ShotPulled › Gear › Burr clean
Dismantle and brush the burrs: 1Zpresso JX-Pro
Before you start
- Tools
- soft brush, air blower, 6 mm hex key (some crank handles only)
- Supplies
- None listed
Warnings
- Never wash the grinder or clean it with water. Source: 1Zpresso User Manual – JX-Pro (JX-Pro S) (web manual)
- Take the burr set out before you unscrew the outer burr ring. Source: 1Zpresso: Cleaning Guide for the 1Zpresso Top Adjustment Grinder (JX-Pro S, JE-Plus)
- Go no further than these steps: the shaft and burr, burr ring unit and outer burr, and the hopper bearings stay assembled. Source: 1Zpresso User Manual – JX-Pro (JX-Pro S) (web manual)
- Do not overtighten the dial; it can get stuck. Source: 1Zpresso User Manual – JX-Pro (JX-Pro S) (web manual)
- Wipe with nothing but water or alcohol; no other solvents. Source: 1Zpresso User Manual – JX-Pro (JX-Pro S) (web manual)
- On a foldable handle, taking any part of it apart voids the handle's warranty. Source: 1Zpresso User Manual – JX-Pro (JX-Pro S) (web manual)
Steps
- Take off the crank handle.
From the manual: “Take off the crank handle”
- Unscrew the adjustment dial counterclockwise and lift it off.
From the manual: “Loosen the adjustment dial counter-clockwise to remove it.”
- Remove the catch cup.
From the manual: “remove the catch-cup.”
- Push the burr up from the bottom and unscrew the knurled thumb nut counterclockwise.
From the manual: “Loosen the knurled thumb nut counter-clockwise while pushing the burr from the bottom.”
- Take out the top bearing cover, the top bearing and the sliding column.
From the manual: “Take out the top bearing cover, the top bearing and the sliding column/screw column.”
- Take out the shaft with the burr, then the lower bearing cover and the spring.
From the manual: “Take out the shaft, burr, lower bearing cover and spring.”
- Unscrew the burr ring unit and the upper ring cap clockwise and remove them.
From the manual: “Turn the burr ring unit and the upper ring cap clockwise to remove them from the grinder.”
- If the outer burr ring is hard to grip, fit the catch cup onto it and turn that clockwise. Optional
From the manual: “Attach the catch-cup to remove the outer burr ring by turning clockwise.”
- Brush each part clean and blow the dust out with an air blower; use no water.
From the manual: “Clean each of the parts with a brush and an air blower.”
- On a fixed crank handle, unscrew the PC lid counterclockwise (some need a 6 mm hex key), pull off the wooden knob and brush both clean. Optional Only when: fixed (non-folding) crank handle
From the manual: “Loosen the PC lid by turning it counter-clockwise for a thorough cleaning.”
- Screw the burr ring unit and upper ring cap back counterclockwise, stopping at resistance.
From the manual: “Turn the burr ring unit and the upper ring cap counter-clockwise to the tightest position.”
- Refit in order: lower bearing cap with its raised edge up, then spring, then shaft and burr.
From the manual: “lower bearing cap (the raised edge side facing upward), spring, shaft and burr.”
- Match the dot on the sliding column to the dot on the upper ring cap, turn the column over and seat it in the cap.
From the manual: “Align the dot on the sliding column to the dot on the upper ring cap”
- Holding the burr up, refit the sliding column, the upper bearing, then the upper bearing cap with its concave edge up.
From the manual: “sliding column, upper bearing, upper bearing cap (the concave edge of the cap facing upward).”
- Still pushing the burr, screw the knurled thumb nut clockwise.
From the manual: “Turn the knurled thumb nut clockwise while pushing the burr.”
- Let go of the burr, then screw the adjustment dial on clockwise and stop at the first resistance.
From the manual: “tighten the adjustment dial clockwise and stop when you feel resistance.”
- Read the number at the dot where the handle starts to turn with resistance; that is your zero, and it need not be #0.
From the manual: “We define the zero point as where the handle starts to spin with resistance instead of the tightest position.”
- To make zero read #0: take the dial off, turn the thumb nut counterclockwise one click per number the dot read past #0, refit the dial and recheck. Optional Repeat until zero reads #0 (±2 clicks)
From the manual: “Adjust the knurled thumb nut counter-clockwise with 1 click.”
Sources
- 1Zpresso User Manual – JX-Pro (JX-Pro S) (web manual) Manual
- 1Zpresso: Cleaning Guide for the 1Zpresso Top Adjustment Grinder (JX-Pro S, JE-Plus) Maker’s page
Researched on .
Published: the sentence is on the maker’s own page or in the maker’s own document.