Trouble shooting my coin mechanism on ideal 55 slider

[Nesbitt slider]

Hi there
I hope I am in the right area for my question?
I recently picked up a ideal slider machine at a auction the badge on it says the model number is A55B I tried the coin mechanism on it and the dime goes in just fine but the nickel always wants to follow the dimes path I was wondering if anybody on here might know what is wrong or a picture that might help me see if I might be missing parts.

[johnieG]

Is it a 10-cent or 15-cent price mech?  is it set up to accept either 1-dime and/or 2- nickles?   info is important... a picture of the inner works of the slug-rejector will help.. don't be vague in describing the problem..

now if you'll excuse me, I have to go see some guy about a thing & we're meeting at a place.