Mills 25 Cent Lever Question

[Marine6619]

Me again. When I pull the lever of my Mills 25 Cent machine it pulls very hard and makes a "thunk." This is a reproduction machine. If anyone has a reason why this is occurring and a possible solution to make it pull smoother, I would appreciate the help. I have attached a picture of the machine. I also attached a picture of the jackpot lever that I forgot to include in my first message.
Thank You,
Dan

[radiorich123]

Looks like all the payout slides are not resetting.

[Bally Bill]

R Rich is correct maybe a jammed coin in the slides,did you cycle the mechanism outside the case using large screwdriver to observe the movements

[Marine6619]

Thank you for the information. I guess I better purchase a manual.