20 Most Recent Porter Cable 3" x 21" Electronic Variable Speed Sander Questions & Answers


I've never had any particular problems with norton belts. All belts will require some adjustment as they wear in,however.
Try this: Put a new belt on, turn the sander upside down and rest it on the front handle. Get a good grip on the rear handle and turn it on while you use your other hand to turn the tracking adjustment. Just center the belt on the drum. I don't know what the manual tells you to do, but that's what matters, that the belt rides across the platen without hanging out loose in space or running up against the housing of the machine. If it does ride in against the housing, and you don't track it away, eventually you'll have a groove worn right through the side of the machine.
If you try this, and it still doesn't work, make sure the drums are secure and look right. Is it possible the machine was dropped and the drum bent? If so, parts will have to be replaced.
The only other cause I can imagine is that there is some kind of something jammed inside the housing that is protruding into the belt pathway that they're getting caught on, but that seems unlikely. Check anyway. Look with a flashlight.
There are better belts available than Norton, but they should work.
Some belts have an arrow on the inside of the belt indicating the direction of travel. Make sure if yours does, that you put it on that way. I try to install them so the joint will tend to ride up over the work instead of the work tending to want to tear the joint apart, but this is not always obvious, depending on the mfr.

I hope this information allows you to resolve this issue. If you need further assistance, please post back with a comment to this thread. If I've managed to answer your question or solve a problem, please take a moment to kindly rate this post....thanks!

Porter Cable 3"... | Answered on Sep 25, 2011


You need special pullers for these, you will have to take it to a power tool repair shop.

Porter Cable 3"... | Answered on Jan 27, 2010


the inside of the tool is full of dust not allowing it to get into the bag. I have had to completely disassemble and clean the track for the dust. You can try blowing thru every port with compressed air and see if that helps.

Porter Cable 3"... | Answered on Nov 10, 2009


image.gifpower cord stuck in rear wheel of power sander

Porter Cable 3"... | Answered on Jun 16, 2009


check brushes or maybe the armiture is bad.

Porter Cable 3"... | Answered on May 10, 2009


I would start with the carbon brushes they are easy to replace and you should be able to pick them up at any lowes or home depot

Porter Cable 3"... | Answered on Dec 04, 2008


dust collectors usually work off the motor via a fan. Either the fan is broken or the bag is blocked up.If the bag is too dirty inside you don't get any airflow through the bag which can stop it collecting. A good wash should do the trick

Porter Cable 3"... | Answered on Sep 19, 2008


I also have a PC Model 136 belt sander. Although I don't do a lot of woodworking, it has proved to be a workhorse when I needed it. I don't have a problem with breaking belts - the last ones I bought at OSH. The problem that has developed with mine is getting the belt alignment adjusted, after a belt change, to not run against the sander body. A little banging (with my hand) will correct the problem. I have serviced it to free up the fulcrum, but it still jams most of the time. This doesn't address your problem, but it is good to hear of someone else who appreciates the fine older tools. Just a further thought - the newer belts I have purchased are bi-directional, e.g., they will run either way. I know that the older belts had to run one way and running them backward could - almost surely would - cause them to break. I won't insult your intelligence to suggest that that might be your problem.

Porter Cable... | Answered on Oct 16, 2020


The brushes are not replaceable - it is an entire motor assembly.
1) remove the 2 screws holding the top handle on
2) remove the 2 screws on the top of the housing (front either side of switch)
3) remove single screw holding cord hook (rear side of housing)
4) remove small torx screw in the shaker handle and remove the handle
Flip over and using a screwdriver begin to pry the top cover off the housing (easiest to get the front side off first)

Porter Cable... | Answered on Feb 02, 2019


any word on type of nailer?

Porter Cable... | Answered on Oct 24, 2018


first you need to remove the tank and get rid of the rust with a rust kill agent, vinga or chemical type with corrosive converter, then liquid paint the inside of the tank, swilling the paint inside and leave to drip out. then find a high pressure line filter, these are a solid filter and put in line. to stop this happening again to the tank you can also put a drop valve in place and when not in use press to release the air inside as this is what rusts the tank. but after the restoration it should be fine without a filter.

Porter Cable... | Answered on Jan 03, 2018

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