Hammering - Recent Questions, Troubleshooting & Support

ROTELLA #40 oil or any 40 weight oil

It may be the carbon brushes on the motor. Lots of help in the videos.

Bosch electric jack hammer Brute wire problem? = Answered

https://howtomendit.com > answers I have a bosch electric jack hammer (brute) its not running. I took it apart and the wires that connect armature to the motor I think thats

Carbon Brush Set [1617000425] for Bosch Power Tools

https://www.ereplacementparts.com > carbon-brush-set-... Jackhammer stop working. Remove motor cover. Pull out armature and brush holder out of coil. Replace carbon brushes. Put armature and brush holder back in ... Rating: 5 · ‎1 review · ‎US$27.43 · ‎In stock

Unfortunately, Kango has been out of business for many years and there are no parts available anymore. They were a great hammer, its a shame they are gone.

Question edited for full 'make model (what it is)'. Question moved to a Bosch SDS category. Clutch issues, parts and a video. https://www.google.com/search?q=bosch+rh540m+slipping+clutch+replacement ..

Lots of parts inside it. Repair videos https://www.google.com/search?q=bosch+bulldog+11255VSR+stopped+hammering https://www.ereplacementparts.com/bosch-11255vsr-0611255539-sdsplus-bulldog-xtreme-rotary-hammer-parts-c-128_1376_7448.html Better image https://www.aliexpress.com/item/1005002042848411.html?pdp_npi=2%40dis%21CAD%21C%24%203.81%21C%24%203.81%21%21%21%21%21%402101d1b116703544106556022e5b19%2112000018525198068%21btf&_t=pvid:5850845c-953c-45e6-aaa6-39cb556488d5&afTraceInfo=1005002042848411__pc__pcBridgePPC__xxxxxx__1670354410&spm=a2g0o.ppclist.product.mainProduct ..

Maybe a thermal problem in the electronic modul and also control the powercable on a leight tensile load.

short in wiring

Likely it needs new o-rings - there is no compression between the piston and hammer

kango 950 was the hammer drill version. Usually when they stopped hammering they were due for a rebuild. These units have a aluminum piston that rides in a steel tube striker. When the 2 rubber piston rings wear out you will get the described problem. The Kango's use a special tan grease so you cannot just yank it apart and replace the 2 rings with o-rings and grease. I had to rebuild 15 900 and 950's because the previous mechanic used the wrong grease. https://project21designs.com/kango-950-parts The link sells grease & rings.

This is an indication that the hammer needs service. When you take the barrel off you will see the striker. There is a piston inside the striker, when the rubber rings on the piston wear out you have the problem you describe. time to replace the motor brushes clean and regressed, make sure to use the correct grease, Check the backlash on ring and pinions. Don't put too much grease on the piston or it will stick and not strike. Good luck I forgot to ask which version. This is for the uk atlas coco, silver with blue or red handle

kango hammer ' Power Tools ' Gumtree Australia Free Local ...

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https://www.manualslib.com/manual/585142/Makita-Hm1214c.html?page=5#manual

notify bosch or dealer

please

Turmopol 20 HD Elektrowerkzeuge eBay

if the service light is on check this video, https://www.youtube.com/watch?v=kpcdYreqc5I

Contact the manufacturer/distributor to inquire.

Most likely it is the brushes - most of their models in that series have auto-stop brushes that push away from the armature when they reach a certain wear point.

Unfortunately, you won't find them - Kango was a great hammer, but the company has been gone for many years and there are no parts available. I would find a local repair shop that may have a different brand brush that is the same or bigger dimensions - by using a piece of 220 grit sandpaper on a hard, flat surface - you can sand them down to the proper size. It will get you out of a bind