j-max-1zpresso J-Max Manual Coffee Grinder User Manual

June 6, 2024
1ZPRESSO

j-max-1zpresso J-Max Manual Coffee Grinder

1Zpresso.com
J-Max Manual Coffee Grinder

Expanded View

Crank Knob Crank Handle Knurled Thumb Nut Upper Bearing Cap
Adjustment Dial Ring

Upper Bearing Body

Burr Ring Unit
Lower Bearing Cap Burr

Grip Product color may slightly vary due to different versions.
Central Shaft Spring

Magnetic Catch Cup

Grounds Capacity: 40g (Depending on the bean type)

User Instructions

Scale Mark the starting point.

Adjustment Dial Ring

single rotation; each click moves the burr by 0.0088mm/8.8 microns

brewing methods.

clockwise to start grinding.

disassembling and reassembling the grinder.
Note: The grinders were calibrated when manufactured . To prevent the burrs from being stuck, please do not over tighten the adjustment dial. Do not turn the handle should the burrs get stuck; just loosen the dial and press the central shaft down.
Read the guide on the next page or scan the QR code for disassembly. Website: www.1Zpresso.coffee YouTube/Youku: 1Zpresso

Disassembly
Warning: Do not loosen the burr ring unit before step 3.
1. Turn the adjustment dial ring clockwise by around two rotations, press the burr and remove the knurled thumb nut counter-clockwise.
2. Remove the upper bearing cap and upper bearing.

3. Remove the the burr and central shaft, spring and lower bearing cap.
4. Turn the burr ring unit forward (reverse threads). Disassembling the adjustment dial ring is not suggested.
5. Do not clean the grinder with water. Cleaning with a brush and blower is recommended.
Warning:
Do not dismantle below parts any further since they were calibrated by tools.

The Burr with Central Shaft

Burr Ring Unit

Bearings

Assembly & Calibration
1. Turn the burr ring unit backward (reverse threads) to the tightest.

2. Turn the adjustment dial ring counter-clockwise to align the bottom edge of #0 with the top of the scale mark.
3. Put the components back in the right sequence: lower bearing cap (the raised edge side facing upward), spring, shaft and burr.
4. Put the upper bearing back from the top.
5. Put the upper bearing cap back (the concave edge facing upward).
6. Press the burr while tightening the knurled thumb nut to complete calibration. Note: The starting point might be different within ±10 clicks due to the strength you tighten the nut and dial.

Precautions
· Do not clean and wash the grinder with water. · Do not wipe your grinder with solvents other than water
and alcohol. · Keep it in a dry environment in order to extend its lifetime. · Follow the instructions of re-assembly, ensure to place
the components into the correct positions. · Keep the grinder away from children for safety concerns

· To prevent the knob from being damaged, putting the grinder and the handle in the case as above picture is suggested.

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