If you find out why they're rejecting (speed, weight, thickness, diameter), you can then adjust that part of the mech to be a little more forgiving.
You will need to identify, first, why they're being rejected.
(Topic ID: 197179)
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Quoted from Terry1:It seems to reject at random!
It may reject(coin) it once and then accept it!
They coins are not getting stuck. They either fall through to the return
or work.
I have yet to find a coin that is always rejected!!!
You need to take it out, and repeatedly put coins in until you have some reject, and then learn why.
The basic operation of a coin mech (mechanical, not an electronic model) is -
- The cradle catches the coin. Too large diameter, and the coin won't be cradled properly. Too small, and the coin will fall through.
- The cradle rotates, and sends the coin down a chute. This path has one of two magnets in it. Magnetic coins will get stuck here. The magnet *usually* is also a set width apart from the back wall of the channel - coins that are too thick will get stuck. Coins too thin will either fall off the path, OR, gain too much speed.
- The coin then falls on an adjustable pin. Given the speed and weight, the coin will fall into the Accept path, or to the Reject path.
Usually, if it's hit and miss, like in your case, then either-
(1) The magnet or thickness check isn't retarding the coins enough, OR
(2) The pin isn't adjusted properly, and valid coins aren't gaining enough speed to fall into the Accept side of the pin.
Quoted from CactusJack:The item you highlighted appears to be a "string cutter". It's an add on part that should not effect the coin in it's travels. It is only there to snag a thread or fishing line if they are stringing coins.
That older nickel mech appears to have a fixed bounce test (lower "kicker" not there) and therefore the magnet gate may be the only item to effect coin speed.
Agreed - I don't see an adjustable bounce piece on that mech.
@op can try adjusting the screw above the magnet, visible in the first pic - but be very careful. Mark where it currently is, and make VERY small adjustments. (Start with tightening the screw - making the gap larger to give the nickle more speed.
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