely a leak check first would have been the priority?

[@rgjr702]

What PSI should be charged into the air cylinder when it comes time to recharge it, do you know? Thanks.

[@daig1984]

I’m glad your subs are going up, you really deserve every single one of them! Entertaining and educational content! If your reading this comment give this boy a sub and a like 👍🏻

[@deandohertygreaser]

I appreciate that!

[@plunder1956]

Some components have a tendency to go PING across the room. Thankfully the "C" clip on these guns is quite large, hence less difficult to find again.

[@richardmccann4815]

I'll have to look up the weight of that hikoki gun. The ryobi I have is too heavy!

[@EustonLi]

Hi Dean, quick question here after watching the video of changing the blown fuse on this gun. After the fuse is replaced, I realised the piston pin was stuck halfway and regardless I reset it, the gun just flashed two yellow lights, and pin still in halfway. Shall I purge the gas to pull the pin out and regas or if there is any other way to reset the piston? Many thanks and appreciate your knowledgable vidoes~

[@elliottchandler9626]

Does anyone know what PSI these get filled back up with air to?

[@gunnar7186]

I really do like your channel. I wonder if you could find the time to answer a question i have regarding a electric pressure washer. I can use it, but as soon as relieve the trigger the motor keeps turning on and off every few seconds. It doesn't stay turned off as it use to. I suspect some sort of leakage, so it cant keep the pressure up. Have any idea? Its a Nilfisk ALTO c120.2 (swedeish market, dont know if you have it in Ireland) Best regards, Gunnar from Sweden.

[@sleepyash5730]

that valve I'm 90% sure is a car tyre valve core that maybe somthing to test if its the same

[@BruiserBob]

Would it be possible to MIG weld some more meat on the last tooth on the pin? Build it up and file it down to correct shape?

[@HooperDJ]

Great video, just wondering when you said the Metabo was from overseas, maybe it was de pressurised for import? Good work btw

[@HeroOfTime303]

Dean, what Bosch impact and drill do you use in these videos? You seem to like them from how much use I see them get!

[@Aepek]

Hi, hope this helps. Looks like the Bosch is the GSR12V-300FCB22 12V Max EC Brushless Flexiclick 5-In-1 Drill/Driver System (also have 1st Gen the 140fcb22 model….). I actually prefer the 300fcb22 over my Milwaukee m12 installation drill driver b/c the footprint of the Bosch is smaller. The Milwaukee uses the D-handle grip and so I switched over to the Bosch 12v flexiclick to give a go and like it. DeWalt has similar drill driver and tried it, and I prefer this ranking for this type of drill driver: Bosch 12v flexiclick chameleon; Milwaukee m12 installation driver, Festool version, and DeWalt last only b/c grip on small side and feels weird and it feels like lacks power compared to others. Milwaukee’s is even more powerful than Bosch’s but the footprint of Bosch is better imo. So, Festool and Milwaukee use same type grip, and Bosch and DeWalt have same grip. So if in particular ecosystem try checking out that brands driver, but the Bosch is the smallest of all if need that

[@Aepek]

Sorry, he’s using the 18v version of flexiclick chameleon not 12v max, oops. I’ve also tested and in end, went w/ 12v max as footprint smaller and when doing hvacr work and cabinets etc….12v far better for access and not missing out on “that much extra power” 18v model has over 12v. Also, Milwaukee only brand that doesn’t have 18v version and Festool only brand that has option of 12v or 18v in d-handle grip or barrel style grip, where Milwaukee only d-handle grip in 12v tool; sorry about this too much info, do hope helps, and as you can probably tell/see, I’ve tested/reviewed a lot before settling in the Bosch 12v as my edc and when in production I’ve got all out so not having to change heads or bits, just grab the drill driver need for job doing.✌🏻

[@Biffo1262]

The regassing be done with something like a 300bar hand pump the same as they use for air rifles. I have two of those pumps from Amazon at £36 each and they work well..IF you have the strength to get it to 300 bar. The max pressure is only about 120psi/8.27bar so even a cycle trackside foot pump can manage that. I suppose the tool uses its own proprietary fitting though just to make life awkward.

[@deandohertygreaser]

Yes it could as long as you have the right fitting

[@Biffo1262]

​​@@deandohertygreaser the valve itself is a normal Schrader valve but it's too deep set to get the normal fitting on it. The screw thread is actually part of the outer casing which means you have to buy their specific adapter. I don't know if a tyre valve extension would even work which I doubt as they haven't left any male thread to attach to but if it did then it's a doddle to regas yourself. I reckon I could knock up an adapter for myself even in a mini lathe but HPA isn't something to mess with if you don't know what you are doing. Fortunately I do as I have trained and worked with high pressure apparatus all my working life.

[@kevinbenstock8116]

Hi Dean, just found and subscribed to your chanel, i love your knowledge of powertools and the way you explain what you are doing and what the problem is, i am in the process of buying a framing nailer, between the Hikoki NR18obc or milwaukee M18FFN quite a bit heavier than the gas ones i know, what would you go for if it was your hard earned cash??? Cheers Kevin

[@deandohertygreaser]

The hikoki all the way

[@peterjohnson4006]

Top video fella

[@whar2010]

😊good job and no extra parts that you don’t know where they went…

[@alicharlie8146]

Like it when he say Maakita in his irish accent

[@ManveetDhaliwal-x4t]

Do I have to put in gas? Can’t compressed air work?

[@jaysway1138]

I love the channel, just was scratching my head on the last repair. You do know that valve is just a tire valve right??? You don't need knipex needle nose for that. Every shop everywhere has a tool which is under $5. And the part is under a $1. Keep up the good work, sorry no disrespect, that just had me saying. Why.

[@tdotw77]

😅I was surprised he didn't have a valve core removal tool either! Someone should send him one😂🛠️🔧👍🏻👌🏻👨🏻‍🔧😀🍻

[@johnholden3337]

What are your thoughts on metabo tools dean? I want to trade my Milwaukee stuff in and get metabo

[@tdotw77]

From what I've seen here & what I've gathered....he definitely does not like Milwaukee tools or lack of replacement parts at all. Haven't heard him saying anything bad about the Hykoki\MetaboHPT brand at all tho! 👍🏻👌🏻👨🏻‍🔧😀🛠️🔧🍻

[@christopherkingrey4411]

Metabo HPT ... Lifetime Warranty ... EXCELLENT TOOLS

[@kierandoherty1600]

Heard him say parts more expensive for metabo/hikoki than makita but more fixable than milwaukee and dewalt

[@christopherkingrey4411]

Are you asking abt "Metabo" branded/German Manufactured tools or Koki holdings "Metabo HPT/Hikoki tools? I have never used "METABO" tools ... I've handled a few ... seem exceptional ... the METABO HPT tools I very much prefer over everything else ... their offerings are not as extensive as milwaukee so you may want to hold off on trading them in ... but replace tools or buy new tools wn needed/avail frm metabo hpt ... as previously stated ... lifetime warranty

[@ognjend2798]

Is it possible to refill it without the gas regulator thing?

[@ShaunLewis-l5o]

so what is the pressure needed for the re-gas. from your vevor compressor psi/bar

[@trevorm7013]

Thanks!

[@deandohertygreaser]

Thank you

[@mikeknowland4815]

Just needs a regas then they just keep shittin and shittin and shittin. Allll day long maybe shit a thousand nails. Haha I watch your videos all the time because your so smart and a great teacher but my American brain just cannot unhear you saying shit a billion times. Please don't change

[@farmuhqas]

I wish I had your knowledge of these power tools. Amazing. I have a dhs680 makita circular saw it runs and the switches off. What could be the cause my good Sir.

[@craigwheatcroft9233]

Hi dean what is the best and lightest battery 16g nail gun thanks

[@joediver4412]

What part of the country are you in I can't find out why my gun not working . Green and blue light on but nothing happening

[@dannym670]

Hi Dean, great stuff! How do i go about getting some tools to you for repair? Thanks

[@deandohertygreaser]

sorry you cannt. Im only doing local repairs and there is no way i can take on more work

[@dannym670]

@@deandohertygreaser ok thanks 👍

[@danielbathrooms3595]

My Hikoki has randomly started firing 2 nails at a time! Any suggestions?

[@edchristie4839]

Great vid! 👍

[@georgebonney90]

Thank you Sir

[@mannyayala8313]

Koo videos need an metabo hpt 18ga brad nailer repair.

[@lotharschulz4768]

WAs that an innnertube valve from a tyre???

[@aroeztuerk]

Metabo HPT (Hikoki/Hitachi Power Tools)

[@Robiscrapifixi]

Love your work Dean, but, Makita framing nailer, where the bloody hell are you. Robert brisbane Australia

[@deandohertygreaser]

The makita gas guns are useless. They were never popular. I really get them in. But when I do ill post a video for you

[@EliotTruelove]

​@@deandohertygreaserhe's referencing the Makita Battery Framer that has many patents out, may be released late next year

[@dusanmilojevic3017]

Hitachi bought Metabo then sell Koki division to Chinese without rights to Hitachi name.So they decided to rename tools Hikoki (Hitachi +Koki) and for America Metabo HPT (Hitachi power tools-HPT).

[@deanthompson6664]

Were did u get the filling adapter mate and what psi do they fill to

[@christopherkingrey4411]

Bought mine on Amazon... think in other bids it said to set compressor to 70psi ... but shouldn't matter w the regulator built into tool

[@deanthompson6664]

​@@christopherkingrey4411do you have link yo adapter mate

[@robertrada4783]

Koki is insanely cheap when it says Metabo HPT on it. Over €200 for a drive pin? That’s basically the price of the tool + charger and battery.

[@deandohertygreaser]

I'm referring to the prices in Ireland. The tool batteries and charger cost around 700 here

[@joeblogs5163]

I guess you nailed it then 😂😂😂😂

[@jasonbuckler190]

Speaking of cons, DIY tool con: Ozito (Einhell in EU) want AUD $20 for brushes for their AUD $50 random orbital. 7 years old, guess I'll buy a new one.

[@richardmccann4815]

Unless you really love it, I'd buy a different brand out of disrespect! And send a barrage of emails to corporate!

[@jasonbuckler190]

@@richardmccann4815 I only love it because I've been abusing it for 7 years, on 4th base pad. Corded unit, but has outperformed/outlasted similar Makita and AEG models. Will take your advise though!

[@slasher9883]

Ozito are throw away tools, surprised they have any spares for them at all.

[@jasonbuckler190]

@@slasher9883 agree for the most part, corded tools way better than their battery range though. More the principal of thing on brushes cost

[@sandalhq]

Not the kind of dirty magazine i was thinking if.

[@gutsngorrrr]

I will no longer buy a product that can't be repaired, the problem is finding them.

[@catfishsalesco]

How many PSI / BAR do you charge the gun up to?

[@tdotw77]

It seems that special Hykoki\MetaboHPT air line tool has a regulator on it to put the proper pressure in it. I don't know the exact PSI, off hand tho. That's why they want you to buy their specialty tool! 🤔🤷🏻‍♂️👍🏻👌🏻👨🏻‍🔧😀🍻

[@christopherkingrey4411]

I think the vids I watched said to set compressor at 70 psi

[@chadhamilton88]

I would love to have your job or work with you I will learn a lot

[@patrickmcdonagh381]

they are very heavy

[@joelmartin2549]

Maybe someone purposely left the air out of the Metabo, you know like a disgruntled employee.

[@alfonsolopez3616]

Milwaukee no

[@josephhamad7709]

So nobody is going to comment on what it sounds like when he says "shoot" lol?

[@davidquirk8097]

I think the branding thing is to do with the perception that the USA doesn't like things Japanese. I remember when Japanese Diesel Kiki decided to rename to Zexel in order to make progress in the US markets.

[@rossnolan2883]

😊😊😊😊😊😊

[@imitch5]

that first hikoki was ABOLUTELY still shooting nails. what in the world was that one about. how on earth was the wood getting torn up like that where it wasnt before if the nail wasnt getting shot

[@EliotTruelove]

Drive pin overextends from the front and dimples the wood, this is so the framing nails sit below the surface

[@powkung45]

haych-tee-pee

[@jdmccorful]

Good deal! Learning lots from your videos. Can't thank you enough for the education.

[@djsi38t]

Way to many jump cuts,every time you have a problem you cut it out instead of showing how you solved it...This is not helpful at all for someone trying to do this repair..

[@deandohertygreaser]

Sadly, if I didn't cut the length down, this would be 2 hours long on each full stripdown.