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Bosch 11247 rotary hammer will not hammer

Relatively new but passed warrenty. rotates, just won't hammer

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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

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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

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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

comax
  • 154 Answers

SOURCE: the bosch 11227e rotary hammer will not energize when

It sounds like the cord is ok as you have power to the switch. It also sounds like the switch is OK. These units have a governor on them as well. I suspect the governor because you indicated that the hammer will not come up to full speed. Beyond the governor, the only other thing to look at is the motor. You did say that you didn't notice any sparking so the motor sounds like it is OK.

In my opinion from everything you said, its the governor.

Posted on May 01, 2009

  • 5 Answers

SOURCE: rotary hammer won't rotate, hammers very good

If tool hammers brushes still good. Motor runs hammer action.
Take hammer/ drill switch lever off by removing small plastic plug in center with small screw driver.remove indicator handle off by removing #8 torx screw and lightly pry off. There is a pin and spring that lock tool into hammer or drill.Check for broken spring or binding spring and pin.If binding , clean and grease.

Posted on Jul 08, 2009

comax
  • 154 Answers

SOURCE: Bosch rotary hammer (model # 11230EVS) drill will not rotate

There is a clutch in the main spur wheel of the unit. These sometime begin to slip, on rare occasions they will slip to the point where the drill will not rotate. If you are interested the part number for this clutch is 1617000817.

Posted on Aug 06, 2009

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