Introduction
If your stand mixer has started grinding, rattling or dropping grease into food, the planetary drive likely needs a good clean-up and fresh lubricant. Servicing it yourself restores smooth, quiet operation and prevents further wear, saving the cost of a new appliance or a trip to the repair shop.
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Étape 1 Disconnect power and clear the workspace
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Remove the bowl and all beaters to free up space around the head.
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Étape 2 Remove the speed selector and upper cover
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Lift the side cover while holding the speed selector lever clear of its slot.
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Push the small retaining clip with a flathead screwdriver and slide the selector knob out.
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Étape 3 Disconnect wiring and extract motor with gearbox
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Pull the supply wires free and lift the complete motor and gearbox assembly out of the housing.
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Set the assembly aside on a clean surface.
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Étape 4 Remove brushes gasket and drive gear stack
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Pull the graphite brush straight out and store it safely away from grease.
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Lift off the rubber gasket the plastic ring and the main drive gear in order.
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Étape 5 Separate gearbox housing for cleaning
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Disconnect the green earth wire from the contact block to free the gearbox casting.
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Remove the housing so it can be cleaned independently of the electronics.
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Étape 6 Clean the mixer head interior
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Rotate the worm gear and wipe flour or sugar off the cavity with paper towels wrapped around the shaft.
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Étape 8 Grease the worm shaft and install bearing
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Apply thick gearbox grease to the worm shaft because this area never contacts food.
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Press the bearing into its seat with the rounded face toward the gear and the flat face toward the housing.
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Étape 9 Grease and assemble the drive gear stack
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Spread grease over the gear shaft gear teeth and both spacer washers.
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Hold the housing while sliding the shaft in so the bearing does not push out.
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Étape 10 Apply food-safe grease to the planetary gear
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Coat the external planetary gear lightly with white PTFE grease that is food compatible.
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Étape 11 Reassemble gearbox and fit gasket
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Grease the upper bearing seat and reinstall the bearing brush holder plate and control board.
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Tighten the large screws to secure the assembly.
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Étape 12 Oil the high-speed accessory bushing
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Place one drop of machine oil on the accessory drive bushing to reduce friction at high speeds.
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Étape 13 Reinsert brushes
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Keep your fingers dry then slide the brush into its slot with the beveled edge following the diagonal guide.
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Étape 14 Lubricate the tilt release mechanism
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Apply a dab of grease to the plastic tilt-release lever so the head locks and unlocks smoothly.
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Étape 16 Fit selector mechanism and close the housing
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Align the selector rod with its guide slots then lower the motor assembly into the housing.
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Route the power cord through its channel and seat the plastic guides before tightening the Torx screws.
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Your mixer’s planetary drive is now clean, freshly lubricated and ready for many more batches of dough. Repeat this service whenever the gears get noisy, or at least every few years if you use the mixer heavily.
