Full teardown and repair of a new Bosch GSH 11 VC demo hammer, first time serving one. 

Damm, new video dropped and i have to go out after only watching the first ten minutes. It will be a midnight treat for me later tonight. Bosch and Makita seem to have market sown up for these type of hammers over the last 40 years i've been working .

Hello dean uncle I am from India. My father also does the same work. Your videos r full of knowledge.

this is what years of experience looks like.....

Well thought out and executed Dean, always nice to see you work on a machine you haven't worked on before. I knew with your expert eye and knowledge that you would have this (upside down) beast up and hammering again no problem. Keep em' coming Dean, great work.

112k in subscribers well done Dean. That demo hammer is really built to last. Probably it's first service and she lasted 12 years which is testament to the Bosch hammer's build quality.

I have watched plenty of your fixes and service uploads, Today I pulled apart a (PRO tm 18v) rip saw I was given a few years ago it's a cheap thing and would not run even after I charged both batteries. After a clean and a little tab bending the thing is back to work, thanks to the confidence I gained watching you. Many thanks.

I kinda like the design with the motor part on one side and the mechanic part on the other, being able to work on whatever side you need to be for a fault. Thanks for the full stripdown, even though I haven't seen this one comming in for repair either.

I watched the whole vudeo without batting an eyelid nit to miss the placement of any part.Great job Dean.You know why a part is made and that majes your skill show up everytime.

Quality work. A definite A. As my old instructor used to say A is what you get when everything goes together and works as required. A+ is when the unit gets disassembled by an engineer to validate all the work. In other words, strive for the A+ knowing that the perfect repair does not exist. Everything that I have ever fixed always had a time, money, material and is it worth all the above to do. 😊

If dean has never worked on a tool , once he gets into it, it all comes back to memory

Funny, I’m watching this with a friend so when reassembly starts he says “how the heck can he remember where everything goes?!” “ Didn’t he say he never saw one of those before?!” “On a good day I’m lucky if I can put a few smokes back into the pack if I drop my cigarettes and some fall out!” I’m dying over here lmbo! Nice work as usual, thanks for taking us along…✌🏼

Always makes me smile when you have your hands deep in dirty thick contaminated grease, yet the the clean grease gets spread with a paint brush. Great vid again as always.

Thanks Dean,I’m usually out for a pint a bit earlier on a Friday, but I was 1:07:30 minutes late tonight, great video

It must be some machine, if that's the first 1 you've serviced, and it's a 2012 model.. That says a lot..

You should do some 'That's her' merch.

What a wonderfully complex whacker!

That big washer with the half circle lugs on that the bump sits against you have installed it in the wrong direction the half circles face the longer part of the pistons cylinder, I watched it back before it was disassembled.

Hi Dean. A trick for fitting lip seals. Use an old fairly long o'ring put it thru the inside of the lip seal and you can roll it round pulling down past the upper seal grooves down to the bottom groove. This also protects the new seal from damage which a screw driver can do. Hope you understand what I mean.

What a machine. Wow..

An important part was installed upside down, compare 18:32 with 41:32. The round part with the two 180 degree offset lugs that struck through into the rounded grooves in the tube, that part is upside down. Otherwise an excellent job as always!

Dean Terrific video. Everything about this hammer makes it look like it's been on steroids. The key distinguishing feature for me is the size of those retaining pins in the hammer tube - normally about 6mm dia in other Bosch rotary hammers - these ones about 12mm ! It was clearly designed and built to do a lot of work and to last. Great job. Best regards

I don't know about you Dean, but your channel is ripe for a hand cream sponsor like Okeefes working hands - You're hands must get absolutely battered despite you sometimes having gloves on. Thats a monster of a machine - 23J of impact for about £900 in the UK. 40v XGT content come on the lads in Donegal demand some 40v kit in the shop. Thumbs up

Bravo what a job

Hi, your videos are better than Netflix, but in this one, you made a mistake with the placing of the washer with ears at 18:15 vs 45:01.

Fine machines these Boschhammers.

Good work, Dean. That's one helluva tool!

New circlip pliers

Love the speed cleaning

stupendo lavoro il migliore visto del genere complimenti nel tuo lavoro sei un artista grazie mille per condividere con noi quello che fai ,ancora un grazie e ciao

You did very well, well done

I crack myself up every time you throw the parts on one pile and I wonder how the heck you get that pile back together. ha ha I remember when I was a kid I had always leftover screws

Well done for the first time. Service the next one will be faster. #That‘sHer

Hey Dean, Pos. 54 Control Disc was assembled the wrong way round, this may cause the perforated ring (Pos. 36) to fail, doubt it’ll cause damage to the hammer as its plastic but its just an observation for the next one. Ps. keep up the amazing vids, love watching you and learning at the same time :)

You were great as always

"Never worked on one of these machines before" immediately starts throwing screws😂

Perhaps this tool was being used horizontally in a wet trench. So it's clogged with all the grit & grime it was working in. It's a heavy hammer, without being far to heavy to work horizontally

Those metal fins on the aluminum body are interesting. I don't think they're for heat exchange, looks as though they are to transfer impact energy away from the bearings. And possibly the handle? Pretty cool. I like that the power cord goes forward too, so you're not always kicking it around.

Nice job well done

Great video Dean Have you got a long for your reversible assembly driver bits please?

Hey Dean, I found those seals will work again if you leave them for a day or two to 'dry out' or if you put them in the freezer.

Why the brushes looks okay when then machine has clearly done a lot of work? Have they been replaced before?

Hi Dean, greetings form Czech Republic 🇨🇿 love the video as always 😊. I'm a mechanical engineer, so it's interesting for me to see how these things are constructed and how they are then repaired. Just one question, i was just wondering if the two lip seals on the striker should be facing the opposite way to each other. So that the first one is facing out of the hammer and keeps the grit out, and the top one facing in and keeps the grease in 🤔 ?

sum amount of cleaning there dean 😂

"look at the size of that, thats huge" thats what Dean said

Thats a big boy

I somehow don't think I'd ever attempt to fix something that complicated. I think changing brushes or a plug fuse is my limit.

Thanks men for video ❤

Hi Dean i am not sure you put the seals on the striker correctly. As one of the lip seals will keep the grease in, the other outer one would be put on backwards to keep water and debris out, not saying i’m correct but i have seen hydraulic pistons do this

Hi Dean, amazing video as always. I would be the last person to comment on the Master's work but, seeing you struggle with that c clip, could you not compress the rubber bung with two vice grips, one each side to make removal easier ?.... just a thought 🤔

Hi Dean, What grease do you use for the sds is it ngli 2 or 1

Hi Dean you did a review video on nut drivers a while ago, any chance you can do the same for cordless grinders 🙏🙏🙏

Put the O rings and the seals on the striker in reverse

Hmmm wonder would kero work in an old dishwasher without an explosion

Good video and on first one every one makes a mistakes, sorry I don’t want to be a smart guy but easier way is to put steel washer and the spring in the housing first after that hammer pipe , for the hammer and pistons you can put it if you like at the very end, and maybe u done it right after video but in video you had placed that control disk in opposite direction

What is your opinion on the Bosch RH540M hammer?

Dear Lord!!! Look at the size of that crank gear!!!! Mighf as well be the flywheel on my pickup truck

How do you remember where all the part's go Dean

Every thing is heavy duty metal. And then a plastic piston? ??? Is it because that only component thats moving and they want to reduce the mass?

Chock full of Winnit Paste!!!

Are you sure it should not be 3 o-rings on the striker? According to the parts diagram it should be 3x 1 617 000 756 o-rings 🤔🤔