Metabo HPT NV45AB2 Nailer Wont Fire Leaks Air Wont Feed Skips Nails Full Rebuild Process Hitachi

[@oO_SAVAGE_Oo]

Ive taken so many of them apart without success. Glad to see someone finally put a video out. Awesome job!

[@IndRepair]

They are definitely not the easiest to rebuild but pretty simple if you know what's going on. Glad it is helping someone! Thanks for watching!

[@tomfoolery9977]

YOU Defiantly have the best video on this. Thanx for the good content. Top Notch stuff.

[@IndRepair]

Appreciate that! Thanks for watching!

[@Vo7tz]

I do nail gun repairs myself , good video

[@IndRepair]

It seems to be a lost art anymore! Thanks for watching!

[@Vo7tz]

@@IndRepair you’re completely right about that , I’m looking to take over everywhere I can right now & pick up as many guns as I can. Wish me luck 🍀

[@IndRepair]

@@Vo7tz Good luck to you! I think you will do well!

[@Vo7tz]

@@IndRepair 7 months later & im still doing them :)

[@IndRepair]

@@Vo7tz Awesome news!! Hows it going? What brands mostly?

[@Roofer929pei]

Is the piston o-ring that comes in the kit the oversized one or did you get that seperate?

[@IndRepair]

It comes in the reliability provin kit

[@rsz90182]

I have two and they still work. I oil them after every use.

[@IndRepair]

Amazing nail guns!

[@philliprowell6588]

I THINK YOU KILLED IT

[@IndRepair]

Appreciate that! Thanks for watching!

[@garyandrews4069]

Do you have a good source to purchase the silicone grease CHEMPLEX 710 or a good alternative. Amazon’s price is to expensive. Thanks for the video.

[@IndRepair]

@@garyandrews4069 We have been using Reliability Provin medium weight silicone grease even since they came out with it. It is part number CM-PP-017. I would call and see if you can order from them directly

[@brianpaproski5839]

Nice, I wanted to make one for the same reason. Never got around to it! It wouldn’t have been as in depth as this either. Good job thanks! I didn’t know the reset thing at the end 😅

[@IndRepair]

@@brianpaproski5839 thanks for watching!!

[@brianbrown600]

Great video. Learned a lot. Where do I find the rebuild kits?

[@IndRepair]

OEM kits are obsolete but the o ring store has them available at www.theoringstore.com/store/index.php?main_page=product_info&products_id=7768

[@saulr313]

Did video helped me replace the piston. I didnt know how to take it apart let alone putting it back but after putting everything back and plug it in, air started to come out by the trigger. Any idea? It wasnt doing it before

[@IndRepair]

Likely needs reset or has a pinched o ring. I believe I show the reset procedure in the video

[@saulr313]

Forgot to reset it, and now, after resetting it, it's working a whole lot better 👍

[@IndRepair]

Awesome job!

[@ryanwilliam129]

Just started my second gun repair on this type of nailer. I have a broken spring on the feeding mechanism. Where can I find one of these? Thank you.

[@ryanwilliam129]

It’s the same feeder spring that was broken for you. Where can I buy a replacement feeder spring? Thank you.

[@IndRepair]

@@ryanwilliam129 If you need the feeder spring the part number is 877761 (877-761) ( amzn.to/3Rcpud9 )

[@ryanwilliam129]

@@IndRepair you really are awesome thank you

[@IndRepair]

@@ryanwilliam129 glad to help!

[@ryanwilliam129]

I have rebuilt the gun completely and I have a fast hard leak out the back of the gun. I feel the small cup stopper in the back mechanism you didn’t remove is leaking. I taped around it’s circumference the tighten it’s seal, and the leak slowed. I checked my other gun and that cup is also loose on it. Do you have any recommendations for this. As you have seen I’ve been working on this for a while. The quicker I can get these fixed is the sooner I’ll stop bothering you. Haha thanks for being there.

[@marcorodriguez4436]

I have a metabo roofing nailer, it still nails but leaks air on the back of the head...could you help me out sir..

[@IndRepair]

Probably something stuck in the rubber bumper up top or the orings need replaced

[@funnyharleyman]

Anyone know the function of the small set screw below the trigger plunger? Nothing in the manual…

[@IndRepair]

It controls at what depth the trigger safety is pushed

[@timothycoulter2848]

Would a harbor freight roofing nailer be worth rebuilding? Thanks

[@IndRepair]

No, they don't sell parts (at least every one I have called on)

[@kevinduarte8617]

I did everything that you did in this video replaced all the o rings and gaskets and when I plug in the air hose, air just starts coming out from the exhaust. any idea what’s going on?

[@IndRepair]

Many times it must be reset before using after a rebuild. Open door, push safety in and fire to reset. If that does not work you likely have a missing or pinched oring

[@kevinduarte8617]

I tried that many times but didn’t work! I’m gonna take it apart one more time. Thank you anyway

[@IndRepair]

Glad to help, let me know if it does not work. An OEM kit was used or an aftermarket? Many times the aftermarket kits are junk. The o-ring store has these kits available online for a great price

[@jameshendrix8217]

@@kevinduarte8617 your cylinder is stuck down. get a rubber mallet and hit the top of the head under the cylinder springs back up and seals against the head valve.

[@ryanwilliam129]

Hello. I am following along disassembling the gun. At 4.25 you said not to take out the driver assembly. I took it out too soon and it looks like that little plastic piece you mentioned is slightly broken. Do you have any suggestions for this? Thank you.

[@ryanwilliam129]

Ok, update. 6.30 you showed that small plastic piece that would rip if you pull it out the back. I pulled it out the back and ripped it. Do you know where I can get this part? Thank you.

[@IndRepair]

Find them on Amazon at amzn.to/3zCEa04

[@ryanwilliam129]

@@IndRepair You rock man.

[@ryanwilliam129]

@@IndRepair Any O rings that are in tact, am I fine to just place back in there? This way I'll just buy O rings that are visibly damaged. Let me know what you think.

[@IndRepair]

@@ryanwilliam129 You can, better to do it all but will likely still work long as they are not too brittle or worn

[@manuelcabrera2404]

Why does mine leak air from the back top side where the back protector piece is. A lot of air

[@IndRepair]

Have you just rebuilt it? Did you reset it?

[@manuelcabrera2404]

Yes i just rebuilt it i took it apart again and repeated the process shown in your video and works perfect thank you. Roofer from Georgia

[@IndRepair]

@@manuelcabrera2404 Awesome job!

[@59whoule]

Could you possibly give me some advice? I have a Metabo NV45AB2 nailer that is firing without the nose being depressed. What would cause it? What do I need to do to fix it?

[@IndRepair]

I would check out the trigger parts and the head parts. One or both these areas has bad o-rings/rubber/plastic parts

[@richardlahr7586]

nothing mentioned about replacing the Head Cap, the black pad is broken. you can get replacements for that and exhaust valve but cat get old out ?????

[@IndRepair]

Not sure what you are asking about? The black pad was damaged but not beyond working order as shown. Easily removed or replaced if you take the top bolts out

[@AndresMedina-d7p]

I rebuilt mine and it’s not feeding nails😢😂

[@IndRepair]

Did you get the lower o-ring replaced at the nose? This being bad will stop nail feeding

[@barrysmith8193]

After watching this I’ve decided to just buy a new one. You may know what you are doing but the results of the tear down ended up a jumbled pile of parts that had no organization or logic of reassembly. Thanks anyway.

[@IndRepair]

Rebuilding is not for everyone thanks for watching!