Every Hot Wheels Tune-Up Tower fix, for the most part, simply requires a thorough cleaning of the electrical contacts, the treadmill pulley and the elevator drive belt mechanism. Although this will restore most of what ails a Tune-Up Tower, I found that the elevator mechanism can still be baulky, usually when going up and especially when carrying a car.
The problem centers on the brown staining of the plastic elevator belt. It’s some kind of oxidation, possibly related to sunlight, moisture and dust, and this stuff is slippery. Fortunately, I’ve come up with a quick fix for this elevator problem.
The answer is friction tape applied to the rubber drive roller. (By the way, the rubber drive rollers that I have seen still seem soft and useable. So, as long as it is clean, I don’t think the rubber part itself is the issue.)
Interestingly, you don’t have to wrap the entire circumference of the drive roller to get the elevator mechanism working. I found that a little bit of friction tape covering 1/4 to 1/2 the drive pulley would fix the problem. I suspect that this is variable and you may need less or more friction tape to get your Tune-Up Tower elevator working right.
Here’s a short video on this quick fix.
So there you have it. The 1970 Hot Wheels Tune-Up Tower elevator working properly with just a little bit of friction tape.