Moin, I have a lifting platform of Ravagliali, spindle platform with chain running down, 6 weeks old the part. I changed all the longitudinal handlebars at a 98 Grand Cherokee, which are tightened only when the car is fully on the wheels. So high the box, 1. longitudinal handlebars out, new ones in, screws hand-tightly tightened, cars dropped off, then trolleys up again, next handlebars etc… With each release the car moves something, after the 3rd time it was so far moved that I had to drive him in again, the arms of the stage were no longer enough, he went forward to the left or back to the right, true something of both. But it doesn’t matter if I have the automatic on “N” or “P”. What could this be? Tomorrow the customer service comes, there is still something in the wrong, no idea if it is related to it, the following: This is a 3.2t stage, the jeep weighs almost 2t, you lift the car, no matter if 10cm or 1.50m, stops the lifting, it thinks differently s and wants to continue up, rattles and shrugs and twitches it powerfully, the pillars trembl accordingly, you have to let off at least 10cm and then drive up again, then it runs without problems, is also not in the sense of the inventor! I had the stage set up, actually I don’t think that the mechanic has made mistakes, but can and doesn’t want to exclude it either, but that’s not my problem… I would appreciate it of course, if that was all about putting the stage together If it were to hang, two birds would be with one stone.