Question about Dewalt D26453KR Reconditioned 5" VS Random Orbit Sander Kit

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Dewalt 5" random orbital sander (DW421) comes to a complete stop when it is under load. Is this repairable?

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Seems time for a new sander.

Posted on Jul 30, 2009

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1 Answer

Sanding pad ripped off plate on DW421


You can get a new one fairly cheap. Toolpartsdirect.com there is different types to that model. Once you get it, they are not hard to change, 3 or 4 screws.

Sep 14, 2013 | Dewalt DW421 5'' orbital sander

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What is happening to my Dewalt DW421 spinning fast, but no random orbiting motion.


Probably need to replace bearing 6202. I took mine apart, dissambled the retainer and used PB Blaster on the bearing. It seems to be a short term fix. At least it's not operating at hyper speed anymore. Long term, I probably need to replace the bearing and maybe a new lower retainer if I can't press the bearing out.

May 25, 2013 | Dewalt DW421 5'' orbital sander

1 Answer

What type of sandpaper do I use on a dewalt dw421?


this sander appears to use the hook and loop system, you can download an instruction manual by going to dewaltservicenet.com and typing in your model number.

Jan 04, 2012 | Dewalt DW421 5'' orbital sander

1 Answer

Hi can I use my Dewalt polisher and change to sandpapper if so what parts will i need for instance glue new flexable pad sticky 220 papper can you please elaberate a little what in going to need thanx ...


I'm not sure I understand your question, but I'll give it a go.

The DW421 is a sander already. If you want to change it to a polisher, you can buy polishing pads to go on it.
If you have a Dewalt polisher and want to convert to a sander, you can buy sanding disks to fit your polisher. They are installed on the spindle and I believe you can get a backing pad for it also.

Hope that helps

Mar 19, 2011 | Dewalt DW421 5'' orbital sander

1 Answer

I dropped the sander and now it no longer works.


What do you expect?
Probably mostly plastic & cheap
See if Home Depot will take back

Dec 29, 2010 | Dewalt DW421 5'' orbital sander

1 Answer

I have a Dewalt sander I am using for wet sanding on a boat hull. I have already burned one sander out do to moisture I figure is there a way to protect the new sander from this happening again I am...


Impossible not to get water in the bearings and motor. It is vibrating too fast. You need air sander. Or sand dry, then wet sand the primer by hand.

Dec 17, 2010 | Dewalt DW421 5'' orbital sander

1 Answer

How do I secure a piece of sandpaper on the dewalt orbit palm sander?


I think your model holds the paper with glue that is on the sand paper.Just take apart the back cover of the sand paper to expose the glue.

Nov 08, 2010 | Dewalt DW421 5'' orbital sander

1 Answer

I have replaced the brushes, switch and tested the cord yet the sander will not operate, Any suggestions.


check the comutator (where the brushes contact on the shaft) and make sure it is clean and not shorted

Jul 20, 2009 | Dewalt DW421 5'' orbital sander

1 Answer

Makita 5" Random Orbit Sander


The armature windings have an overlay problem in the wiring causing this and there is no soluation except to replace the armature which is not cost efective unless you are still under Warrantee and get a free replacement, it will burn up at some point. If you bought it within the last month take it back and get a new one, over one month, pack it back up in the original box and send it to address in the owners manual for repair or replacement service addresses.

Feb 19, 2009 | Makita 5" Random Orbit Sander

1 Answer

Break


dewalt has a web sit where they answer your questions

Dec 06, 2008 | Dewalt DW421 5'' orbital sander

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