I cannot disengage the accesary adopter fromconnection nozzle/Help

If its just the nozzle, soak it in a mixture of Dawn, baking soda & hot water apprx 5-10 min. After soaking take an old paint brush, sponge applicator or several pipe cleaners and just start to work it, The gunk should start to break up. If not, you may need to enlist the help of a butter knife to help your cause.

Hi! Happy to help with that. Please follow the steps below.

• Lay cleaner flat and flip cleaner to expose nozzle base. Base should lay flat and face up. To remove nozzle guard, use Phillips screwdriver to remove the three (3) screws.
• Lift and remove brushroll. Dispose of old belt.
• Slide belt onto motor shaft.
• Place new belt in area of brushroll without bristles.
• With new belt in place, pull and slide brushroll into nozzle making sure that the brushroll end cap on the left is in the correct orientation. Rotate brushroll manually to make sure belt is properly aligned.
• Reattach nozzle guard by carefully sliding back into place. Interlock rollers and nozzle guard by tilting rollers down towards the base while replacing the nozzle guard.
• Be sure to replace all three (3) screws.

Hope this helps!

If you mean the light on the top or side of the Power Nozzle, yes, it should be on for most uses. You can disengage the belt for other uses. The green light illuminates when the belt is turning the brush roll. So, you see, the green light functions to confirm to you that the brush roll is spinning. For carpet, you would want the brush roll spinning. When I vacuum my comforter or sofa, I don't have the belt engaged because I don't want the roller to grab up my fabric. For that use, the green light is not illuminated.

is the belt broken that turns the power head

If it is very loud, you probably have a broken motor fan. Remove the carpet nozzle from the front and examine the fan for damage.

Its probaly between the nozzle and wand, grab nozzle and hold it still and slightly move wand to see if it shorts

you have to be more spicific on the model but: if you take off the front nozzle by loosen the nozzle lock, make sure the name kirby is horizontal, loosen the latches at the back of the nozzle un hook the rugplate located at the bottom of the nozzle...take out the brush..... slip out the old belt...in with the new one. put back the rugplate, lock the latches. NOW turn the nozzleknob anticlockwise until it stops at where the 2 arrows align, put the nozzle back on the main machine and lock the nozzle lock underneath the light.then turn the knob ALL the way clockwise until arrows allign again....switch on machine ..make sure green lihgt on nozzle comes on....

Vibrating – that usually happens on some short fiber or very dense carpets. When nozzle goes against the carpet fiber Kirby starts jumping. Try vacuuming the same place while facing opposite way.

Belt – red arrows means DISENGAGE. When you install the nozzle on the Kirby unit while green arrows match you will not be able to turn it on red. You must follow sequence (starting from nozzle off the Kirby, green arrows match, Kirby front lifter all the way up by pressing one of the pedals):
1. Turn Kirby knob to match red arrows. You will feel some tension and hook inside of the nozzle is supposed to catch the belt and stretch forming a loop for the Kirby shaft.
2. Put the nozzle on the Kirby and lock it on with the latch.
3. Twist the knob back to match the green arrows. YOU ARE DONE

Go to GoodVac.com Kirby vacuum online manual. There are some small details that you may want to pay attention to if you have removed the brush roll to install a new belt. Also there are some pictures that will help you understanding the process.

Make sure that your power nozzle has a little metal prong that plugs into the little rectangular hole in the fan case. If the prong is broken, you'll need a new nozzle. If the prong is intact, you'll need a new switch. Here is a link to help with the repair and help you locate the switch.

http://reviews.ebay.com/REPLACING-THE-POWER-SWITCH-ON-ANY-KIRBY-G-SERIES-VACUUM_W0QQugidZ10000000003752018

Hope this helps!

I'm sure you have found a solution to this problem by now, but I am having the same problem removing the nozzle, and just read another persons post where they suggested buying the "Nozzle Clean-Out Tool" available on Hoover's website for $1.00 plus $5.00 in shipping. The part number is 39514001. It worked for this person, so I'm going to try it. Not a big investment, at least, in case it doesn't work!