The wire whip hits the bow too much and makes a strong noise and ends up heating the bowl. what can I do to fix it? thanks

The wire whips are repairable but only by welding the whip back into place, that can be quite costly, and with new wire whips costing less than $20 that is the more economic solution.

Here is a link to the wire whips made by KitchenAid: Wire Whip MendingShed com Bowls Beaters Attachments

You will want to get your model number from the bottom of the mixer to ensure you get the correct wire whip. If you have trouble finding your model number in the chart be sure to contact us at Repairs Parts Kitchen Store MendingShed com & we will be happy to assit you.

- Colleen @ Mending Shed

Kitchenaid does not make a 4 or 5 quart bowl that would fit your 6 quart mixer, but other 3rd party companies do!
You may be in luck.
I haven't seen this bowl in person, but it apparently will fit your 6qt mixer. Here is a link to a page selling the mentioned attachment. It comes in a set, with appropriate wire-whip attachments:

http://www.chefscatalog.com/product/25686-kitchenaid-3qt-stainless-bowl-and-whip-set.aspx

The beater cannot "heat" the bowl, so I am going to assume that is a typing error, and you meant hitting.
If the beater hits the bowl it is usually caused by the adjusting screw at rear of the column being improperly set. To correct this you need to turn the adjusting screw slightly to right, or left to adjust clearance. Clearance should be 1/16", about the thickness of a dime.
If this does not fix the problem, and the beater still rubs the bottom of the bowl, it can be corrected by tapping the yoke arm with a mallet, there should be 1/16" clearance between bottom of bowl and end of the beater.
You can determine the 1/16" by dropping a dime in the bowl, the flat beater should just "touch" the coin as the beater rotates.
If you have questions feel free to call us @ the Mending Shed.
Thank you,
Colleen
Customer Service
MendingShed.com
800-339-9297

On the tilt head models there is a "Stop screw" that adjusts how far down the head goes. I just can't remember if it's in the head or base. I use the other model that lifts the bowl.

Hi SUSAN. From the symptoms you describe, it sounds like your mixer has a ‘Bowl to Beater Clearance’ issue. That should be pretty simple to fix. But even before we go there, check to make sure your mixing bowl is seating properly in the Bowl Support yolk and ‘snaps’ into place against the Bowl Spring Latch. My wife’s had that happen to her a few times. She thought the bowl was seated tightly, but it wasn’t and she experienced the same problem as you.
If your bowl is seating properly, the next thing to look at is your Beater to Bowl Clearance. The instructions are located in your Owners Instructions manual that came with your mixer. If your lacking one, you can easily download a PDF version of your Owners Manual from the KA website at: (http://www.kitchenaid.com/flash.cmd?/#/page/home).
Click on Customer Care>Locate Manuals& Guides> and enter the 6 character model number (in your case, use KT2651 )and select the last file listed that appear under Owners Manuals (44): KT2651XWW3.pdf (2974.69 KB) and save that file to your PC. You’ll need to have Adobe Reader to be able to open it. Turn to Page 10 and you will find the instructions for adjusting the mixer head height.
Beater to Bowl Clearance
Your mixer is adjusted at the factory so that the flat beater just clears the bottom of the bowl. If for any reason, the flat beater hits the bottom of the bowl or is too far away from the bowl, clearance.
Beater to Bowl Clearance:
Your Stand Mixer is adjusted at the factory so the flat beater just clears the bottom of the bowl. If, for any reason, the flat beater hits the bottom of the bowl or is too far away from the bowl, you can correct the clearance easily.
1. Unplug Stand Mixer.
2. Place bowl lift handle in down position.
3. Attach flat beater.


4. Adjust so flat beater just clears bottom surface of bowl when in lifted position by turning screw (A) clockwise to raise the bowl and counterclockwise to lower the bowl. Just a slight turn is all that is required: the screw will not rotate more than 1⁄4 turn (90 degrees) in either direction. (The full range of adjustment is 1⁄2 turn, or 180 degrees.)
5. Place bowl lift handle in up position to check clearance.
6. Repeat steps 4 and 5 if necessary.

NOTE: When properly adjusted, the flat beater will not strike on the bottom or side of the bowl. If the flat beater or the wire whip is so close that it strikes the bottom of the bowl, coating may wear off the beater or wires on whip may wear.
Good luck and have fun. I hope this helps. Howard, Burke, VA
If this solution was helpful, please rate it, thanks! – hslincoln

Hi LEDAVETTORI, you don’t provide the model number or say if you have a ‘tilt-head’ or a ‘bowl-lift' mixer, which would helpful, but you can easily download a PDF version of your Owners Manual from the KA website at: (http://www.kitchenaid.com/flash.cmd?/#/page/home).
Click on Customer Care>Locate Manuals& Guides> and enter the 6 character model number and select a file listed under Owners Manuals and save that file to your PC. You’ll need to have Adobe Reader to be able to open it. Turn to Page 11 and you will find the instructions for adjusting the mixer head height. I have extracted the instructions below:
Beater to Bowl Clearance
Your mixer is adjusted at the factory so that the flat beater just clears the bottom of the bowl. If for any reason, the flat beater hits the bottom of the bowl or is too far away from the bowl, clearance.
Tilt-Head models
• Unplug mixer.
• Lift motor head.
• Turn screw (A) SLIGHTLY counter clockwise (left) to raise flat beater or clockwise (right) to lower flat beater.
• Make adjustment with flat beater, so it just clears surface of bowl.
If you over adjust the screw, the bowl lock lever may not lock into place.

Bowl-Lift models
• Unplug mixer.
• Place bowl lift handle in down position.

• Turn screw (B) SLIGHTLY counter clockwise (left) to raise flat beater and clockwise (right) to lower flat beater. •Make adjustments with flat beater, so it just clears surface of bowl.
If you find the adjustment screw missing, you’ll need to replace it. But now you’ll need
I hope this helps! –Howard, Burke, VA
If this solution has helped you, please rate it, thanks! - hslincoln

Hi LEDAVETORI, you don’t provide the model number or say if you have a ‘tilt-head’ or a ‘bowl-lift' mixer, which would helpful, but you can easily download a PDF version of your Owners Manual from the KA website at: (http://www.kitchenaid.com/flash.cmd?/#/page/home).
Click on Customer Care>Locate Manuals& Guides> and enter the 6 character model number and select a file listed under Owners Manuals and save that file to your PC. You’ll need to have Adobe Reader to be able to open it. Turn to Page 11 and you will find the instructions for adjusting the mixer head height. I have extracted the instructions below:
Beater to Bowl Clearance
Your mixer is adjusted at the factory so that the flat beater just clears the bottom of the bowl. If for any reason, the flat beater hits the bottom of the bowl or is too far away from the bowl, clearance.
Tilt-Head models
• Unplug mixer.
• Lift motor head.

• Turn screw (A) SLIGHTLY counter clockwise (left) to raise flat beater or clockwise (right) to lower flat beater.
• Make adjustment with flat beater, so it just clears surface of bowl.
If you over adjust the screw, the bowl lock lever may not lock into place.

Bowl-Lift models
• Unplug mixer.
• Place bowl lift handle in down position.

• Turn screw (B) SLIGHTLY counter clockwise (left) to raise flat beater and clockwise (right) to lower flat beater.
•Make adjustments with flat beater, so it just clears surface of bowl.
If you find the adjustment screw missing, you’ll need to replace it. But now you’ll need
I hope this helps! –Howard, Burke, VA
If this solution has helped you, please rate it, thanks! - hslincoln

Hi TJEWKES67. Before you tear into the ‘guts’ of your mixer any further, I’d like you to make a simple check the vertical play of the planetary. Locate where the planetary comes out of your mixer’s head, and place your left index finger on the edge of the planetary (rest your nail edge of the mixer head). With your right hand, push the planetary straight up (like you were trying to push it through the top of your mixer) until it stops, then let go. How much vertical movement did your index finger feel as you did this? Your planetary shouldn’t rise vertically more than a 1/16 of an inch, or less. If that’s the case, relax, your planetary is not coming out of your mixer, but just normal play within the transmission, and perfectly OK.
Before linking the beater to bowl clearance with the planetary gear ‘falling’, it would be much easier to first check the adjustment screw on the back of the pedestal to ensure that is properly adjusted. You don’t say how hold your mixer is, but I assume it is out of warranty.
Do you still have your Instructions & Recipe Manual for your mixer? If not, you can easily download a PDF version of it from the KA website at: (http://www.kitchenaid.com/flash.cmd?/#/page/home).
Click on Customer Care>Locate Manuals& Guides> and enter the 6 character model number, in your case, use KB26G1XN, and select the file that appear under Owners Manuals: KB26G1XGR5.pdf (2974.69 KB) and save it to your PC. Turn to Page 11 and you will find the instructions for adjusting the Beater to Bowl Clearance, which I have extracted for you below:
Beater to Bowl Clearance
Your mixer is adjusted at the factory so that the flat beater just clears the bottom of the bowl. If for any reason, the flat beater hits the bottom of the bowl or is too far away from the bowl, clearance.
Beater to Bowl Clearance:
Your Stand Mixer is adjusted at the factory so the flat beater just clears the bottom of the bowl. If, for any reason, the flat beater hits the bottom of the bowl or is too far away from the bowl, you can correct the clearance easily.
1. Unplug Stand Mixer.
2. Place bowl lift handle in down position.
3. Attach flat beater.


4. Adjust so flat beater just clears bottom surface of bowl when in lifted position by turning screw (A) clockwise to raise the bowl and counterclockwise to lower the bowl. Just a slight turn is all that is required: the screw will not rotate more than 1⁄4 turn (90 degrees) in either direction. (The full range of adjustment is 1⁄2 turn, or 180 degrees.)
5. Place bowl lift handle in up position to check clearance.
6. Repeat steps 4 and 5 if necessary.

NOTE: When properly adjusted, the flat beater will not strike on the bottom or side of the bowl. If the flat beater or the wire whip is so close that it strikes the bottom of the bowl, coating may wear off the beater or wires on whip may wear.
See second comment...
Good luck and have fun. I hope this helps. Howard, Burke, VA
If this solution has been helpful, please rate it, thanks! - hslincoln

With the machine unplugged, remove those two black screws on the side and pull out the motor brushes. Make sure the metal blocks on the ends of the springs are in good shape. These wear out and the screws are there to easily replace them. You can order new ones cheap from kitchenaid. If it's not those brushes then the problem could be in the gearbox and you can't fix it. Are you sure it's not a bent wire whip or mixing paddle banging against an improperly seated bowl?

I have the same mixer. Make sure the bowl is firmly latched into the base. also, make sure the bowl didn't get bent in shipping. If the paddle hits at a regular timed interval, it's must likely a problem with the way the bowl seats. As long as you don't hear a loud hit verses just a click, it shouldn't be a problem, just an annoyance. In time, you will probably heat tapping when you use the wire wisk. I am glad I bought mine. I hope you enjoy the difference a good mixer makes.