Bosch hammer electric Hammer Jack is losing power and shutting off

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: Bosch demolition hammer oozing grease/oil.

Look around there for some O rings we have had this same problem with some of our Bosch hammer drills, and they usually replace a set of seals around the nose of the tool

SOURCE: Bosch GBH 2-20 SE hammer drill stopped working

hi

check the cord and the switch to have continuity,the wires,the brushes,the rotor and stator.

regards savumihai71

SOURCE: is there any maintenance I can do on a Kango 950 Jack hammer

Ureythn GE00 is madr by Fuchs in Germany - see their website.
Darina is made by Shell - see internet for comparable grease

SOURCE: How do I drain the gear oil from a Bosch Brute

Brute hammer uses special grease sold as service kit. This kit contains enough grease to lube hammer and replacement bolts that hold springs along the bottom. Check www.toolpartsdirect.com for parts and kit. Remove the lower half (tube) of hammer, also remove three bolts that hold springs and remove assembly from tube. Wash out old grease. Grease will be oil-like only when hammer is very hot, otherwise grease is paste-like. Good luck.