Slide Problem

The only trouble we've had with ours so far (besides the approaching trouble with the track) was a build issue. The screw that held one of the motors was installed too high. The screw prevents the motor from lifting up. The motor has 4 steel pins that stick out the bottom and engage in 4 holes in the body of the mechanism and prevent the motor from being able to rotate rather than turn the driveshaft. In my case, the motor was not fully seated although the 4 pins were still sufficiently engaged to perform their job. What wasn't kosher was the coupling was just BARELY engaged and after 3 years of use wore enough to start slipping. Luckily this was just as the very top of the coupling. It began to make a loud popping noise and the slide jammed. After taking it apart and determining what was happening, I was able to lower the motor into the proper position (there was plenty of 'meat' left in the coupling) and replace the hold down screw in the correct lower position. All is well now until I need to replace the track.