4KB25G1XBU5 KitchenAid Mixer - Instructions

Disassambled the gear-train.Removed all broken pieces and grease from gear case. Cleaned gear case and all parts. Reassembled gear-train with new parts and packed all with suitable quantity of new grease. Test run with variable speeds assuming working smoothly.

replace worm gear

Remove covers, open gear box, remove lock ring and gears to deterime which gears were bad. Remove old grease, install new gears and pack with new grease.

Could not get it properly installed. Had to take to a repair center for completion.

Unplugged wires from old switch, plugged them into the new switch. The new Switch have the mounting brackets in different places from the old one. Be sure to match up the numbers by the posts with the correct wires

Just followed the video.amazing!!got my kitchen aid back.

REPLACE SPPED CONTROL SWITCH

When I ordered a replacement assembly, I was sent a "new" replacement. As I had read up on your site to number the 5 wires BEFORE I removed them, this was a great idea. The new assembly was wired differently than the original board. Although no install instructions came with the new part, it was just a matter of connecting the NUMBERED wires to the new configuration. The first time I fired it up after plugging everything in, nothing happened! I removed all the plug-in wires and reinstalled to ensure I had not gotten a tight connection because of the plastic covers over the end connectors. On my second try, everything worked as advertised! VIOLA!!!! It was a bit tough because of the tight spaces within the motor housing and the new wire routing. Just take pictures of the area BEFORE you disconnect anything and you should do o.k., since I did. 20 minutes.

Found a kitchen aid repair video. Found your site for the part I needed. The connections were not like what the video showed but there were enough connector symbols that I was able to understand where they needed to connect. Marking the connections helped for making the new connections when the new circuit board came.

At first thought part was incorrect as the electrical connection tabs on the circuit board were not inline as the existing part. However, upon closer examination I realized that the same quantity of tabs existed on the new part and although not inline, were clearly marked the same as the original part. Unit was easily replaced and is operating just like new.

Removed 2 screws holding the switch unplugged the one at a time.
opened the gear box cover 4 Philip screws, cleaned out the grease
removed the pinion gear, removed pin, removed the planet gear assembly replaced gears in reversed order greased it up put gear cover back on and tested worked great.

Watched utube
video how to repair and ordered part, easy

Fast

Thank goodness for YouTube. Pretty much followed the process of taking it out. Was easy, but having a video made it a bit simpler.

using Phillips screw driver, remove 5 screws - take off cowl (cover)l. remove 2 screws holding speed control assembly
unplug old speed control assembly (4 plugs) and plug in new speed control unit - reassemble cowl .