Question about Kirby G6 Bagged Upright Vacuum

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My Brush Roll Stops when lowered

Hi, I have a Kirby G6 and when the hood is up, my brush roll spins without any problem, but when I lower it to start my vacuuming, it stops.  I've taken the roller out and cleaned it as much as I possibly could.  Can anyone help?

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Re: My Brush Roll Stops when lowered

Hi There,

            It sounds like you ready for a new belt, It needs to be a Genuine Knurled belt which has dimmples on this inside for extra grip.


Many Thanks



Posted on Oct 22, 2007

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Should the green light be on while I am using my Kirby vaccum

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.

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I have model#UD40350 total pet compact. The lower vacuum brushes don.t turn.

Hi! It sounds like you have a broken or stretched belt. The belt controls the brush roll. If you are using the vacuum on carpet, you need the brushes to spin to agitate the carpet fibers. Below are step-by-step instructions on how to replace your belt. I have also included a link to the instruction manual if needed.

1. Lay cleaner flat and flip to expose nozzle base. To remove nozzle guard, use Phillips screwdriver to remove the screws.
2. Lift and remove brush roll and dispose of old belt if you see one.
3. Slide belt (style 19) onto motor shaft.
4. Place new belt on area of brush roll without bristles.
5. With new belt in place, pull and slide brush roll into nozzle making sure that the brush roll end caps are in the correct orientation.
6. Replace all screws to replace nozzle guard.

Hope this was helpful!

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If the light is not glowing it means the brush roll is not spinning. The belt may be stretched and need replaced. The brush roll may be installed improperly. The magnet in the brush roll has to be aligned with the indicator light for the light to work when. The brush roll is spinning

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The green light does not affect the performance of your vacuum. There is a small magnet in the brush roll that makes the light glow to show you the brush is spinning properly. If your light worked before you took the vacuum in for service you can look at the brush roll to see if it has been installed properly. The magnet should line up to spin at the spot where the green light is. If the brush is not installed properly or the wrong brush roll is installed the magnet will not line up with the green light.

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Green light doesn't come on

The green light means the brush is spinning. Your brush roll may be bound with hair or debris and/or your belt may be stretched out and not spinning the brush fast enough. Belts should be replaced at least twice a year.

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The green light on my Kirby Ultimate G is not on but brush is spinning suction is pick stuff up. Is there a light bulb or a bigger problem?

You are referring to the green led light on the front of the machine that tells you the brush is rotating? this is operated by a small magnet on the brush roll, when rotating it generates a small current to bring the light on. Remove the brush roll and check for damage behind the green led inside the case, also check for the magnet on the brush roll, ensure it is not missing and the brush roll is in the correct way round, magnet needs to be at green led end (ie to the left)
Magnet is fitted flush within the brush roll close one end and is around 6mm 1/4" diameter.
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Kirby g4 vaccum

please clarify what you mean?
Do you mean motor bearings or brush roll bearings?
brush roll bearings can be adjusted to lower the brush closer to the carpet when worn.
to do this remove the front brush assembly, there is usually a sticker below the belt hole showing RED = POSITION 1 HIGHEST (ie a new brush roll)
GREEN = POSITION 2 MIDDLE (brush part worn)
BLACK = POSITION 3 LOWEST (brush fully worn)
At each side of this there are 2 clips unlock these and remove the bottom cover.
Release the belt tension by rotating the belt release at the front.
Before removing the brush roll, at each end of the brush roll there is a grey plastic bearing carrier (Square at the ends) MARK this with a pen or marker just so you know the original position, also look closely for the coloured markings as indicated above or numbering 1,2 or 3.
If RED or "1" is showing you need to remove the brush roll by pulling it out and rotate the endcaps to Green or "2" and re-insert the brush roll, If Green or "2" is showing then rotate the endcaps to Black or "3" and re-insert.
If Black or "3" is showing then the brush roll is worn and cannot be adjusted any more, fit a new brush roll and insert with RED or "1" showing.
To re-attach the belt, move the belt to the middle of the roll and rotate the belt knob at the front ensuring the belt engages with the hook on the inside.

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2 Answers

Do i want the green light on or off on kirby upright

It has nothing to do with the green light. Green light simply indicates that brush roll is spinning. If there is no green light:
1 - belt may be broken
2 - Improperly installed nozzle
3 - wrong brush roll is installed

Properly adjust the nozzle - turn the Kirby on. Keep lowering the nozzle till it touched the carpet and you will hear change in sound. Then lower it by one more click.


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How To Replace Brush Roll Belt
NOTE: Turn off the switch and unplug the electrical cord
before replacing belt. Belt pulleys can become
hot during normal use. To prevent injury, avoid
touching the motor shaft when checking the belt.

1. Lower handle to floor to change belt.
2. Loosen, but do not remove, two screws to release hood.
Lift hood to remove.
3. Lift left end of brush roll.
4. Remove and discard belt.
5. Place new belt around motor shaft.
6. Place belt around brush roll pulley.
7. Align left end cap with base. Push end cap
securely into place.
8. Pull right side of brush roll to stretch belt.
Secure right end cap into base.
9. Rotate brush roll to seat belt.
10. Replace the hood. Make sure hood front is
behind furniture guard. Hood should seat
onto self-locating screw tabs.
11. Tighten screws.

You can goto this website enter in the model number 4688 and you can see detailed pictures of how to change the belt as well as print off a new user manual.


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2 Answers

Brush roll slows/stops turning

when you removed the beater brush did you clean all the lint and threads off the ends of the brush? you can unscrew one end of the beater brush plate to clean the crap off it. Inside the beater brush are two ball bearings. Use a light machine oil to lube these two bearings. re-assemble the rod and end nut. then put your brush back in the machine and note which direction the belt needs to be installed. there'll be an arrow on the motor housing.

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