So I've recently built model B from scratch (taking everything apart and not using anything from model A) of Lego 42043. And after I finished itI noticed that my pneumatic pump is not working as intended, it stutters and then stops. I though it may be some pipes in crane that is blocked so it cant pump, but no everythings fine, then I rechecked gears and loosened them so they make as little friction as possible yet nothing changed...
In model A the pump is going so fast even when its not pumping air to the crane, but in model B (the one I built) it cant even pump for 2 sec when connected to crane.
So what im asking is, has anyone gotten this problem where in model B the air pump is not working as intended and is there a fix without rebuilding the whole trailer?
