Response from LEGO SHOP
December 11, 2019
Philipp, Customer ServiceHi there. The set is designed in such a way that the drill is driven by the right front wheel. The other wheels have no impact on the rotating of the drill. This is done to reduce the complexity of the build and make it suitable for the younger NINJAGO® fans. If you are encountering any problems at all with this set we would encourage you to have a chat with one of our friendly brick experts at LEGO.build/Service. We'll be happy to take a look at the situation together with you.