Question about Porter Cable 332K Quicksand Random Orbit Sander W/ Case

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Need help disassembling Porter Cable random orbit sander

I have a Poerter Cable 333VS random orbit sander. It would appear it needs new brushes, but I am having a little trouble knowing how to disassemble it so I can check the brushes before ordering them. Couldn't see the answer on the on line user manual.

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  • johnmoran73 Feb 23, 2009

    I too have a porter cable model 333 random orbit sander. The speed of the pad slows almost to a stop when applied to the wood with any pressure. Is this problem the belt? It couldn't be the bearings could it? There is no sound like a slipping gear when this happens.

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Go to Dewaltservicenet.com and in the center of the page under needing parts type in your tool model number it will take you to another page and scroll down to the type 1 or 2 and click on it. It will bring up an exploded view of this tool. Why do you think that you need brushes? usually I have to replace the bearings and the brushes are pretty durable. Let me know if I can help further

Posted on Jan 21, 2009

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Installing brushes in porter cable 7336


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I just had the same problem. I couldnt find any information online.
call the toll-free help line
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My 5" random orbit sander model 333 is spinning out of control. What do I do?


I may not have the whole picture, but all random orbits spin wildly if they are not pressed onto the wood a little. Do you mean it is not oscellating, but just spinning when it is on the wood? That would be an issue requiring cleaning or repair, otherwise, just don't turn it on until you have placed it on the wood to avoid marring.
Farmerbear:)

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Dewalt d26451 type 1 random orbital sander. why does this sander jump around on the material and feel like it's fighting me all the time instead of sanding smooth and easy?


I have the same problem with a Porter Cable orbital sander I recently purchased. Whats happening is the sander is catching the edge of the board you're trying to sand and jerking back and forth as the sander base spins. It seems that if the board your're sanding is at least as wide as the sander base, the problem goes away, which does little good because there will be many times I we'll need to sand wood that is less in size. But you may try using a lesser grit sandpaper and see if that alleviates the problem somewhat.

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Slows down and looses power intermettently


you need new brushes or clean out the holes they go in so they move freely

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I have a type 2,#92 heavy duty sander,length of right angle sander is 14".. approx 35 years old............need brushes. whee can I find these please...


First try Black & Decker Serves Department. At some Hardware stores (ACE, True Value, etc)they stock brushes in the back room.

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Porter Cable Random Orbital Sander rotates but does not "orbit"


Just solved my problem with Porter Cable 333 orbital sander which just groaned. I thought the worst. I carefully took it apart on the garage floor and immediately suspected it needed lubrication as the motor turned hard. I used my flexible long plastic tube lubrication and put some on the bottom bearing shaft the best I could. I worked it around and around. I began to feel it turning easier. I applied more oil and kept moving and it became completely free. I put a drop on the top bearing even though it was loose. I put it all back together and it works like new. Lesson: do not look for the worst when a tool quits. Suspect the culprit to be lack of lubrication!!!

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My Bosch 3107dvs random orbital sander stopped working. The screw that holds the sanding disk stripped the part that it screws into. I can't tell from the exploded parts diagram, which part I need to...


Drawing REF: http://www.ereplacementparts.com/bosch-3107dvs-0603310639-random-orbit-sander-parts-c-128_1044_1230.html

To remove the Dust Fan/Coupling Assy. I did the following: I disassembled the plastic housing, removed the Backing Pad Pos. 733 and Dampening Ring Pos. 51.

It seems the Star Washer Pos. 29 holds Bearing Pos. 30. onto the armature shaft and the Coupling Pos. 27 seems to be stuck in Bearing Pos.29. I used a 30mm long M7 hex-head bolt and 11mm ratchet turning clockwise (std RH thread) to pull the Coupling and Star Washer off. Luckily, there was enough thread left in the coupling to do this gear-pulling action with the longer bolt.

To remove the rest of the Fan Assembly I removed the 2 screws Pos. 43 holding the Brush Holder Assembly, Noted the position and removed the Spring Clip Pos. 32, then removed the Armature w/ Fan and Dust Fan/Coupling Assemblies. Firmly gripping the armature I was able to remove the Dust Fan from the armature by turning it clockwise (LH Thread).

Now that I have removed the parts and believe I will be able to reassemble them, I have ordered a new Dust Fan/Coupling Assembly.

I hope this helps someone else having a similar problem.

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