KitchenAid Classic Mixer K45SSWH Worm Gear Replacement

Introduction

If your KitchenAid Classic Mixer K45SSWH won't spin or is making unusual noises, this guide will walk you through the process of replacing the worm gear.

Tools Required:

• Phillips #2 Screwdriver
• Hammer
• Flathead Screwdriver
• 1 mm Pin Punch
• Putty knife
• Spudger

Step 1 - Motor Housing Cover

Using a spudger, gently pry off the aluminum drip ring from the mixer.

Step 2

Using a 4 mm pin punch and a hammer, carefully tap the pin until it is dislodged from the planetary gear cover.

Step 3

With a spudger, pry the planetary gear cover away from the mixer shaft.

Step 4

Using a flathead screwdriver, remove the five 28 mm front motor housing screws. Then, using the same screwdriver, remove the two 28 mm locking screws. Note that one of the locking screws has a safety mechanism; ensure these screws are not interchanged with the front motor housing screws.

Step 5

Turn the mixer around. Using the flathead screwdriver, remove the two 28 mm rear locking screws. Be aware that one of these rear screws also contains a safety locking mechanism; do not interchange them with the front motor housing screws.

Step 6

Using a Phillips #2 screwdriver, remove the 10 mm screw located at the top of the back cover. The rear cover should now be completely free from the mixer.

Step 7

Carefully pull the power cord from the notch at the back of the mixer. The motor housing cover is now completely detached from the base of the mixer.

Step 8

Lift the motor housing cover off the mixer base. It is important to place the cover upside down to prevent any grease from leaking out.

Step 9 — Worm Gear

Using a butter knife or putty knife, carefully remove the old grease from the gears and place the removed grease into the motor housing cover.

Step 10

Using a Phillips #2 screwdriver, remove the three 20 mm screws securing the worm gear tower. The worm gear tower assembly is now free from the mixer base.

Step 11

Using a pin punch and a hammer, remove the roll pin.

Step 12

Slide the tower gear out to gain access to the worm gear.

Step 13

Remove the worm gear from the tower. To reassemble your mixer, follow these steps in reverse order.