I had the same problem with mine, the only option was to pull full force and it came loose. After inserting it again came stuck. Once again pulling it out was hard. Then I sprayed vaselinspray in the contactslot and things went smooth afterwards. I hope to help others with simular problems.

I hope you've figured this out by now. I have a different machine but had same problem. My machine is a 1987 IGT. It may have a similar hopper layout to the one you have. A lot of effort with lights, cosmetic mirrors, etc. Revealed my problem. You may have a similar issue. I noticed that as I pulled out on the hopper, I could see wires moving slightly behind it. That should not happen, of course. This electrical plug connection is completely concealed when you're trying to pull out the hopper and it was a long process to determine what was going on. The hopper would move out about 1/4 inch and stop. My connector has six hefty spades and it was enough resistance to stop the movement of the hopper. I tried to force it with moderate pressure at first and had no luck. I decided not to force it, which was probaly a good thing. Using lights, small mirrors and an endoscope, I eventually saw that half of the face place was loose, binding the spades and preventing movement. With screwdrivers, a mirror and an extra set of hands, I was able to get screwdrivers (top and bottom) into the connection. Once I straightened out the spades, I was able to wiggle the connection loose and the hopper slid right out like it should. I surmise that driving my slot machine across country created enough vibration that it lost a screw in the face plate of the mating surfaces between the mudular plug, that links the electronics to the hopper. I thought maybe someone else would run into the same issue I had.

I have one a little bit more like that but later it's a bally s5500 slotmachine now when you take the coin hopper out you lift up with both your hands one on the handle one on the hopper it self and lift up and pull out

Open,,door,,but,coin,in,,,let,slot,play,,keep,door,open,,,keep,,,playing,in,door,open,each,time,hopper,will,have,no,coins,left