ShotPulled › Gear › Burr replacement
Replace the cone burr: Baratza Encore
Before you start
- Time
- About 20 minutes
- Tools
- flat-head screwdriver, Phillips screwdriver, T10 Torx screwdriver, 11/32 in or 9 mm box wrench (or adjustable wrench), large pliers, vise grips or bench vise, cloth or rag, 13 mm wrench
- Supplies
- replacement cone burr (Baratza M3 cone burr, SKU 6173 (or M2, SKU 6175))
Warnings
- Never drive the shaft out with a metal tool; a damaged shaft tip has to be replaced. Source: Baratza "How to: Cone Burr Replacement" v1.2 (rev. 4/16/2019; Maestro, Encore, Virtuoso) — archived copy of baratza.com
- Do not tighten the new burr with wrenches; it tightens itself in use. Source: Baratza "How to: Cone Burr Replacement" v1.2 (rev. 4/16/2019; Maestro, Encore, Virtuoso) — archived copy of baratza.com
- If the shim washers got mixed up, use Baratza's GB2.0 guide to put them back in order. Source: Baratza "How to: Cone Burr Replacement" v1.2 (rev. 4/16/2019; Maestro, Encore, Virtuoso) — archived copy of baratza.com
Steps
- Unplug the grinder.
From the manual: “Unplug the grinder from power supply”
- Take the case off, following Baratza's separate case removal guide.
From the manual: “Remove the case using our Case Removal Guide.”
- Lift the safety interlock switch off its posts and let it hang clear.
From the manual: “Lift the safety interlock switch up off its posts and let it hang away from the grinder.”
- Undo the three screws that hold the gearbox and motor to the chassis.
From the manual: “Remove the three screws securing the gearbox/ motor assembly to the chassis”
- Lift the gearbox and motor out of the chassis.
From the manual: “Lift the gearbox/motor assembly up and away from the chassis.”
- Unplug the motor cable from the circuit board.
From the manual: “Unplug the motor cable from the board.”
- Undo the four screws that fix the motor plate to the gearbox.
From the manual: “Remove the four screws securing the motor plate to the gearbox”
- Remove the 13 mm gear nut; a 10 mm nut is reverse-threaded and loosens clockwise.
From the manual: “Remove the 13mm gear nut.”
- Drive the shaft down out of the gearbox with a screwdriver handle, one hand underneath to catch the cone burr.
From the manual: “A screwdriver handle generally works to hammer the shaft down and out of the gearbox.”
- Keep the washers from between the drive gear and gearbox housing together with the gear.
From the manual: “Place these in a safe place with the drive gear.”
- Take off the paddle wheel and its washers and store them apart from the drive-gear washers.
From the manual: “Keep them in a safe place separate from the drive gear/gearbox housing washers to avoid confusion.”
- Clamp the old cone burr in large pliers or a vise; wrap it in a rag if you will reuse it.
From the manual: “hold the cone burr with large pliers, a bench vise, vise grips, etc.”
- Unscrew the reverse-threaded drive shaft from the burr with an 11/32 in or 9 mm box wrench.
From the manual: “Use a 11/32” or 9mm box wrench to remove the reverse-thread driveshaft.”
- Screw the new cone burr onto the shaft by hand only (reverse thread).
From the manual: “Thread the new burr on by hand (the burr is reverse-threaded).”
- Fit the paddle wheel with its two pegs engaged in the underside of the burr.
From the manual: “Install the paddle wheel and index the two pegs into the bottom of the cone burr.”
- Refit the paddle wheel felt and its washers.
From the manual: “Install the paddle wheel felt and washers.”
- Slide the burr, shaft, paddle wheel and washers back up through the gearbox.
From the manual: “Slide the cone burr/ driveshaft/paddlewheel/ washers assembly through the gearbox.”
- Put the drive-gear washers back between the gear and the gearbox housing.
From the manual: “Install the washers between the drive gear and gearbox housing.”
- Press the drive gear on until flush with the shaft hex, lip facing away from the burr.
From the manual: “Press the drive gear into place until flush.”
- Fit the washer and nut, finger-tight only.
From the manual: “Install the washer and nut. The nut should be finger-tight.”
- Reattach the motor and plate to the gearbox, tightening the screws in a cross pattern.
From the manual: “Tighten screws in a X pattern.”
- Set the gearbox and motor back in the chassis and plug the motor cable into the board.
From the manual: “Install the gearbox/ motor assembly back into the chassis.”
- Route the interlock cable under the right-hand chassis screw mount.
From the manual: “Route the safety interlock cable under the right chassis screw mount as pictured.”
- Refit the three chassis screws.
From the manual: “Secure the three chassis screws.”
- Seat the safety interlock switch back on its posts.
From the manual: “Set the safety interlock switch onto its posts.”
- Refit the case.
From the manual: “Reinstall the case to return the unit to operation.”
Sources
- Baratza "How to: Cone Burr Replacement" v1.2 (rev. 4/16/2019; Maestro, Encore, Virtuoso) — archived copy of baratza.com Maker’s support page
Researched on .
Community: the maker’s text, hosted somewhere else, usually by a retailer.