Kirby 3g I have a kirby 3g about 4 yrs old and when I push it forward it just takes off, how and I adjust the tranny to control it better. Jeff

Contact Kirby direct

Sentria - The Kirby Company - Kirby Vacuum

https://www.kirby.com > earlier-kirby-models > sentria

The Sentria Model includes softer lines and gentler curves on its design, giving it a sleek and soft look. The handle was redesigned on this model to provide ...

Make sure the emptor at the. Bottom of the bag assembly is turned all the way clockwise. It pushes in on lever on the switch. It won't run if the lever is not pushed all the way.

I sold vacuums for almost 20 yrs and the Kirby gets lots of complaints. The transmission that it has in it breaks as your has and they are costly.The best thing to do would be to take the maching to the local vacuum store(eg. sewing and vacuum are often in the same store).Bring it to a used vac store and they all repair kirby and thay can give you the best advice. I dont recommend going to kirby as thay will spend four hours at your house trying to sell you a newer model and they have not changed enough to get another one in hopes it will be betrter. Good luck

Check the wheels and axles for damage or bent shafts. Remove the bottom cover and inspect the brush roller for damage--breakage of the roller, bad or broken end bearings, missing brush sections, or something stuck to the roller like a wad of gum or something. Hope this helps!

Adjust the height of your brush.

go to kirbvacuums.com and look up your model number ,they might even have a toll free number you can call

Jon,
Here is a helpful link to use to adjust the tranny. About a 7 on the difficulty level.

http://www.greatvacs.com/Kirby%20Transmission%20Adj.shtml

Marci

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 the lever it the very back of the machine is in the on or drive position, make sure the height is up high enough ( the higher the better as long as it is still cleaning - lower is not better ) and change the belt even if it isn't broken they can stretch out in less then a year of use.

do u put it on drive or neutral? does the wheels spin when on drive? is the height adjuster on the right level?