I recently purchased a rail king triplex at York. 30-1645-1. The issue is when it is coupled to a train the rear coupler tends to pull down as it's running which, in turn, lifts the coupler of the fist car until they uncouple. The coupler is spring loaded which allows this to happen. I see no adjustment screw or method to fix the issue. Has anyone else experienced this? Any suggestions would be appreciated.
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