Question about Riccar 8850 Vacuum
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Posted on Jan 02, 2017
On the belt end, there is a clip #59 to remove then you can take the brush roll apart, replace the brush strips and put it back together.
Posted on Jan 11, 2009
SOURCE: Riccar 8700 Brush Roll
I will attempt to walk you through the belt change on your Riccar 8955 upright vacuum cleaner. I have taken pictures for you for each step to ensure that it's done properly. What you'll need to have handy for this repair;
- Phillips Head Screw Driver
- Riccar 4000 / 8000 Series Belt
- Riccar 8000 Series Roller Brush With Clutch Assembly (only if the brushes have worn down, not necessary if brushes are still long)
Step 1: Make sure the vacuum cleaner is unpluged, and turn the vacuum cleaner upside down so the bottom plate is upwards. It's easiest to do on a work bench or counter top.
Step 2: Unsrew the two metal screws on the metal bottom plate with your Phillips head screw driver, and remove the bottom plate from the vacuum cleaner so the belt is completely exposed with the roller brush.
Step 3: Remove the belt guard that sits to the left of the roller brush, and is a metal part that protects any dirt & debris from going over to the belt. Here's a picture of that part being removed;
Step 4: Remove the Rug / Floor actuator arm from the clutch on the right hand side of the roller brush. Simply pull the metal actuator arm to the left of the brush and out of the circle that it sits in. Here's a picture of that;
Step 5: Once you have removed the actuator arm for the clutch, as well as the belt guard, lift staight up on the roller brush and remove the roller brush from the vacuum cleaner:
Step 6: Once you have removed the roller brush, and the old belt from the vacuum cleaner, take one new belt and wrap it around the metal pin in the back of vacuum cleaners agitator housing. Here's a picture of where that pin is located with the belt wrapped around it;
Step 7: Once you have the belt wrapped around the metal pin (this is the shaft to the motor that actually spins the belt), but the other end of the belt through your new roller brush;
Step 8: There is a specific way that the roller brush has to be inserted. If the roller brush is not put in properly, this can cause all sorts of problems including the brush not spinning, and continously having to replace belts. You can see on the end cap of the roller brush (the right side where the belt rides) that there is two little teeth that protrude out of the end cap as well as an indentation on the opposite side;
Step 9: With the roller brush inserted through the belt, posistion the two teeth facing downwards. You can see in the vacuum cleaner where the roller brush sits, a little groove down inside of the housing. These two teeth need to straddle that groove. Also make sure that the little ring, or circle that the clutch actuator arm sits into, is facing upwards completely. It should be directly on top of the two teeth. Stretch the belt using the roller brush as leverage down into the agitator housing of the vacuum cleaner, making sure that the two teeth are facing downwards straddling the little groove. After the brush is back into the vacuum cleaner, take the metal actuator arm from the rug / floor switch, and insert it back into the metal ring (or hole) on the roller brush;
Step 10: Replace the metal belt guard that rests to the left of the belt. You'll notice on the belt guard that there are two little 90 degree notches on both sides. These notches need to face towards the belt or to the right. Here's a picture of the belt guard being put back into place;
Step 11: After inserting the belt guard back into the vacuum, turn the vacuum cleaner over so the top of the agitator housing is facing you. Change the the rug / floor switch from bare floors to the carpet setting, and the turn the vacuum upside again so the brush and belt are exposed:
Step 12: With the vacuum set to the carpet setting, pull the belt forwards to ensure that the brush is spinning freely. If the belts do not spin freely, repeat steps 2-10.
Step 12: There is a flap that can be opened after the metal bottom plate has been removed, that will give you more access to the motor shaft. Make sure that this flap is closed;
Step 13: The last tricky part can be reinstalling the metal bottom plate. There is a little lip on the front of the vacuum cleaner that the edge of the bottom plate has to slide under for it to be installed properly. A lot of people just install the bottom plate over top of this lip, and this prevents the brushes from hitting the carpet as low as if the bottom plate is correctly installed. Here's a picture of the lip with the bottom plate in the backgroud;
Step 14: Slide the metal bottom plate into the lip on the vacuum cleaner, and fasten the screws back into the bottom plate to secure it. The lip is a little tricky, but after doing it just once, you'll have no problems in the future changing your belt.
Here's a picture of the bottom plate installed INCORRECTLY with the bottom plate over top of the lip;
Here's a picture of the CORRECT way to install the bottom plate:
I hope that this repair solution is helpful to you in installing the belt properly. If you found this helpful, please be sure to click the Thumbs Up Icons in the lower right hand corner of the solution. Feel free to request a clarification of the repair if you have any questions about this repair, or other repairs. I'm always happy to answer any questions.
Thank you very much,
Posted on Mar 21, 2010
SOURCE: roller does not turn
When a Dyson DC07 makes this horrible grinding noise, it can only mean one of three things.
The Dyson DC07 uprights use a clutch mechanism to control the brush spinning when you change the floor / carpet switch. When you hear this grinding noise, it's actually the clutch slipping because it can not spin the roller brush. Most other uprights use a belt to spin the roller brush, and if something is stuck in the roller brush it will cause the belt to break. Dyson's however will make that awful grinding noise rather then breaking the belt, and will only make that noise if the roller brush can not spin.
When you hear this noise on a Dyson, it can only be 1 of 3 things. Either your clutch mechanism itself has gone bad, or the roller brush itself was not properly put back into the vacuum, or the brush itself has gone bad.
I'll be happy to walk you through step by step on how to diagnosis this problem and find out which one of these two parts is bad on your vacuum.
Step 1. Make sure the vacuum is unplugged. Then turn the vacuum upside down so that the brushes are facing up. It's easiest if you put the head of the vacuum on top of a bench, or counter top. This is how the vacuum should look:
Step 2. You see on the bottom of the vacuum 3 plastic screws that are usually the same color as the vacuum cleaner. If you're vacuum is purple, the screws will also be purple. Use a flat head screwdriver, and turn each of the 3 screws a half of a turn, counter clockwise to loosen then. After each screw has been turned (you don't need to remove the completely, just a half of a turn is all), simply pull upwards on the bottom plate to remove it.
Step 3. You should now be able to see the roller brush exposed. You'll now need to remove the roller brush. This will take some patience, and some work in order to get this brush out of the vacuum. There is a special tool that has been designed to help you get the brush out easier. I would try getting the brush out first before buying this special tool. The easiest way is to use a flat head screw driver and pry the belt up while pulling up and out on the brush. With some patience and some maneuvering, you'll be able to get the brush out of the vacuum. Here's where you should put the flat head screw driver on the brush:
Step 4. Once you get the belt out of the vacuum cleaner, it's time to test it. Use your finger tips to hold just the end caps on the very end of the roller brush. While holding just the end caps, use your thumbs to try and spin the roller brush. Does the brush spin freely? It should rotate completely several times on each spin. If the brush doesn't spin, or you feel some kind of resistance to the brush spinning, then this indicates that your roller brush has gone bad. Here's a picture of how to test the brush:
If the roller brush went bad, then you'll need to purchase a new one. Here's a direct link to the roller brush your machine uses on our website GoVacuum:
If the brush however was able to spin freely, and it spun multiple times, this indicates that most likely the brush was not put back in properly, or it could be a little more serious of problem in the clutch itself has gone bad. The clutch replacement repair is a much longer, more challenging repair to do. There is a very helpful video on how to replace the clutch below so that you may follow step by step instructions on how to change it. It was really helpful for me the first time I did this repair.
I think more likely however it's probably that the brush was not put back in properly, and this caused the brushes not to be able to spin, which would cause the clutch to make that horrible noise. Make sure that the roller brush is pictured like the brush above, you may also want to make sure that the bottom plate is put on correctly, this could also prevent the brush from spinning:
Here's a picture of the WRONG way to install the bottom plate. Notice the gap in between the two housings:
Here's another picture, that is the RIGHT way to install the soleplate:
If you need to replace the clutch, here's a direct link to the clutch your Dyson DC07 uses on our website:
Here's the video on how to replace the clutch:
When you hear that grinding noise, it can only be one of these three problems. This clutch mechanism was so problematic that Dyson removed it on the second series of the DC07 models. I hope that this repair was helpful in diagnosing your problem. If you have any questions about the diagnosing, or the clutch change, please feel free to use the Clarification Request form here on the Fixya repair page. If this was helpful you, please be sure to rate my repair as helpful by clicking the thumbs up icons.
Posted on Apr 07, 2010
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