Having a hard time removing the dough hook on the h-600.

Take a look where the agitator pin engages with the dough hook.
Either the agitator pin (sticks out from the agitator shaft) is worn out or the groove in the dough hook where the pin should sit has elongated and worn. Either pin replacement is in order or new hook is required...possibly both.

I had the same problem too. There should be maybe 1/4" of loose vertical play of the dough hook (or similar attachment) on the agitator shaft. The hook locks in place rotationally on the shaft until it is pushed up. Before you try to turn the dough hook backwards in an attempt to remove it, push it upwards and hold it up, then rotate.

Make sure your Beater can slip in and out of the Beater Shaft

easily. Do not force the beater onto the Shaft if the shaft is bent.

If it cannot be removed easily by hand, use a soft rubber mallet

(not a steel hammer) to slightly tap the beater so it can be moved

up and down the shaft or from side to side. Then you can easily

turn the beater left and remove it from the shaft.

From Kitchenaid Manual:

To Attach Flat Beater, Wire Whip, or Dough Hook

1. Turn speed control to OFF.

2. Unplug stand mixer or disconnect power.

3. Tilt motor head back.

4. Slip beater onto beater shaft and press upward

as far as possible.

5. Turn beater to right, hooking beater over pin on shaft.

6. Plug into a grounded 3 prong outlet.

To Remove Flat Beater, Wire Whip or Dough Hook

1. Turn speed control to OFF.

2. Unplug stand mixer or disconnect power.

3. Tilt motor head back.

4. Press beater upward as far as possible and turn left.
5. Pull beater from beater shaft.

Your Flat Beater, Wire Whip and Dough Hook attachement ends should
look the same. They are inserted onto the beater shaft and held in place
by a single pin. The reason you cannot attach the dough hook to the
beater shaft because it is the wrong hook for your particular model.

The blade sounds like it's jammed somehow perhaps simply with some food matter.
Ensure the mixer is not plugged in then try removing the bowl, locking the mixer in the down position and pushing up hard on the blade to try and dislodge it. If it comes free and lifts up then try wiggling and rotating it normally off the mount.
Sometimes with use the attachments can become slightly warped requiring more force to lift them before rotating off the mount.
I once used my own Kitchen Aid mixer with the dough hook attachment to make a whole wheat bread dough. When I was done the hook was a bit bent from the hearty dough. There was also some flour in the mount causing it to jam. Removing the hook attachment proved difficult but not imposable.
Good luck.

You can knead longer than that, but you run the risk of over heating the mixer because at that point the dough is very firm. Your best bet is to knead it by hand.

I just got my dough hook unstuck! The problem was the bolt at the top of the dough hook. This bolt is used to adjust the height of the dough hook. This bolt came loose while mixing and went up towards the mixer. The force of the spinning actually tightened this bolt against the mixer so when I tried to release the dough hook by lifting and turning, it wouldn't lift. The bolt was in the way! The solution is to loosen this bolt. You'll need a thin wrench that's about 15 mm. You can test loosening this bolt on the other attachments since they loosen in the same manner. You'll have to bend the white shield down slightly to get the wrench in there. It's a tight squeeze even with a thin wrench. Hold on to the lower end of the dough hook and turn the wrench counterclockwise when looking down at it. Once you loosen the bolt, you'll be able to turn the lower portion of the dough hook to lower it. Then you can lower the bolt further. Once you have them low enough, you can remove the dough hook like normal - lift and turn. Sure beats boxing it up, shipping it for repair and paying for shipping both ways!

Hi. You should consider a few things. They type of hook you use, can greatly affect your end result. If you're making a yeasted dough with a high protein percentage 12-13%, you should be using an "ED" hook, this is a spiral hook that has a sharp turn at the tip. You can find them on eBay for a competitive price. I believe that Hobart also sells them, but for a higher price. They are very good for mixing pizza type doughs, they also do an excellent job kneading the dough.

Have you checked the flour for lumps before it goes into the mixer? Have you tried sifting the flour?
Are you adding all the liquid and flour at once? If so try adding flour in stages to all the liquid. If you find that this solution helps you, please rate it. Good luck! ricardok45

Hi. Stop using your mixer. If your mixer is still covered by warranty, call Kitchenaid Customer Service, they are very good with warranty repairs.

If your mixer is out of warranty, remove the silver band that surrounds the top of mixer. Remove the top cover. At the front of the mixer, locate the transmission housing which is now exposed. Examine this housing carefully for cracks. If you find cracks anywhere in this housing, you have found the under-engineered plastic transmission housing. Kitchenaid's replacement housing is made of metal. Your plastic housing has no business being in a mixer that is marketed as being able to mix bread dough. It cannot!

If you're confident that you can make the repairs yourself, go to the Kitchenaid website and download the parts drawings. Remove the Trans. housing, remove the worm gear shaft assembly which is driven by the motor.. Remove and save as much grease as necessary to thoroughly inspect the worm gear. Inspect the worm shaft bearings. Look for cracks, or missing pieces on the bearings. Look for crunched cogs on all gears. Be prepared to wait at least a month for your parts to arrive after you order them. The replacement grease should be Shell Darina 2, or Chevron FM ALC EP 2.

If you're not confident about repairing this yourself, call Kitchenaid and determine the nearest "approved" repair shop.

You may be able to pressure Kitchenaid to pay for the damaged parts in your mixer. They are still installing these plastic Trans. housing on new mixers. Insist on a metal cover when replacing. Apparently, Kitchenaid feels no shame in their manufacturing process, and will not issue a recall notice for these housings. They are substandard at best.

If you found this solution helpful, please rate it. Good luck! ricardok45.

Had the same problem with dough hook not coming off. Sent to a Viking dealer in Rockford and was quoted $600. to replace gear box. Took it back without repairs and call Viking listed in manual and sent it to them on a Monday and by Friday had it back fixed and no charge.DM