Question about Porter Cable 345 6" Circular Saw Saw Boss

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Problem with porter cable "saw boss" 6 inch circular panel saw

My Porter Cable SAW BOSS 6" panel saw seemed to be working OK until recently it started running as if it lacked power under even a slight load. I pulled the carbon brushes and noticed they were worn extensively, and even chipped/broken off, on one side of each rectangular carbon brush, while the other side of the brush appeared normal and intact. Inspecting the problem further revealed one segment of the commutator having much, much more carbon buildup than the other segments. I also noticed that the small copper section (triangular piece at the top of each individual segment of commutator) on the troubled segment had somehow gotten pushed up and was therefore WAY OUT of line with all of its neighbors. Upon attempting to gently bring said problem part back down and into line with all its buddies it (not surprisingly) snapped off. Can anyone tell me what I need to do, over and above replacing the carbon brushes, in order to get my saw running normally again? The saw doesn't have many hours on it at all, although it is pretty old I haven't used it much over the years, BUT when I do need a lightweight panel saw for certain jobs I do, the unit is indespensible. Please help thank you.

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You will have to change the carbon brushes of your Saw boss. Secondly, you must also check the condenser with  the help of a Multimeter to check whether there is a proper uniform flow of the voltage in the unit or not.

Let me know for any other further assistance.


Posted on May 28, 2009


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Need a power cord for a porter-cable circular saw model 146

All of Porter-Cable's circular saws have model numbers starting with a 3. Assuming your saw is a 346, Porter-Cable's part number for that cord is 330079-98. If your model number isn't 346 or you can't get that part number, most any nine to twelve foot 14-2 power cord will work on your saw.

Feb 24, 2013 | Porter Cable Saws

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Need to replace the cord. Before I open it up, wanted to verify that it has serveceable connectors inside?

generally they have ring terminals on the switch or the wires need to be soldered to be pushed into and lock into the switch. ON some rare occasions I have seen wire nuts, so you should be OKAY just make yourself a wiring diagram before removing anything, it makes reassembly easier.

Aug 01, 2011 | Porter Cable 345 6" Circular Saw Saw Boss

1 Answer

Where do I find a parts list or be able to get parts for porter cable 6" boss circular saw

Go to

On the left hand side, you'll see a search box where you can enter your model number.

On Delta ' Porter-Cable tools, the model number and type number are usually on the warning label or name plate.
  • These labels are typically found on the bottom or side of the tool.
  • For larger equipment, the label can be found on the top of the equipment.
  • Sometimes the type number is reflected at the end of the model number. The type number can be followed by a " - " or a "T" at the end of the model number. For example: "HFAC3030-1", is a Type 1. "36-450 T2", is a Type 2

Dec 29, 2010 | Porter Cable 345 6" Circular Saw Saw Boss

1 Answer

I want to test the armature to solve a brush arcing problem I have a volt meter. how to do this?

put your test probs on the armature and hold them were the brushes tuch on eather side you should get a reading from all of them "one at a time" check the commutator for burn marks or big gaps,,,if there there scrap the motor,

Aug 08, 2010 | Porter Cable Porter-Cable 6" Saw Boss 345

1 Answer

I have a Porter Cable 345 6" saw "3" series. Do I need to oil this baby?

unless it has a gearbox with a plug, no. the bearing are sealed. where the saw breaks down the middle, the metal part from the plastic part, there is grease in that gear compartment.

Jul 11, 2010 | Porter Cable 345 6" Circular Saw Saw Boss

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