Quote Originally Posted by Boyan Silyavski View Post
I have same same, they just have added collar. Now its not working properly and can not find the reason why. Sometimes works, sometimes not. Open it, dissassemble it. Its clean all seals on their places. Close it. One time works, one time not.
Upgrade it to something like this then, it should fit well with your beast...

Click image for larger version.  Name: jackhammer.jpg  Views: 280  Size: 4.7 KB  ID: 27397