I had one where the plunger had no rollpin holding the plastic part to the plunger
Maybe the top of the plunger armature that hits the ball is the problem, check that
Hobbit Easy Ramp Fix
For those who have stainless Steel Ramp flaps curling up.
remove the 4 screws holding the ramp down near the flaps
lift the ramp up about 1/2"
use a small piece of round dowell and using you thumb curve the flap back down over the round dowell.
Then insert under the ramp flaps a small piece of doublesided tape with the sticky bit up, non sticky down, pushed back far enough under the flap, screw back down and it only took 5-10 mins to do.
let me know how you go
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