bis188

Hi there, I am new to this forum ... I recently acquired the bridge set 3774 (pre-owned), immediately I found the train does not go through the bridge, ie: stuck on both the incline as well as delcine1/2 on the bridge. In another word, it won't go thru. I had brand new battery and the wheels are clean free of dust or hair. Has anyone experience similar or any tricks and technique to make it run ?? Cheers ! -D