PorterCable 890 become HOT. Can I fix it ? - Router Forums
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post #1 of 30 (permalink) Old 08-12-2010, 08:07 PM Thread Starter
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Default PorterCable 890 become HOT. Can I fix it ?

PorterCable 890 become HOT. Can I fix it ?

Model 891
8902 Motor
Serial number 994866 20062949

Recently, morter unit become very hot.
Do you guess what bad parts are ?
Is it possible for me like no-mechanical-knowridge-person to fix it ?
Or is it possible for me to get that parts ?

I am sorry if same topic already posted.



Dewalt-US told me a company in Japan.
But, that company tells me that has no handling on PorterCable products.
They say they ask another company(*1) to fix it.
How complicated ...

(*1) This company is in "Summer Holiday" now.
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post #2 of 30 (permalink) Old 08-12-2010, 09:04 PM
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Hi Benny. First off, I would try cleaning it. Just blow some compressed air thru it in an effort to clean the sawdust out of it. If it's plugged, no air flow thru it will cause excess heat.

Brian


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or by imbeciles who really mean it.

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post #3 of 30 (permalink) Old 08-13-2010, 06:40 AM
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Hello Benny: Also, check out the brushes. If their is a lot of arcing, or sparking, they may need to be cleaned, or replaced. Check the router for a tight bearing. If it rotates harder than normal, You may need to replace it. You should have very little problem of saving it,

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post #4 of 30 (permalink) Old 08-13-2010, 01:13 PM
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Benny, I had the same problem with the same router, changed both berings and the problem is now gone. Berings are easy to replace but you do need a small puller to remove one of them. It is worth repairing, this is a nice router. V/R Robbie
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post #5 of 30 (permalink) Old 08-13-2010, 07:05 PM Thread Starter
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Brian san, dutchman 46 san,
Thank you very much.
I will try them today.
But I am afraid that I can not see them except blowing.
I will post result.
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post #6 of 30 (permalink) Old 08-15-2010, 02:39 AM Thread Starter
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robersonjr san,
Thank you very much.

blow dust
I assume that I can do it.
I think a few dust is in housing(?).

brushes
Does this mean like as attached file ?

bearing
I can not see where it is.
Even if I take off a screw like as light blued arrow in attched file, morter unit will not be taken off from housing with small power of hand(finger).
I am pleased if I could have a info of ways of taking off.


I think dust-problem is cleared, so I will rout something tomorrow afternoon.
From the evening of 13th. to early morning of 16th., making loud noise is hesitated.
Because in our custom, ancestry spend with us during that time.
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post #7 of 30 (permalink) Old 08-15-2010, 07:49 AM
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Yes Benny, there are 2 carbon brushes on the motor. One you can see in pic #2. The red wire is attached to the copper lead. There will be one the opposite side just like it, probably with a different colour wire attached to it. If your router has seen a lot of use, they could be worn down and cause excess heat as Howard (Dutchman 46) suggested. Not difficult to check, or change.

Brian


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or by imbeciles who really mean it.

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post #8 of 30 (permalink) Old 08-15-2010, 01:57 PM
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Benny, here is the web address to get the service manual for your router, it is on line and available. There is a break down and parts list. V/R Robbie

Delta Machinery|Porter-Cable
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post #9 of 30 (permalink) Old 08-15-2010, 09:03 PM
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Benny, Is the variable speed control still working? Jim
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post #10 of 30 (permalink) Old 08-17-2010, 05:34 PM Thread Starter
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Brian san,
Thank you very much.
I think it is easy for you to check, but it is not easy for me as amateur who know nothing about it .... by visual.

robersonjr san,
Thank you very much.
I did print it out.
I assume that it is not difficult for me to take motor unit form housing.
A few screws are on it...

jbooherjr san,
Thank you very much.
Yes, the speed control is working.

--------------------------

A result of a few mineuts working...
A part where become hot is "collet chuck side".
A part of a cap side does not become hot.
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