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[Hornnumb2]

I have several 18v drills that just don't speed they used to have, is it worth replacing the motors in these? Thanks Michael

[kjones]

GRC is usually just under $100 (usually between 95 and 99 bucks).  It's a great deal if you have good batteries, as your drills will essentially be brand new.  If you are needing new batteries as well, than get a new kit.

[framer]

I have several 18v drills that just don't speed they used to have, is it worth replacing the motors in these? Thanks Michael

sounds like your batteries are just getting weak.

[kjones]

If they are slowing down, in my experience, it is more often than not a sign of tired components in the drill, not bad batteries.  The biggest sign that the batteries are getting old is significantly reduced run time.  Both are completely possible though, so the best thing to do is to take the tools and batteries in to your local service center and get there opinion on the matter.

[framer]

if you have the old style nicad batteries, then i'm 99% sure you have a battery issue.
electric motors dont get tires and run slower.  they either work or they dont.  how fast they work depends on the power being supplied.

[Hornnumb2]

Its not the batteries, they work fine in my right angle drill and impact drill....It seems like the motors are just burnt out of the others that I have. I guess I will just get a couple of barebones drill to replace them. Thanks

[kjones]

Yah, the motors do get tired out over time.  They can lose their power, run batteries down faster, etc.  getting them serviced can be a great option though if you still have good batteries.  I recently had a couple of my DC988's rebuilt, and they work great.  I can put them up against anything the compeition has out right now and still beat or hang with them. (I have done this in tool demos frequently over the past year).  If getting them rebuilt is not for you, than you can always check out getting some bare tools off line, or at shops like ACME, Western Tool, or whatever construction suppliers you may have in your area.

[Bingobelle]

Maybee it is only the brushes that cost a few dollars.

[Hornnumb2]

If I buy one of the nano version ones can I use my xrp batteries in it still?  How much was it to rebuild them?  Thanks

[kjones]

If I buy one of the nano version ones can I use my xrp batteries in it still?  How much was it to rebuild them?  Thanks

All DeWalt 18volt batteries are compatible in all DW 18volt tools, so yes you can use Lithium ion batteries in your older tools, and vice-versa.  However, you cannot charge a li-on battery in a "black" dewalt charger, so you will likely need to upgrade your charger as well to one of the yellow colored, multi-chemistry chargers ($70) before you can charge lithium batteries.

While you certainly can just replace the brushes for a small amount of money, I always recomend the full GRC service, as they will replace all the worn out, strained, or tired out components of your tool (in my case this meant new plastic clamshells, new chucks, transmissions, motors, and switches-- really pieced together brand new drills), and all for around $95 per drill.  Check with your local service center for actual prices, but they should be in that ball park. 

I recomend getting some prices from your DeWalt service center, then you can make an educated decision as to what option works best for your specific needs.

[Bingobelle]

None of us can really know what´s wrong with the drill. If the drill was mine I would take it apart, it is very easy. Inspect the motors and brushes and buy what ever part that is worn out. In most case you can use your nose on the motor to sense if the arnature have been overheating. If so change the motor. If brushes is worn out, buy some new brushes for a few dollars. Personaly I  can not se any point with buying new clamshell, chuck and gearbox if there is nothing wrong with them. A new clamshell with have some new scratches first week anyway. To me all that parts sounds like a new drill and I can really not see the point anymore.

Why change something that works and is not broken?

This is just how I see on it.