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Re: remove brush motor
First pry out the lens over the headlights. under the foil are two screws holding the top cover on. just lift carefully and the back of the cover pops off. the motor is easily removed, just one screw holds it in place.
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May be a burned out collector of the armaturebetween the brush holder and armature ballbearings are maybe poor change the motor , and replace allways 2 brushes if its possible because 1 fieldcoil stator of the motor should have a problem if 1 brush is shorter than the other brush there is a disbalans with 1 long and a short brush , in the early years 50 60 or the more expensive vaccuums like Kirby 600 W motors
it is useful to change brushes buit in 60% of the cases you lost the brushes again in 1 month .
The brush roller is driven by a belt installed on the motor shaft. The belt could be broken or off the shaft. The brush roller could be clogged inside the end caps with debris which prevents rotation. To solve the debris problem, it will be necessary to remove the belt from the motor shaft, then note the orientation of the end caps and remove the brush roller. Next, remove one end cap and check for clogging material. Remove the material. Slide the brush roller shaft away from the end of the brush roller to check for clogging material at the opposite end. Remove the material. Slide the brush roller shaft back into position and reinstall the end cap. Reinstall the brush roller in the correct position. Reinstall the belt. Check for proper rotation of the brush roller.
Is it an upright? On mine it's very simple. Unplug vacuum and lay it on floor so that you are looking at the rotating brush. Remove screws that attach the cowling. Remove the cowling. You will then see the rotating brush ends. One end will have the belt, or what's left of on the brush wheel. You will also see the motor shaft. The belt goes between the shaft and the brush wheel. Carefully remove the brush by holding both ends and pulling straight out. Place the new belt on the brush wheel and replace the brush. With the belt on the brush wheel, stretch it to fit on the motor shaft. Rotate the brush to make sure the belt is riding correctly at both ends. Replace cowling and screws.
You have already removed the screws so lift the brush cover off. Then grasp rotating floor brush at both ends and lift. Clean strings,hair and other debris from rotating brush, paying close attention to the brush ends. Clean the debris from motor pulley and drive belt areas.Grasp old drive belt and remove from motor pulley. Place new drive belt over motor pulley and stretch other end over rotating floor brush in the space between the bristles. Place the ends of the rotating floor brush down into slots on the sides. Turn the rotating floor brush by hand several times in the direction of motor pulley. If installed properly, drive belt will center itself on rotating brush. Reposition brush cover and screw back into place. I hope that this helps you!
Check the piece of flex hose between the vacuum body and the power nozzle. This will sometimes get a blockage in it, causing varying motor speeds.
You can remove the tube by grasping it firmly and pulling from the power nozzle. Then twist clockwise to remove it from the vacuum body. Clear blockage with a wooden spoon handle or similar blunt object. Insert tube into body and twist counter-clockwise until tight. Insert other end into power nozzle about an inch, or until it stops.
Another thing to check is the foam filter at the bottom of the bag well. Remove and replace if necessary. If a new one is unavailable, the vacuum can be used until you get a new one. Or rinse the old one out and allow to thorougly air dry before using. Also check the screen covering the motor intake and clean if needed.
Also, if your machine is fitted with a afterfilter on the lower side of the tank, this may need to be removed if dirty.
The entire brush and holder assembly has to be purchased/replaced. That's the plastic piece that screws on to the motor. I don't think you can even get brushes for their machines anymore.
Remove screws. Remove plastic piece from motor. Replace.
You need to know that very seldom will new carbon brushes alone `FIX`a motor in todays vacuums as they are higher RPM than those of 30 years ago. On a salvageable motor a good rebuild procedure will generally include repacking bearings, cleaning suction fans and reseating new brushes with an abrasive seating stone at low speed with a motor run in device with variable voltage
That said, I have not done a HENRY in years but it likely will contain a generic AMTEK Lamb type motor as it is sold as more durable vac. On a traditional vac motor, carbon brushes are removed by releasing a clamp over the brush. The brush holder will have either a flag terminal on it where the wiring will disconnect from the side, or a flat flag terminal which slides into a pocket on the carbon brush housing. . If you are going to the trouble of replacing the brushes, remove and inspect the old ones for wear and chipping. Also inspect the commutator surface on the motor where the brushes contact. If there are any curved gaps between segments, or if the com is worn like an apple core , you need a motor complete. If the motor has simply worn to the point where a brush has stuck or worn to nothing, you may be bale to reseat the new brushes, however any evidednce of BLUE sparks or noise is not a good sign . Best of luck. Post back if you need more help
If you can see the arcing you are likely in the motor housing. The brushes are specific to the motor depending on RPM. Most brushes and motors in Sears units are supplied by AMTEK Lamb. The color on the plastic housing and stamped model # on motor will help identify the correct carbon brush, however new brushes will NOT always solve your problem if the motor is arcing. If the armature is worn like an apple core or if the lines between segments on the copper commutator are gaping and not parallel you will need a new or rebuilt motor. If brushes are properly removed there is a tiny flag terminal which will slide out of most brush housings where the wire meets the brush itself. New brushes are best installed after dressing the armature surface with a fine carbarundum seating stone or very fine wet dry sandpaper and then the motor is run in at half speed at reduced voltage. |There is usually a hold down clamp over each brush to seat it and a lock tab underneath to align the new brush.
The horizontal spinning side brush is a known failure item in those units. Chances are the side brush motor has gone bad. Check first to make sure that the motor isn't just bound up with hair or something. Fortunately, it's easy to replace and relatively inexpensive.. See this video link on iRobot's site: http://www.irobot.com/hrd_right_rail/roomba_rr/roomba_fam/RoombaFam_rr_howitworks.html
Click on the bottom link in that video to see how to remove the bottom plate and remove that side brush motor with just 2-3 screws. New motors are available from iRobot for $15 or from places like www.RoboticVacParts.com for ~ $10 links here: