Coin counter devices used on MILNOR washer / extractors have gone through several changes during the years of production. This will explain the different styles used and how to set them.

1. We started with a mechanical ratchet wheel assembly. (Fig. 1) The ratchet wheel is advanced by a solenoid retracting a spring pawl to engage teeth in the wheel. This wheel indexed one step at a time until the actuating arm energized the start switch. This actuating arm was used to set the total number of coins to be dropped. To set it, you would lift the actuating arm from the wheel, and rotate it to the number shown on the wheel. The first version was made of pewter and used all metal components. The second style was made of high impact plastic with a plastic wheel. It was set in the same manor.

2. The next generation introduced the fully electronic counter board. (Fig.2). This was much smaller than the ratchet wheel design and has proved to be more reliable. To set the coin count on this board, you will turn off the power to the machine then attach jumper wires to the spade terminals. The wires connect from the common terminal to one or more of the six- (6) terminals. They are numbered 1, 2, 4, 8, 16, and 32, and are binary. You connect them by adding the numbers to obtain the count desired. Example: If you require 11 coins to start the machine, attach terminal 1,2 and 8.

3. Our next style is a refinement of the previous electronic board. (Fig.3). Here we are using DIP (Dual Inline Pin) switches to set the count. To change a setting, power off the machine, press the switches down on the side with the number printed on the switch body. Again, the numbers are weighted in binary. Example: If you require 11 coins to start the machine, press switches 1,2, and 8 down on the numbered side.

4. The current design is also an electronic board, a different design, but is connected and operates the same as the earlier electronic board. (Fig.4). To change a setting, power off the machine, press the switches down on the side with the number printed on the switch body. Again, the numbers are weighted in binary. Example: If you require 11 coins to start the machine, press switches 1,2, and 8 down on the numbered side.

DAD 02/22/2002