DeWalt 611 durability/maintenance

TomDChi
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DeWalt 611 durability/maintenance

Post by TomDChi » Tue May 05, 2015 8:38 pm

Improbable Construct just tweeted:

https://twitter.com/ImprblConstruct/sta ... 3992016896
Well it would appear that ~180 hrs is all you can get out of the DWP611 brushes. Old on r left new on the right.
I hope that's an outlier...

Poking around a bit, I found the parts list/ordering for the DW611:

http://servicenet.dewalt.com/Products/Detail/DWP611#

It looks like the brush is #59 (Part number A27343), that there's just one of them, and it goes for US$4.97

Is it correct that there is only one needed? Also, how hard is it to check visually, extract and replace?

Has anyone else worn one out? Would this be a good thing to have a replacement on hand? Are there any other parts to have as spares which are likely to wear out in weeks/months/a year or so?

Is there any preventative maintenance that can/should be done, such as oiling anything and/or checking certain components on a schedule?

WillAdams
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Re: DeWalt 611 durability/maintenance

Post by WillAdams » Tue May 05, 2015 9:04 pm

Brushes wear, that’s one of the advantages of a brushless motor such as is used in the spindle for the Nomad883.

This article notes varying time periods suggested in various owner’s manuals: http://www.woodworking.com/ww/Article/W ... -7169.aspx
one says every 100 hours of use. Another recommends taking a look after 50 hours or 10,000 On/Off cycles. The third says every two to six months.
Shapeoko 3XL #0006 w/Makita RT0701 Router w/0.125″ and ¼″ Elaire precision collets
Nomad 883 Pro #596 (bamboo)

Improbable Construct
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Re: DeWalt 611 durability/maintenance

Post by Improbable Construct » Tue May 05, 2015 10:21 pm

There are two brushes and they should be sold in pairs. The design of the DWP611 only lets the brushes wear down to 1/4" or so before the springs quit pushing on them. This means that the brushes just stop making contact. Some motors let the brushes wear until they slip out of the holder and can damage the armature. This is not the case with the 611. As a side note it took me almost 2 years to put 180 hours on it, so keep that in mind.
Shapeoko #Classified some of the bolts may be original parts.
Shapeoko 1 # ???? Stainless plates, still in the box.
Shapeoko 2 # 3926 not stock
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TomDChi
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Re: DeWalt 611 durability/maintenance

Post by TomDChi » Wed May 06, 2015 3:16 am

Thanks. The parts diagram gave me the impression that there was only one brush unit, though it makes sense that there are a pair. I infer that the listed DeWalt part is a pair (I then the name of the part is plural "brushes".)

EDIT: nope - I just rechecked the parts listing and it says "BRUSH" (singular), and "Number in Model:" listed as 2. That gives me the impression that when you need to replace the pair, you'll need to order two of that part at about US$5 each for a total of $10.

To give me some reference, roughly how many hours did your 611 run for the clock, goofs and all?

Improbable Construct
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Re: DeWalt 611 durability/maintenance

Post by Improbable Construct » Wed May 06, 2015 2:44 pm

I picked up a 4 pack of the brushes for $16.99 with free shipping. http://smile.amazon.com/gp/product/B00X ... UTF8&psc=1

It says 4-5 days to ship but I got a shipping notification the next day and they should be here today.

The clock took about 4.5 hours of machine time.
Shapeoko #Classified some of the bolts may be original parts.
Shapeoko 1 # ???? Stainless plates, still in the box.
Shapeoko 2 # 3926 not stock
Shapeoko 3 # 0003
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TomDChi
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Re: DeWalt 611 durability/maintenance

Post by TomDChi » Sat May 09, 2015 2:30 pm

Thanks!

samc99us
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Re: DeWalt 611 durability/maintenance

Post by samc99us » Wed Aug 05, 2015 5:21 pm

Any photos of the replacement process? Parts diagrams seem lacking on the internals, may just be my computer...

I figure I've got close to 100 hours of cut time on my DWP611, if not more, and it might just be a good time to replace the brushed while I'm upgrading the rest of the machine.
Modified Shapeoko 2: 1500mm fully supported y-axis, 1000 mm 4060 x-axis, ACME Belt Drive Z-axis, Dewalt DNP611, full aluminum t-slot table, 4x NEMA23 180 oz/in stepper motors driven by a G540

madhatter
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Re: DeWalt 611 durability/maintenance

Post by madhatter » Wed Jun 01, 2016 8:52 pm

Dewalt DWP611
249 hours 46 minutes runtime.
90% of run time spent between 18,000-24,000 RPM.
Ugliness Here.
SO3 #0054
DWP611 - SuperPID
Prusa i3 MkII
SolidWorks 2015

cvoinescu
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Re: DeWalt 611 durability/maintenance

Post by cvoinescu » Wed Jun 01, 2016 10:23 pm

250 hours sounds about right, doesn't it, though? Or do they claim that the brushes last more?
Proud owner of ShapeOko #709, eShapeOko #0, and of store.amberspyglass.co.uk

madhatter
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Re: DeWalt 611 durability/maintenance

Post by madhatter » Wed Jun 01, 2016 10:48 pm

Oh, I have no idea what the recommended replacement interval is. I was just showing what they look like with a known run time and RPM range. I hooked my router to a Super PID from day one so I had an exact runtime log.

It started making a "funny" noise a couple of days ago (okay, it was really more like two weeks ago, but I'm lazy) , and hesitated when I tried to turn it on today so I figured it was time.

Also, it just so happened that my 6 year old laptop hard drive decided to let me know it plans on dying in the next few days. Let the good times roll...
SO3 #0054
DWP611 - SuperPID
Prusa i3 MkII
SolidWorks 2015

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