Hi, i recently purchased this unit from ebay but wasn't working.
When i opened it, the gear came off and i can't recall how they fitted.

There are three loose parts as noted in the diagram.

I had a look at the parts diagram from Bachmann website but am unable to figure out how to they suppose to fit in.

Hence appreciate if you have a diagram or can help me with it.

I tried asking local hobby shop here but they were unwilling to assist with G scale train

Thanks.