20 Most Recent Hoover U6630-900 WindTunnel Bagless Upright Vacuum Questions & Answers

The correct belt is a 38528035. If the belt does not have this number printed on it, it is a generic belt and probably the wrong one. The pulley on the transmission is "convex" because this pulley design keeps the belt running in the middle. (a belt will always try to "climb up a hill") If the motor shaft and the pulley are not aligned properly, the belt will constantly throw off. This can be a result of a bad motor mount (located inside the motor compartment.) The motor shaft end has a rubber cover that absorbs vibration and keeps the motor positioned squarely. The handle could also be loose on the pivot. It is held down by two metal clamps that screw securely to the bottom, holding the handle on to the base and allowing for the handle to pivot backwards. This problem can be difficult to diagnose and I have had many in my shop for repair. It takes a seasoned and experienced repairman to find a solution to this problem, in most cases. The disadvantage I have here is that I cannot see your machines to inspect all the various things that effect the belt alignment. I hope that some of this information will help.

The adjustment knob on the hood of the machine is a plastic "arm" that prevents the belt tensioner from tightening up the v-belt so that the roller will stop or start. If the knob is adjusted while the handle is back, it can break the plastic arm off and then the function will not work. This knob should only be adjusted with the handle in the upright position. Usually, if the arm is broken, the roller will still turn when the handle is lowered and will not turn off when the knob is selected to the bare floor. If the brush roll will not switch on , it is usually a problem with the belt(s). You should replace the belts yearly. They can look fine, but be worn out.

thats why the brushes wont turn,, the belt is slipping put a new belt on then try again,,,

i think you have pulled the cable end spade terminals off the connectors on the side of the cable drum.

There is an idler pulley that takes up the slack in the V belt when you pull the handle back to vacuum. Make sure it is engaging properly and the V belt is installed correctly.

Unfortunately you machine is a re manufactured vacuum and has a 6 month warranty. (The RM suffix indicates this ) You should take it to your local vac shop and let them look at it. It's probably a minor issue.

I would definitely check out the epoxy route.

See if you can pick up a nylock nut for the pulley. As long as your nut is a standard thread and not a reverse thread fastener.



These nuts are self locking.






This product Devcon Plastic Welder is the best plastic repair material I've ever found. Cures in minutes,can be drilled and sanded in hours. Great stuff to fix the hole in the plastic cover.

I'm not sure what you mean by "Common Pulley". There is a flat belt that goes from the motor shaft to the big round pulley on the transmission. There is also a "V" belt that goes from the transmission to the brush roll. You have to be careful how you install the "V" belt because it has a pulley that takes the slack out of the belt when you pull the handle back if you have the lever in "Carpet" position. The belt does not get tight until you pull the handle back which leads many people to believe the belt is too long or the pulley is not working properly.

Hoover Windtunnel Self-Propelled Vacuum Belt ... - YouTube

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www.youtube.com/watch?v=AJL9McF7MAU
May 22, 2012 - Uploaded by Crucial Vacuum Fits: Hoover U6423-900, U6425-900, U6425-920, U6429-900, U6430-900, ... U6616-900, U6617-900, U6625-900, U6626-900,U6630-900, ...

The belts may look fine but may be stretched and worn. Replace them. Make sure brush spins free. Idler pulley should tighten belt tension when handle is released

Hello! We recommend taking your vacuum into an authorized service center to have your on/off switch repaired or replaced. Follow the link to locate the nearest service center to you. Service Center Locator

Thanks!

Independent sewing and vacuum, or sew & vac stores, typically carry a wide selection of belts. Be sure to know your model number of your vacuum, even if you have the old belt, as they stretch considerably and can be difficult to match an old belt with a new one.

Check all the pipes, there could be something stuck in them which hasn't come out.
Also check the base of the vacuum if there is something stuck in the base.
Lastly check if there are any leaks in the pipes.
Also check the suction without using the handle, by pulling the pipe in your hand and see if it has more suction.

This is a good start, try this link...

Product Manual Search

Check your power cord and power supply, check the plug is clean and free from corrosion or dirt.
Plug another appliance into the same socket to check there is power at the socket.

Note: Electricity can cause serious injury even Death.
Isolate your power supply from the mains switchboard.
Switch off and Unplug your appliance from the wall socket before attempting any repairs.

If its still under warranty, take it back to the store or manufacturer for replacement.
Call a serviceman to test the appliance for you,

If not you could...
Check your fuse in the device, you will have to dismantle the appliance. Some of them have a fuse to protect the motor.

Get your Multimeter and do some tests...
Test the flexible cord connections
Electrical tests included, visual inspection, Earth continuity, Polarity and Insulation resistance.

Examining cord for Damage
Disconnect flexible cord from power supply.
Check cord along the whole length for obvious damage

1: Visual Inspection
A visual test is necessary before using test instruments to ensure that all specific safety requirements are meet.
Check the general condition and safety of the cord, plug, cord anchorage, terminations and of the appliance itself.

2: Earth Continuity.
The earthing system of an electrical installation must be installed in a manner that will allow circuit protection devices to operate if there is a fault between live parts (other than Neutral) and the mass of earth.
What to check: For class (one) 1 protectively earthed appliances only, test for very low resistance between exposed appliance metalwork and the earth pin of the plug. this resistance should be as low as possible and must not exceed 1 ohm. Note: the Exposed metal parts of a class 2 double-insulated appliance must not be earthed.
Equipment requirements:
A Multimeter (Digital or analogue) Set on a ohm scale or an insulation tester that also has a continuity scale.
A set of leads.

3: Polarity
Why is this test necessary:
An incorrect connection of phase and neutral conductors to fittings and appliances is extremely dangerous and has been the cause, either directly or indirectly of many shocks and fatalities.
What to check:
Polarity tests are carried out to ensure that every single-pole switch operates in the active conductor or the circuit in which it is connected.
Equipment requirements:
A Multimeter (Digital or analogue) Set on the resistance scale when the SUPPLY is NOT connected.
or a voltage indicator set on a suitable voltage rating when the supply is not connected.

4: Insulation Resistance
Why this test is necessary:
All live conductors (including Neutrals) and live parts must be insulated to prevent - Electric shock hazards from inadvertent contact.
- Fire hazards and equipment damage from short circuits.
What to check:
Insulation resistance tests must be made between:
- Active conductors of a poly-phase circuit
- Active and Neutral
- Active and Earth
- Neutral and Earth
The insulation resistance between appropriate components shall be not less than 1 mega-ohm minimum
Equipment requirements:
An insulation resistance tester which maintains an output of 500 volts when loaded with a 1 mega-ohm resistance.
A set of leads.

Different countries adhere to spicific Electrical (safety) Regulations and standards

This information is only intended to enlighten the novice, guide and remind someone already in the field of electrical installations.
DO NOT attempt any electrical repairs unless you have the appropriate background or training.