Greetings, fellow coffer-lovers.

How often that you clean your 1Zpresso manual coffee grinder? 
Proper maintenance could prolong the life of your grinder for a long period of time.
We advise customers to dismantle the grinder once a month to perform cleaning and maintenance.
The grinder could dismantle without any helps from the tool.

Here is a reassemble tutorial for the top adjustment mechanism of JX-Pro & JE-Plus grinder.
You also can find the cleaning and maintenance tutorial of the internal adjustment and external adjustment from our blog.
Below image demonstrating the re-assembly with JX-Pro grinder.


Step 1:

Take out the crank handle, holding the grinder with the non-dominant hand and the other hand to remove the adjustment dial by turning counter-clockwise. And remove the catch-cup.

JX-Pro grinder



Step 2:

Pressing the burr set and loosen the knurled thumb nut by turning counter-clockwise.

JX-Pro grinder
JX-Pro grinder



Step 3:

Take out the burr set by pressing down the central shaft. Collect the sliding column from the upper ring cap where the upper bearing and the upper bearing cap lying inside of it.

JX-Pro grinder
JX-Pro grinder



Step 4:

The upper ring cap can be taken out by turning clockwise. Attaching the catch-cup to remove the outer burr ring by turning clockwise. Note: the outer burr ring unable to remove without taking out the burr set.

JX-Pro grinder
JX-Pro grinder


Step 5:

Take out the pc lid by turn counter-clockwise throughout cleaning. Apply some strength to detach the wooden ball.

Clean it with the brush & air blower and be sure do not to apply water to wash it.

JX-Pro Grinder



The magnetic catch-cup of JE-Plus grinder could be dismantled in three parts. Remove the magnetic attachment ring by turning counter-clockwise. Turn counter-clockwise to separate the closed receiver from the open receiver.

Perform the step reversely to recover the catch-up.

K-Plus Grinder
K-Plus Grinder
K-Plus Grinder
Press to remove for throughout cleaning.


Step 6:

Put the wooden ball into the crank handle till you hear a click sound and tighten the pc lid by turn clockwise.

Turn the outer ring burr and the upper ring cap counter-clockwise to secure.

JX-Pro Grinder


Step 7:

Place the pieces in order to ensure the grinder works perfectly. The central shaft and the burr set fixed together, you need to put it back into the grinder. Before that, you have to place the spring then the bearing cap on the burr set.

Note: the spring is the conical shape in which you need to place the larger surface upward as the opposite of the smaller surface and the protruding side of the bearing cap consider facing upward.

JX-Pro grinder
JX-Pro grinder
JX-Pro grinder

Step 8:

There is a dot at the back of the sliding column. Place the sliding column (which connects the dot at the sliding column to the dot at the adjustment dial) inside the hopper.

Insert the sliding column into the upper ring cap, then the upper bearing.

Now it is a tricky part, you would notice there is a horseshoe shape appearing from the upper bearing cap.

The flat side from the upper bearing cap needs to match the flat side of the central shaft as well.

JX-Pro grinder
JX-Pro grinder
JX-Pro grinder
JX-Pro grinder

Step 9:

Pressing the burr set and tighten the knurled thumb nut by turning clockwise.

Free your hand from pressing the burr set, tighten the adjustment dial to zero by turning clockwise till you feel a resistance (do not overtighten or it hurt the burr set).

The crank handle unable to move dramatically means the grinder in zero settings.

JX-Pro grinder
Fine Adjustment Dial Design - JX-Pro | JE-Plus Grinder
JX-Pro grinder
  • JX-Pro Grinder
  • JE-Plus Grinder



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