Models > 4KB25G1XBU3 > Instructions

4KB25G1XBU3 KitchenAid Mixer - Instructions

All installation instructions for 4KB25G1XBU3 parts

These instructions have been submitted by other PartSelect customers and can help guide you through the mixer repair with useful information like difficulty of repair, length of repair, tools needed, and more.

All Instructions for the 4KB25G1XBU3
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Speed control stuck from sugar/flour build up on slide

  • Customer: David from Dekalb IL
  • Difficulty: Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
Took housing off, removed computer board and disconnected speed control assembly from board. Soaked plastic slide in hot water and freed up mech. Discovered a crack in plastic slide from forcing it. Ordered new assembly and installed. TIP: Keep slide clean of substances that will jam it by cleaning occasionally with water. For a complete cleaning you will have to remove it. Total of 6 easy to reach screws.

Worn gears

  • Customer: Ronald from Spring Field VA
  • Difficulty: Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
Took mixer apart and then the gear compartment. inspected components. Replaced the worn gears and re-greased the new parts. Put the gear compartment back together, tested the operation of the unit and then replaced the rest of mixer, re-tested and declared victory.

worn gear causing slippage under load

  • Customer: Rodney from Thornton NH
  • Difficulty: Easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
removed cover. Removed cover over gears. Used lock washer pliers to remove lock washer. Took out gears. Cleaned metal shavings from old gear and grease. Reassembled using new gear. Took about 15 minutes and saved $$ over sending mixer out for the repair.

Stripped worm gear

  • Customer: Johna from Ketchikan AK
  • Difficulty: Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
Looked at the schematic for this model on Parts Select. Removed Aluminum band screw, removed the 4 screws that hold the top of the mixer. Lifted the top off. Removed 4 screws and lifted the gear case. Removed snap ring and took off tapered gear. Removed pin and removed worm gear. Picked out the metal, in the grease, from the old worm gear, using a magnet then inserted new worm gear and put it back together in reverse order. There was plenty of grease and didn't need to add any.

Mixer wouldn't slow down

  • Customer: Sal from STATEN ISLAND NY
  • Difficulty: Easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
I unplugged the mixer, then I removed the Phillips screw holding the beauty ring, then removed the 4 screws that hold the motor housing together. I removed the housing top, and unscrewed the speed control switch. I marked each one of the connectors of the switch (there are 4) 1-4 then disconnected the speed sensor from the switch and the motor. Replaced the new sensor and connected that to the new speed control switch. reconnected the connectors to the terminals I took them from ( 1 - 4 ) screwed it into place. replaced the top motor housing, I screwed that back with the four screws. replaced the beauty ring and screw. plugged it in and tested it and it was like new

Broken Bevel Gear

  • Customer: robert from cypress CA
  • Difficulty: A Bit Difficult
  • Time to Complete: 1- 2 hours
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
You must have new bevel gear and can of food grade grease, ordered together. 1. Remove screw from back of mixer, holding the trim band; remove band. 2. Remove four screws holding the top cover. 3. Remover cover 4. Remove two screws holding the PC board and motor speed control; lift board out of the way. 5. Remove four screws holding gear cover; remove cover. 6. Remove as much gear grease as is accessible; discard. 7. Remove snap ring from vertical shaft holding bevel gear. 8. Remove horizontal shaft/gear by lifting straight up. 9. Remove bevel gear by sliding up shaft. 10. Remove cross pin holding lower gear. 11. Remove lower gear by sliding up shaft. 12. Remove vertical shaft and rotating head by tapping on top of shaft. 13. Clean all grease from gear case and on all gears (ground metal from bevel gear will be in this grease). 14. Clean all grease from inside gear cover. 15. Making certain gear case is now clean of all old grease, use putty knife to place grease in bottom of gear case. 16. Rub light coat of grease on vertical shaft and slide shaft back up into bottom housing. 17. Slide lower bearing back down vertical shaft. 18. Reinstall cross pin holding lower gear. 19. Place grease on lower gear. 20. Slide bevel gear down vertical shaft, making certain recess in underside of bevel gear lines up and sits completely over top of lower gear; when the bevel gear is fuly seated the snap ring groove will just be showing on the vertical shaft. 21. Reinstall snap ring. 22. Lightly grease shaft of both ends og horizontal shaft/gear; make certain ball bearing on front of shaft is also greased. 23. Slide ball bearing, spacer and bronze bushing on front of horizontal shaft. 24. Silde bronze bushing on opposite end of horizontal shaft (flange on bronze bushing is placed facing the gear). 25. Place assembled horizontal shaft/gear into lower gear housing. 26. Liberally grease all gears, 27. Replace gear cover, replace screws. 28. Replace PC board and motor speed control. 29. Plug mixer in and run on lowest speed for at least 10 minutes;increase speed until satisfied gears ar running smoothly. 30. replace top cover and trim band. BAKE SOMETHING

Gears worn and Speed control sensor

  • Customer: robert from san antonio TX
  • Difficulty: Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
I have to thank you at Partselect.com. You happen to help me help other people. Now I have several people bringing me their Kitchenaids to me instead of sending them in. I replaced two worm gears on a Kitchenaid 6 and the Hall sensor on a Kitchenaid 5. Very easy to do. Next week I have another Kitchenaid 5 to replace the motor on. Thankyou again for having the parts I need

Gears were slipping

  • Customer: fatema from dublin CA
  • Difficulty: Really easy
  • Time to Complete: 1- 2 hours
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
Noticed worm gear was worn out, ordered the parts, it came very next day. On YouTube instructions were very easy to follow. Important point to remember,I washed the parts in water with chlorine in it. Retaking ring was tough to take out, as I did not have parrot beak plier, could not find it at Home Depot or Lows. Putting the retaining ring I used circular nut driver, to press it on the shaft to slide down by hammering it. While assembling follow the instruction step by step from the you tube. Machine works smoothly. Performing well. Thanks to part select, excellent web page, efficient delivery. I would recommend them to all.

Motor running but not driving mixer shaft

  • Customer: Brian from New Bern NC
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
Remove screw and nut from back of mixer head to release the silver name band. Remove the exposed four cross head screws, (two each side), and lift off the motor and gear cover. Wipe excess grease from gear wheels to expose the retaining ring clip at top of vertical gear shaft. Using small nose circlip pliers, remove retaining ring and bevel gear wheel to expose shaft pin and worm gear. Support the shaft from below and remove pin. Lift off worn worm gear wheel allowing shaft to drop down. The horizontal worm gear shaft can now be lifted out taking care to keep assembled. Carefully clean old grease from all gears and from the gear housing, (note that broken pieces of the old worm gear are in the old grease. Repack housing with fresh high performance grease recommended for worm drives. Cover new and reuseable gears with grease. Reverse the process to reassemble the unit.

The mixer made load noise and quit agitating.

  • Customer: Luis from Omaha NE
  • Difficulty: A Bit Difficult
  • Time to Complete: 30 - 60 mins
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
Removed the cover. Removed the gear assembly cover.. Extracted the C clip with a tool. Removed the bevel gear. Pushed out the dowel pin. Used rubber mallet to push the shaft off the worm gear. Replaced the washer and the worm gear. Used a 1/2" diameter PVC, 3" long over the shaft and on the gear to push back the shaft through the gear with rubber mallet. Pushed back the dowel pin. Reinstalled the C clip. Replaced broken hub bevel gear. Added more grease. Placed the gear cover with 4 screws just tight enough to hold the cover but still allows movement. Turned the mixer to the lowest speed. Allow the cover to self adjust so that the gears have the smoothest sound. Tightened the screws while while maintaining the smooth sound. Turned off the power. Replaced the cover.

broken bevel gear

  • Customer: Jeffrey from Highland IN
  • Difficulty: A Bit Difficult
  • Time to Complete: 1- 2 hours
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
After removing the single philips screw from the back of the unit, the metal band will come off. Under the band you will find 4 phillips screws. Remove them to get the cover off of the unit. Once open, access the gear box in front by removing the four philips screws holding the gear box cover down. Remove any old grease from the unit as there may be pieces of broken gear in the grease that will damage the new gears. I used a small plastic scraper, some paper towel, rubber gloves and q-tips to get all of the grease out. Try to make a note of how much grease you removed and from where, so that you can replace about that amount later and in the correct spots. To remove the bevel gear remove the split ring holding the bevel gear down on the vertical drive shaft. Once the ring is removed it will be easier to move the bevel gear, but I found that it was somewhat press fitted on the shaft and I needed to use some channel locks to gently rock it back and forth to get it moving up the shaft. I then, also, (since I was in there) replaced the worm gear underneath the bevel gear by tapping the retaining pin out of the hole above the worm gear and then tapping down on the vertical drive shaft with a hammer to push the planetary gear down and out of the unit. Once free, I then regreased the planetary and reinserted it in the holder taking care to align the gears on the shaft and the panetary housing. Then I tapped the worm gear all the way down to the base taking care to keep the recessed notch on the top of the worm gear parallel to the pin hole above it. Then I replace then pin and tapped the bevel gear down onto the top of the worm gear and replaced the split ring. Realigned all of the horizontal and vertical gears and then repacked the grease. Closed up the gear box and test ran the unit on low. THen closed up the rest of the unit in reverse of opening.

mixer skips and making noises when mixing the dough

  • Customer: Fred from Jonesboro GA
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
Remove the top cover , inspect the gears . In my case the worm gear and the gear follower worn out . I removed the damage gears and the old grease , clean the inside and reinstalled everything . Now , the mixer is working good again.
All Instructions for the 4KB25G1XBU3
91-102 of 102