Guide

Full teardown and repair of a new Bosch GSH 11 VC demo

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

#Full #teardown #repair #Bosch #GSH #demo

“Dean Doherty”

This is the first Bosch GSH 11 VC Hammer iv had in for repair.
So this is a full long video on how to do a full teardown and service on one.

#tools #toolrepair #repairs #powertool #makita #repair #diy #deandohertygreaser #powertools #dewalt

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36 Comments

  1. 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.

  2. 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.

  3. 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 🤔 ?

  4. 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

  5. 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 🙂

  6. 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.

  7. 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.

  8. 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.

  9. 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.

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