User Manual - K-Ultra
Do not wash or soak this product for cleaning
Table of Contents
User Instructions
- Turn the adjustment dial ring to dial into your preferred grind settings. The dial pointer indicates the grind setting; the bigger the number, the coarser the grind size.
- There are 100 clicks in an entire rotation with a maximum total of 1.5 rotations. Each rotation moves the burr by 2mm, and each click moves the burr by 0.02mm / 20 microns.
- After reassembling the grinder, ensure the adjustment dial ring is calibrated correctly according to the calibration guide below or the tutorial from the blog.
- Refer to the grind setting tutorial post for different brewing methods.
- Pour the bean into the hopper from the top and turn the handle clockwise to start grinding.
Diassembly
Note: Please follow the tutorial step by step.
- Turn the adjustment dial clockwise to coarser grind settings as the burrs open up.
- Loosen the knurled thumb nut counter-clockwise while pushing the burr and take out the upper bearing cap and the upper bearing.
- Take out the shaft, burr, lower bearing cover and spring.
- Remove the burr ring unit and the adjustment dial clockwise from the grinder.
- Clean each of the parts with a brush and an air blower.
Assembly
- Turn the adjustment dial counter-clockwise to the tightest postion. Do not overtighten it and stop when you feel resistance.
- Turn the adjustment dial clockwise to coarser grind settings.
- Turn the burr ring unit counter-clockwise to the tightest position. Do not overtighten it and stop when you feel resistance.
- Put the components back in the right sequence: lower bearing cap (the raised edge side facing upward), spring, shaft and burr.
- Put the parts back in the right sequence while pressing the burr: upper bearing, upper bearing cap (the concave edge of the cap facing upward and ensure to put the upper bearing cap in the correct direction).
- Turn the knurled thumb nut clockwise while pushing the burr and stop when you feel resistance.
- Turn the adjustment dial to the zero settting and see if the indicator aligns with #0.
Read the calibration guide below if it is not aligned with #0.
Warning: DO NOT further disassemble or remove the following components:
Adjustment Dial Calibration
- You would need to either loosen or tighten the knurled thumb nut or the adjustment dial to calibrate the grinder.
- It is common for the zero point of the adjustment dial to be around two or more clicks away due to the strength you use to tighten the knurled thumb nut.
- We define the zero point as where the handle starts to spin with resistance instead of the tightest position. Please do not overtighten the dial to prevent it from getting stuck.
Instructions
- Ensure to calibrate the grinder step by step:
- Turn the adjustment dial ring counter-clockwise all the way until the handle starts to spin with resistance (the zero point).
- Ensure the central shaft is not loose or installed incorrectly.
- The grinder is well-calibrated if the dot is at #0 when the adjustment dial ring is at its zero point.
Read the following steps for calibration if you don’t get #0 for the zero setting.
- If the Dial Pointer is pointing at the right side of #0:
- Turn the adjustment dial ring clockwise to a coarser setting as the gap inside the adjustment dial ring enlarges.
- Loosen the knurled thumb nut counter-clockwise a little bit while pressing the burr from the bottom. Turn the adjustment dial ring counter-clockwise back to its zero settings and see what number (#) the dial pointer points at.
- Repeat this step or the next step until the grinder is calibrated.
- If the Dial Pointer is pointing at the left side of #0:
- Turn the adjustment dial ring counter-clockwise to a coarser setting as the gap inside the adjustment dial ring enlarges.
- Tighten the knurled thumb nut clockwise a little bit while pressing the burr from the bottom. Turn the adjustment dial ring counter-clockwise back to its zero settings and see what number (#) the dial pointer points at.
- Repeat this step or the step above until the grinder is calibrated.
Warning: The handle will not be covered by warranty if any part is taken apart.
How to fold?
- Hold the crank part near the wooden knob and push it in.
- Turn the handle clockwise all the way to fold.
How to unfold?
- Hold the crank part near the wooden knob and push it in.
- Turn the handle counter-clockwise all the way to unfold.
Precautions
- Ensure the grinder is never washed or cleaned with water.
- Do not wipe your grinder with solvents other than water and alcohol.
- To ensure longevity, keep the grinder in a dry location.
- Please follow the instructions properly for disassembly and reassembly, paying attention to the order of parts and their correct position.
- This is not a toy. Keep the grinder out of reach of young children to ensure their safety.
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