Rotary hammers are not easy to service and are costly to play duck duck goose with if you're not familiar with them. I would recommend bringing it to a local reputable shop for service.
Please see the link below to locate your closest Factory Service Centers. The technician will be able to better assist you with repairs. DEWALT com
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
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.
SOURCE: I have a makita hr2455x rotary hammer drill that won't hammer
you need to get that service,
the grease causes the hammering.
and probably too much pressure was applied
to it.
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