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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Stripped worm gear

  • Customer: OLIVER from ANCHORAGE AK
  • Difficulty: Really easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
Used the meat grinder attachment, with the retaining ring too tight for the motor to turn the augur, so a gear stripped and the mixer would not run. I opened the mixer top, removed the transmission cover, removed enough grease to diagnose the problem (6 teeth stripped off the steel worm gear). I ordered a replacement steel worm gear and, while I was at it, a new retaining ring, bevel gear, retaining pin and the large planetary gear, as I could not tell the condition of these until I disassembled the whole gear train. I then removed the gear train components (needed a snap ring pliers to remove the retaining ring -- I don't recommend trying to remove it with an y other tool), washed them in acetone, cleaned out the transmission case and went over it with a magnet to get stray gear tooth remnants, replaced the worm and bevel gears and reassembled, using the original planetary gear, retaining pin and retaining ring. Filled the bottom of the transmission with planetary grease first, then, once the gear train had been replaced, slathered a big pile of grease over it, replaced the transmission cover. The machine then ran perfectly, so I replaced the mixer's top cover and decorative band and was back in business mixing with it about 30 minutes after cleaning the last of the grease off my hands. I should mention, I used a LOT of paper towels for this job. This was a fun job and I was sorry that it was so easy to do, as I enjoy working with gears and grease.

The motor was running but the mixer wasn't turning

  • Customer: Steve from Cornwall VT
  • Difficulty: A Bit Difficult
  • Time to Complete: 1- 2 hours
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
After trying to make a batch of heavy frosting, my KitchenAid mixer final stopped turning. After watching a video of how to change the grease in a similar model on PartsSelect and seeing it wasn't that hard to take apart, I decided to give it a try myself. Removing the cover exposed a completely worn gear drive. Luckily, it was easy to determine which parts needed replacing and PartSelect sent them in no time. Once I put everything back together, it sounded terrible which was pretty tough to take. As it turned out, the problem was flecks of metal from the gear were still in the grease and were getting caught in the mechanism. Once I thoroughly cleaned all the grease out and gave it some fresh grease the machine worked great. Much better than before. I only wish I had swapped the grease out at the same time. Thank you PartsSelect for saving me hundreds of dollars on a new machine!

Worn worm gear

  • Customer: Dennis from Frankfort IN
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
The KitchenAid is "old school" in that it is held together with simple (but very stout) bolts and screws. I removed about 10 such fasteners, slipped off the gear retainer, and pulled it out. On Sunday, a very nice customer service rep helped me order the right part, but I did the rest on line in a matter of seconds. It shipped on Monday and arrived on Wednesday. Took about 10 minutes to put everything back. I REALLY WISH everything was this easy in 2012!!!

no power and have bad noise

  • Customer: Man fui from East Brunswick NJ
  • Difficulty: Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
remove the cover,take out four screw from gear box,remove the gear box,clean all gears,then you see damage gear,replace it ,install new grease.

bevel gear was stripped

  • Customer: Mark from Florence OR
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
opened the mixer.. all screws in kitchaid are the same so not to worry... opened up and replaced the gears... and put it back together... diagram helped in that front and rear bearings of connecting gear are the same # on diagram it is easy to confuse when you put it back together, but the item number and description of each helped make sure it was in the right place. Otherwise... time to fix would have been less....

stripped gear.

  • Customer: Craig from Cawker City KS
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
took mixer cover off, took gear box cover off, removed gears, replaced gears, replaced covers, made cookies, no problem!!

head of screw was broken in half

  • Customer: marjorie from juda WI
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 0 people found this instruction helpful
I looked on line found the product sent in information and 3 days later was in my mailbox,great service and ease of ordering. thanks marjorie

Mixer would not fully rotate under any load

  • Customer: Rick from Warwick RI
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
Removing the cover of the mixers "guts", it was immediate evident the a major gear had lost a few of its "teeth". Parts Select clearly offered the required part of this $300 mixer for a favorable price. I was fully impressed that it arrived within 4 days or my ordering the part. I simply exchanged the damaged gear and restored the mixer to service and I'm fully impressed with the Parts Select Company for their swift response to my needs.

Stripped worm gear and broken lower gear housing

  • Customer: Andrew from Odessa FL
  • Difficulty: Easy
  • Time to Complete: 1- 2 hours
  • Tools Required: Nutdriver, Pliers, Screw drivers, Socket set, Wrench set
  • 0 of 0 people found this instruction helpful
Worm gear strips usually after the lower gear housing breaks. Tore down cleaned grease and shrapnel out, replace stripped worm gear and lower housing. It's convenient that the lower housing plate comes assembled with new bushing and gear. This is now the third one of these expensive mixers I have repaired, word got out that I fix them, and this is a very common problem. Repairs have been for friends and Church, so I don't charge any labor, it's kind of fun, messy, but fun. Note to Kitchen Aid: Please strengthen lower gear case.

Trouble with switch

  • Customer: Dawn L from Ceres NY
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
removed top casing, removed old switch and sensor,and replaced with new ones. It was just a matter of a half dozen screws and unpluging 4 or 5 wires and then reversing the process. Couldn't be easier. thank you

worm gear was worn down

  • Customer: Susan from Manchester IA
  • Difficulty: A Bit Difficult
  • Time to Complete: 1- 2 hours
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
removed the cover, separated the gear casing, cleaned the gears, replaced the thrust bearing kit and worm gear, greased all and reassembled. Wish I would have known to order the grease, it would have saved a couple bucks in shipping.

Clanking noise, motor strain/ ultimate burn out.

  • Customer: Francis from Plymouth MA
  • Difficulty: Really easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
First of all, go to the web site and download the schematics of the model #. It will show all the parts and part #s. Secondly watch a u tube video of the actual strip down process of the professional 600 series stand mixer. With this knowledge, do one of two processes 1: strip down the machine, remove the gears and check for defects- order parts. Or 2: replace all the parts( little money) and have a totally refurbished , smooth running mixer. I kept the good used gears for spares. I replaced 90 % of the internals ( including motor) and have a smooth running machine. I initially burned out the mother 2 months after initial purchase, sent it back under warentee, and received it back . Wen I stripped it down 10 years later, there was very little grease in the gear housing. This is what probable ruined the gears. Use plenty of grease in the housing and gears. The grease is one of the most expensive items, but you can't find it anywhere, so order it, along with everything else, from Parts Select.

Worm Gear teeth was stripped

  • Customer: Ronny from Clearwater KS
  • Difficulty: Easy
  • Time to Complete: 1- 2 hours
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
Removed top cover, remove snap-ring on shaft, slide top gear and worm gear off. Clean all the grease out and clean parts. Installed new worm gear and parts. Repacked with new grease, careful not to much, leaving room for expansion.

main shaft for beatter slipped way down

  • Customer: John from Kaukauna WI
  • Difficulty: Really easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
replaced planetary assembly. Was not difficult to do.

Pin-bowl lost

  • Customer: Tina from La Farge WI
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 0 people found this instruction helpful
Simply placed it in the slot and pounded until firmly in with a soft mallet. Thanks to your site I was able to find the piece easily and very inexpensively. Thank you so much. I would die if I couldn't fix this machine.
All Instructions for the 4KB25G1XBU3
61-75 of 102