4KG25H3XWH5 KitchenAid Mixer - Instructions

Replaced cracked plastic gearcase/transmission with new medal one and replaced hub bevel gear attachment, bevel gear and gasket.

disassembled unit gear head and replaced broken part, then reassembled

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

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.

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.

The repair is actually quite simple. The Snap Ring Pliers are essential. Make sure you clean out all the old grease in the machine and replace with new grease. The metal dust will act like sandpaper and destroy your new gear. There are several videos on YouTube which go through the process of repair and part replacement, I found these quite helpful. Good luck! DIY!!!!

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.

Watched the video. Ordered the parts. Watched the video again. Replaced the worm follower gear and bearings on the worm gear. Added grease. Installed new gear housing. Put it all back together and tested. Works like new. Now I get cakes and goodies again and have a happy wife who thinks I'm super handyman. Thanks

watched the youtube video on how to repair a Kitchenaid Pro 600.

the plastic covering the thumb screw cracked almost half way and lost the piece....so the new one is being used to replace this old one...very easy to install

Great experience. Reasonable cost. Quick delivery. Would certainly use PartSelect again

ordered the part and put in in with the help from the instant repairman

I tried to use the broken mixer paddle for almost a year before I checked out the part broken on line. I easily found the part, and it arrived within a week--and fit perfectly! Thank you for making it so easy to do on line!

replaced Speed control board. less than 40.00 took ten minuets from the time I started until we were making cookies.

Open the package with the new screw and it looked like the screw was wider. I tried it to see if it goes in and as long as you screw it straight in, there was no problem.