Direction of Rotation

ditting grinders MUST TURN COUNTER-CLOCKWISE. If the grinder turns clockwise, the ground coffee will not come out and WILL CLOG the grinder.

To check for direction, turn the machine on for a moment and then turn it off. As the motor is slowing down, look down through the hopper base opening at the turning nut, and make sure it is turning counter-clockwise.  If it is not, do the following according to your grinder model: (For safety, be cautious when looking down into the hopper when the grinder is turned on. Make sure no article of clothing, hair or anything else will fall into the machine or accidentally get caught in the machine. As with all equipment, use caution and common sense while operating or performing maintenance procedures).

Models 804 / 903 / 1203 - 110 Volt Application Grinders

This is needed ONLY if a service person worked on the base wiring and did not wire the motor properly):

From the motor, there are two sets of wire going to the base terminal block. You must have an Ohmmeter to check the resistance of the pairs of wires.

One color with the lower resistance is the primary winding.
The other two color wires with the higher resistance are the secondary motor wiring.
Swap the two secondary wires, and your rotation will be reversed. This needs to be done only once for proper wiring of the grinder.

Model 1403 - 220 Volt, Three Phase Application Grinders

This is needed EVERY TIME you plug the grinder into a new outlet. The electrical configuration of the outlet depends on the wires coming from the power company's transformer, and you must check and correct for rotation every time you move the grinder to a new three phase outlet.

Open the electric plug of the grinder. You have four wires: a green wire (ground), and three other wires (usually one black, one red, and one white).

You can take any two of the three wires (NOT THE GROUND GREEN WIRE) and swap them.

Make sure the screws are tight over the changed wires.
Close the plug and install the screws.
Check the grinder for rotation.

If you have any problems, consult your electrician or call ditting directly at 818-247-9479.