Repairing an old, made in the USA, Bosch GSH 27 demolition breaker hammer.

Don't get to many of these GSH 27 Hammers in for repair.
Amazing hammers they are, brilliant build quality. A nothing but steel and persicion.
Unlike a modern hammer with o rings for compression, this old beast uses persicion parts that seal themselves with only grease.
That is what the problem is here. The grease has dried up amd no longer sealing the hammer inside the piston.
wash out the old grease and install some fresh grease, and she's up amd hammering again.
#bosch #hammer #breaker #gsh27 #powertools #diy #fix #howto #tools #repair #tools #deandohertygreaser

[@kevinhewitt1428]

Tight initially, then starts sliding. Quote of the year.

[@leonardpaciora5039]

LOL

[@jasonbuckler190]

Beast of a machine. Given the age and lack of grease elsewhere, was sort of surprised the o-rings on the bolt were good. Very nice job!

[@Mcklusky12341]

Respect to the blokes who are lugging one of those around all Day!!

[@beachthor1]

Sometimes I spend my Thursday night watching an Irish guy rebuild power tools on KZbin and I’m okay with that

[@CrookedSkew]

I love that cronstruction yellow colour of the breaker. Takes me back to my childhood looking for Hymacs and JCBs. Thanks for another educational and fun video.

[@aspedersen1]

Now I want to buy one, just to make that Manly cup...cheers Dean! 🤔

[@Meteora125]

You always explain everything so well! Thank you!

[@kt38138]

That's the first time I've seen a Bosch with Stanley yellow.

[@nickkiosk5513]

im a 20yo apprentice plumber and we have one of these exact jackhammers im pretty sure its older than i am and damn is it reliable ive used it to bust out 1000s of lbs of concrete and it never fails to do its job effectively.

[@Panos_shoryuken]

Dean is the Conor McGregor of repairs ❤

[@smashyrashy]

Nah mcgregors a scumbag

[@Jetpac74]

Love the comment about the “manliest cup ever” 😂 That gives me an idea for a future video Dean - how about showing us some of your repurposing projects - made out of spare parts - do you have any to share with us? Keep up the great videos 👍

[@tdotw77]

8:11 "Manliest cup ever!" Nice one Dean! 😄👍🏻👌🏻🛠️🔧🔩

[@dodgyjpt]

More knowledge & great content as always looking forward to the next video to drop.

[@AnthonySmith-hr2kp]

Very nice job Dean. Pretty sweet!!

[@gregj7916]

When stuff was built with durability & repair in mind.

[@BufanMuayThai]

The changes that has been made to this model, compared to the old USH 27 and the new GSH 27VC when talking service etc. is minimal. Oh… and if you want to talk about how things were in them good ol’ days, then the reference would be the USH 27 which look identical to the GSH 27 and for except a few parts, is identical. This Yellow GSH model, was in production all the way up to the late 2000’s But, again, the yellow GSH27 and the blue GSH 27VC is all as strong as ever. Doing maintenance and service is same same. If anything, the blu VC is run better during use. To be fair, the GSH 27VC is a better hammer than the old USH27 and the GSH 27 in all fronts, I can promise you. Does this goes for all power tools, absolutely not. But the 27 is still going strong.

[@user-zi6cq5of4c]

Got a bit of a workout with that one Dean

[@Biela2008]

Holly...that's a big boy!

[@Drottninggatan2017]

Ha! The manliest cup ever. You don't even have to cut it down, that little hole in the side just adds to the challenge of drinking.

[@markojuros6533]

Well done, nice video.👍👍👍👍👍👍

[@slimshady6718]

Awesome 😎

[@StarlightStream]

The manliest cup ever had me cackling 😂

[@jamesriordan3494]

Ok, that piston is mental

[@garywheeley5108]

They were a great tool kango used to make a 2500 and a 1800 aswell

[@wotnoturbo]

Those hammers need to be stored upright, if you lye them down with the chisel slightly higher than the body the hammer piston can slowly slide up into the bore and get stuck in by vacume & can be very difficult to get out, bosch sell an overhaul kit with tacky grease & o rings etc, decent hammer.

[@jzrgrmm]

12:29 That's what she said.

[@rudierebara7593]

The lightest use to be. A machine mate.

[@darylhudson777]

Back in the 80s I used a jackhammer like that but maybe not that brand but I was also the guy that would use the 8 lb Sledgehammer to bust a concrete Etc

[@robertrada4783]

Didn’t even realize they did hammers here. I remember they had a whole ass factory just for drills, went through that phase with Skilsaw and had one or more factories from an acquisition (was it a Stanley power tools operation?). But presumptions were always Switzerland for Jigsaws (now Hungary) and Germany for hammers.

[@tooltruckpirate]

What brand/type of grease are you using?

[@fraserb2]

Just sold one of these £350 👍🏻

[@brucestorey917]

Did you need to use any replacement parts? O-rings, etc.

[@michaelfairchild]

Last thing I saw "Made in USA" by Bosch is the selfcentering bits which Ive bought, since you cant get them normally in Europe in metric.

[@daverichmond2846]

Crikey. Ten minutes hanging on to that thing and say goodbye to your fillings,..😮

[@vadimalexandrov3944]

Great video! Maybe you can recommend best garden tiller brand?

[@MichaelWilhelm-tf8vy]

Isn‘t the chisel locking lever mounted different facing up when locked?

[@capk387]

Omg hope there is no one downstairs 😮

[@cliveatwood4752]

Seen smaller hammers on mini diggers.

[@iraboruyi9378]

Seeing how much things has degraded, when tools were built to last with less compunents, compared to the junk we're having this days. No rights to repair and made to break in few years. Manufacturers are Focused on performance than durability. 😢😢

[@leonardpaciora5039]

Dean, what grease are you using in it?

[@deandohertygreaser]

Bosch hammer grease

[@tooltruckpirate]

@@deandohertygreaserdoes it have a “generic” equivalent? - the greases sold under the tool brands are a tad expensive. Just paid 20 quid for a pint of Makita grease.

[@jacksonroad9263]

Was wondering why not use the air compressor to get the hammer out?

[@deandohertygreaser]

Because of the risk of dropping the piston or hammer. One drop and they are scrap

[@kevindavis7868]

What is in this yellow bucket? Just concrete?

[@user-zi6cq5of4c]

@@kevindavis7868 It’s an old transformer Dean uses it to test the hammer on a tool Better than knocking lumps out of the floor

[@BurnzyXXD]

[@moulahcen9949]

،👍👍

[@DH48635]

HIT THE LIKE BUTTON!!!

[@prasadvn524]

That was a simple robust tool

[@marcusweston4524]

Hi Dean - What is the grease you use which you apply with your paint brush?

[@user-hb2kh5pf8f]

Same thing i want to kno

[@user-fz6vb1df1w]

Too many adds

[@Grantrude]

That made in USA quality