PC 7519 Soft Start Removal - Router Forums
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post #1 of 19 (permalink) Old 07-08-2018, 03:29 PM Thread Starter
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Default PC 7519 Soft Start Removal

I picked up a 7519, Type 3 router a week or so ago and want to put in a speed control. I've read a bunch of blogs posts regardign MLCS, Harbor Freight and other and given the price of the HF unit, plus my 25% off coupon, and the fact that they're around the corner and I could pick it up now, I went with it.

I've been reading several posts about removing the soft start unit, or bypassing it more correctly, so I took off the cover and had a go at it. From what I saw the soft start is located between the power cord and the on/off switch. The only photo I saw was of a part that didn't look like what I found in my router so I'm posting the photos to make sure I'm doing this correctly and don't fry myself when I turn this one on.

The first photo shows the wiring coming into the router, the white wire appears to go from the cord down into the router under the brush on that side of the router. There is also a thin blue wire tied into the white wire that goes to what I believe is the soft start switch. The black wire from the cord went into the switch that is shown in the third photo.

Coming up from where the white wire goes under the brush are a black wire and a red wire. The red wire goes to the brush and the black wire was connected to the soft start terminal just to the left of the blue wire in photo 2. Another black wire came from the terminal next to that one and went to the switch. I unscrewed the terminals, removed the black wires and spliced them together and put them back into the space next to the SS switch.

When I put everything back together and plugged the router into the speed control everything seemed to work properly and turning the dial on the speed controlled slowed down the router.

What concerns me is that ereplacementparts and other parts suppliers shows a completely different looking soft start device, https://www.ereplacementparts.com/po...672_12324.html

So my question is have I identified the soft start module and correctly bypassed it, or should I call the paramedics before starting up the router? :-)

Thank you
Joe
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post #2 of 19 (permalink) Old 07-08-2018, 03:38 PM
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I believe that's a 7518 and not a 19...
The capacitors are usually the cause of loss speed control function... change them out for about a buck each..
these might help...

.
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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”

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post #3 of 19 (permalink) Old 07-08-2018, 06:46 PM Thread Starter
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Hi Stick,

It's a 7519, the single speed model, so there is no speed control. I want to bypass the soft start mechanism, which I'm told you have to do to use an after market speed control.

Joe
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post #4 of 19 (permalink) Old 07-08-2018, 07:20 PM
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mjadams61 likes this.

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 19 (permalink) Old 07-08-2018, 08:01 PM
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Quote:
Originally Posted by JoeR3451 View Post
Hi Stick,

It's a 7519, the single speed model, so there is no speed control. I want to bypass the soft start mechanism, which I'm told you have to do to use an after market speed control.

Joe
Most of those basic aftermarket speed controllers do just that slow the router down by decreasing the input voltage, they also decrease the power so your router will slow down a lot under load and heat up, they have no feedback to regulate the speed. You should monitor your router closely and not let it slow down too much and watch it for overheating.

Tight fisted old so-and-so!
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post #6 of 19 (permalink) Old 07-08-2018, 08:44 PM Thread Starter
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I've looked at that video before. It's one of the most useless videos I've ever seen. There is no information as to where the soft start module is located, and everything is moving around when he says things like "just connect the wires". That part he has already disconnected is nowhere to be found on my 7519. I'll keep looking.

Joe
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post #7 of 19 (permalink) Old 07-09-2018, 01:24 PM Thread Starter
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So I called Porter Cable/DeWalt and was directed to their servicenet site where I located the schematic for the 7519 Type 2. Part number 5140102-22 is in fact the soft start module and it looks exactly like the small black box in my router. I have no idea what that part is in the above video. Anyway, it appears that I correctly bypassed the soft start and am now controlling the speed with the HF speed control. I adjusted the rheostat as shown in the video https://www4.bing.com/videos/search?...5682&FORM=VIRE I can now go through the full speed variation.

I'm off to make sawdust.

Thanks for all the info,
Joe
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post #8 of 19 (permalink) Old 07-09-2018, 02:25 PM
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care to share the diagram???

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 #9 of 19 (permalink) Old 07-09-2018, 03:33 PM Thread Starter
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hi Stick,

I'm trying to figure out how to do a diagram and put it in here. Until then I was just a matter of removing the 2 black wires (that had small brass end pieces) from the soft start module (the black box in the second photo). One went into the terminal just to the right of the thin blue wire you see in the photo and the other went into the other terminal. The first wire came from the white wire on the power cord. As you can see in the third photo, the white power cord wire goes down into the tool and comes back up as a red wire (to the brushes) and the black wire that goes to the SS. The second wire comes out of the SS and goes to the other terminal on the power switch.

I'll keep working on the diagram.

Joe
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post #10 of 19 (permalink) Old 07-09-2018, 03:38 PM Thread Starter
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Quote:
Originally Posted by Stick486 View Post
care to share the diagram???
I'm not sure if this will work but I created a .pdf file and tried to upload it.
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