Question about Bosch 1224VSR 7/8" SDS-plus Bulldog Rotary Hammer

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Drill won't hammer

It sounds like it is hammering but when i put pressure on it it just drills

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

comax
  • 154 Answers

SOURCE: Bosch 11247 Hammer drill works

Usually replacing the o-rings on the piston, striker and Impact bolt will solve any hammering issues. That is considering there is no damage to the mechanical parts in the hammer mechanism.

Posted on Apr 13, 2009

comax
  • 154 Answers

SOURCE: i have a bosch rotary hammer 11245evs and it was

They are filled with a special grease that comes from Bosch. It sounds like the impact bolt or the striker pin in the unit are not moving the way they should. These are the pieces that work together to create the hitting action. About all that can be done now is the unit has to be dismantled to get those to pieces moving again. Bosch makes what they call service packs for all thier hammers. They have all the o-rings and grease to get your hammer working again. A Bosch service center can supply you with the kit. Ask for P/N 1617000225, or they can take care of it for you.
Hope this helps

Posted on Apr 16, 2009

rowdy45176
  • 2176 Answers

SOURCE: my hammer drill won't hammer.

when was the last time serviced?? If not recently then you would need to replace the o rings and look for other sticking/worn parts. Give me the exact model number and I will try and find you a breakdown and a rebuild kit. They are not that bad if you are handy with tools and take your time. Let me know

Posted on Mar 21, 2010

  • 10 Answers

SOURCE: I have a bosch hammer dirill that won't chip nor drill but motor run fine

Hi, have you tried the various positions on the front part of the gearbox behind the 'chuck'?
If so, then Im afraid it must go in for repair. These are not an easy fix and personally I would recommend you ask for a 'quotation' as it could be just something simple to do with the 'Gearbox' selector, but it could also be something a lot more serious within the Gearbox.
Good Luck & Best Wishes, John..

Posted on Jul 03, 2012

  • 885 Answers

SOURCE: hammer drill won't hammer

Without knowing which model you have: Most Bosch hammer drills use a plastic connecting rod to attach the piston to the rotating spindle. These are a common failure item and fairly easy to replace.

Posted on Jul 19, 2012

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Depending on the type of hammer drill you have, the noise should only be heard when you are applying pressure to the material you are drilling. Some drills have 2 bump plates that cause the hammer action. This is what causes the noise. It kind of sounds like the gears are stripped but the chuck still goes just fine. You do not need to grease this, it will make this noise regardless. However you may want to take a look at the gears and make sure they are ok. You may want to add grease if the old grease is broken down or there is not enough in the gear housing. Larger hammer drills have a piston and actual hammer. Such as the Bosch Bulldog series. If it is this type and there is noise when you are in drill mode there may be more serious problems.

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