Baratza Maestro Use and care manual

How to: Motor Replacement
Maestro, Maestro Plus, Preciso, Encore, Virtuoso, Virtuoso+,
Time: 25 min
Difculty: Moderate
Tools/supplies: Flat head screwdriver. Phillips screwdriver. T10 screwdriver.
Metric Hex Wrenches (3 and 4mm). Cloth or rag.
Parts: Motor (SKU6026)
Additional Resources: Case Removal (PDF/video)
*** Unplug the grinder from power supply ***
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Remove the case using our case removal guide.
Cloth
Flat
Phillips
T10
Pliers
ver. 1.0

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Lift the safety interlock
switch off its posts.
Remove the 3 screws
securing the gearbox/
motor assembly to the
chassis.
*These screws may be
Phillips, or Torx size 10*
Unplug the motor and
lift the gearbox/motor
assembly from the
chassis.
*If the motor wires are
hard-wired to the circuit
board, mark which
color wire goes to each
terminal to prevent
the burr from spinning
the wrong way after
reassembly. It should
spin clockwise.
Unplug this
Pg. 2

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Remove the 4 screws
securing the motor/
motor plate to the
gearbox housing.
* These screws
may be Phillips,
or Torx size 10
Pull the motor/motor
plate out and set the
gearbox aside.
Remove the 2 screws
securing the motor to the
motor plate.
*These screws may be
4mm hex, 3mm hex or
Philips*
Check the new motor.
If they aren’t already,
connect the new motor
wires to the new motor.
Connect the red wire
to the spade with the L
shaped base to ensure
proper polarity and
clockwise burr rotation.
Motor screws
Here, the red
cable has red
markings at its
terminal.
Pg. 3

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Install the new motor
to the motor plate.
Insert the screws in
the 2 screw holes such
that the screws, motor
and bushing are all in
a straight line. (See
picture). The other holes
remain empty.
Install the motor/motor
plate into the gearbox
housing.
Tighten the screws in an
X pattern to ensure even
tension.
Motor screws
Motor screws, motor shaft,
and bushing for drive shaft
form a line.
Fourth screw
behind motor
Pg. 4

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Install the gearbox/
motor assembly into the
chassis, taking care to
keep the chute gasket
in place. Plug the motor
cable into the board if
not yet connected.
Then, secure the three
screws which mount the
assembly to the chassis.
Pg. 5
Route these wires
behind chassis screw
Re-seat the safety
interlock switch onto its
posts. Ensure that the
button side faces inward,
and that the two posts
are ush with the top of
the switch.
Route motor wires around front and chute gasket below
pulse button wires.