20 Most Recent Bosch Brute Breaker Hammer 11304 Questions & Answers

Lack of oil in the gearbox.

1615430015 is the number of 225 ml GREASE (no oil) Bosch 11304 0611304139 Demolition Hammer Parts

• till right upper corner of the drawing
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1 615 430 007 ordernumber for its grease http://www.powertools-aftersalesservice.com/public/boschprof/service?p_auth=Q4omr8aY&p_p_auth=LH4mLHxr&p_p_id=WSRP_bc93764e__6873__4b00__9a29__b331c9759da9&p_p_lifecycle=1&p_p_state=normal&p_p_mode=view&_WSRP_bc93764e__6873__4b00__9a29__b331c9759da9_wsrp-navigationalState=L0JPUy9QVEFTLVBULVNJUy1TaXRlL25sX05MLy0vRVVSL1ZpZXdQcm9kdWN0LURpc3BhdGNoO3BnaWQ9YmI5NWI3MGRjM2E3NzQxY2ExYzA0OGYyM2IzMGphOVNKVVBMO3NpZD1YZDd4RVh2aTVmOHk0eXhqVGpidDZuUnBTeFZDODdMNXg5OXl1dmxDbE1WckVMTDV4OTg9

Grease bosch order nr 1 615 430 001 225 ml for 1 service OR 1 615 430 007 1000 ml for bulk repair.

Maybe there is a interference suppression capacitor for radio supression near the switch have to only remove it . i do it by the most Bosch powertools because it made more problems than the purpose for which they are. The ultra short wave radio listeners are not much more today everywhere its DAB+ do not suffer

The armature AND electric field must together replaced to get a safe working again, and the defect will not repeat if it be shure have its operating hours on it and give a full service.

GREASE number bosch order 1 615 430 015 225ml

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It sounds like the gearbox oil is getting low. The GBH5 uses oil in the gearbox, not a grease - the grease is used for assembly only. The correct type is a PG-150 (fully synthetic gear oil). Unable to find it in small quantities, I now use PAG150 oil for automotive a/c systems, it's available in small bottles. As for quantity, no-one seems to know... I just fill to cover the big bottom gears.

what caused grees to round down chissel from bottom of tool

Check your brushes. The brushes on the Brute breaker have a spring loaded, non-conductive pin in them. When either brush wears down far enough the pin pops out and prevents damage to the expensive armature. If by chance the brushes are OK you may have to have your armature tested.