Changing Grinder Burrs

Tools Required: Two screwdrivers, and possibly an adjustable (Crescent) wrench

UNPLUG GRINDER and remove the bean hopper. Make sure gate at neck of hopper is closed!

1. Push down grind adjustment lock and unscrew grinder burr carrier all the way out. The direction will vary depending on the brand of grinder you are working on. Some grinders do not have an adjustment lock, and simply use tension springs and a fixing screw to hold the grind adjustment collar.

2. There will be one burr on the bottom of the burr carrier you just removed and one inside the grinding chamber attached to the motor shaft. (Each burr is held in place with two or three screws). Using a flat head screwdriver, remove the screws from the burr that is attached to the upper burr carrier and remove the old burr – this is the easy one.

3. Removing the lower burr is a bit more complicated, as it is attached to the motor shaft and will want to spin. Using an additional screwdriver (or adjustable wrench on the fixing bolt), hold the lower burr carrier in place while releasing the burr attachment screws.

4. Make sure that you remove any coffee residue from the mounting surfaces of the burrs. Also clean all the adjustment threads in the burr carrier prior to installation. This is a good time to do a thorough cleaning of the entire burr area.

5. After everything is thoroughly cleaned, install the new set of burrs. Do not completely tighten down each screw at one time, make sure to alternate. Tighten each screw a little at a time until all three screws are tightened evenly. This will ensure the burr is tightened down equally all the way around to prevent any unevenness.

6. Replace the burr carrier by screwing it back in. CAUTION: It is extremely important that you use caution when reinstalling this part. Do not force the carrier into place, as you will damage the adjustment threads (an expensive mistake). If you place the carrier into position then thread it backwards, you should feel the collar drop into place and it should screw in much easier.

7. Once you have the collar in place and have screwed it in by a few turns then you can plug the grinder back in. With the bean hopper off and the power on screw the collar all the way down until you hear the burrs barley touching then turn back one full turn. At this point you should be about right for your grind and from this point you can begin to “fine tune” your grind.

Espresso Parts 600 4th Avenue Olympia, WA 98501
(800) 459-5594 Fax (360) 357-8895 www.espressoparts.com