Porter Cable 690 Troubleshooting Advice - Router Forums
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post #1 of 15 (permalink) Old 09-12-2014, 05:21 PM Thread Starter
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Default Porter Cable 690 Troubleshooting Advice

I picked up a free PC-690 variable speed with a plunge base and no other accessories or manual. I brought it home and fired it up. It ran ok on low speed then turned it off and fired it back up and then switched to high speed. It ran a few second and slowed then stopped. While it was running I noticed a small amount of blue sparks comng from the top just before it quit. I have seen motors do this a little but this was a little more than normal. I don't think it had been used in quite awhile. Just curious where I should start looking before thinking of sinking money into parts.
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post #2 of 15 (permalink) Old 09-12-2014, 05:34 PM
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I picked up a free PC-690 variable speed with a plunge base and no other accessories or manual. I brought it home and fired it up. It ran ok on low speed then turned it off and fired it back up and then switched to high speed. It ran a few second and slowed then stopped. While it was running I noticed a small amount of blue sparks comng from the top just before it quit. I have seen motors do this a little but this was a little more than normal. I don't think it had been used in quite awhile. Just curious where I should start looking before thinking of sinking money into parts.
look to the brushes...
believe you need a cleaning also...

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
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post #3 of 15 (permalink) Old 09-12-2014, 05:40 PM Thread Starter
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I took one brush out. Im not sure I can tell if it is good or bad. but the router looked well used and a little grimey.
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post #4 of 15 (permalink) Old 09-12-2014, 06:16 PM
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I took one brush out. Im not sure I can tell if it is good or bad. but the router looked well used and a little grimey.
take the brushes out and clean the commutator ...
how long are the brushes???

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
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post #5 of 15 (permalink) Old 09-12-2014, 06:24 PM
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Agree, tear it down and clean it and put two new brushes in it. The 690 is a great router.
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post #6 of 15 (permalink) Old 09-12-2014, 06:46 PM
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Default 2 speeds?

I have 4 690s. None of them have more than one speed. Is this a old model or a very new model?

I have replaced the bearings before. Its not too hard to do. If you hear a squeak when you spin it by hand. Your about due. $20 for the bearings on ebay.

Al
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post #7 of 15 (permalink) Old 09-12-2014, 07:18 PM
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I took one brush out. Im not sure I can tell if it is good or bad. but the router looked well used and a little grimey.
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This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
Stick486 is online now  
post #8 of 15 (permalink) Old 09-12-2014, 08:44 PM Thread Starter
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I'll check the length and get back and it has 4 speeds.
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post #9 of 15 (permalink) Old 09-12-2014, 09:34 PM
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Originally Posted by Al B Thayer View Post
I have 4 690s. None of them have more than one speed. Is this a old model or a very new model?

I have replaced the bearings before. Its not too hard to do. If you hear a squeak when you spin it by hand. Your about due. $20 for the bearings on ebay.

Al
That was my question , as I have a PC690 and it's either off or on

I don’t always insulate , but when I do .
Ok ,I never insulate
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post #10 of 15 (permalink) Old 09-12-2014, 11:34 PM
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Originally Posted by Al B Thayer View Post
I have 4 690s. None of them have more than one speed. Is this a old model or a very new model?

I have replaced the bearings before. Its not too hard to do. If you hear a squeak when you spin it by hand. Your about due. $20 for the bearings on ebay.

Al
it's probably 690LRVS in plunge base making it a 694VK....

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
Stick486 is online now  
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