Hello everyone
I am a brand new member to the Euro Bricks community having been a long time browser of the site. I decided to become a member recently due to the failure of one of my sets improperly functioning. I own the Technic Crawler Crane (42042) and have thoroughly enjoyed that set. Just recently it has developed a problem no one can resolve. For some unknown reason, the functions involving moving forwards and back, as well as lowering and raising the boom have started to struggle drastically. New batteries solved nothing, no gears appear broken, and the motor has good torque still. Yet when I try the functions it is clear something is wrong. The turning of the body and the lowering of the claw appear to be fine. I am hoping that someone can help my problem as this set is one of my favorites and it is now discontinued. If anyone can help it would be much appreciated!! Thank you for your time.
Here is the link to a video showing the problem:
Regards
Max