I have a dewalt DW938. I replaced the motor, gear and brushes. I reassembled but it won't run. Assembly looks spot on..cept cant tell if the magnet needs to be positioned a certain way. Voltage to brushes is fine. Saw moves fine (by hand) when not inserted in housing. What's next to test?

SOURCE: I need to change the bearings on the amature of a dewalt tile saw

I looked at a breakdown and there is no clip. Sometimes the bearing is tough to pull out of the gearcase. Do you have a dead blow hammer? Sometimes I have to apply pressure (pulling) to the armature and tap the gearcase make sure that I hit a solid thick piece of it and generally it will jump out of there. Also in the past with the fan bearing on the armature it is so close to fan that you have to crush it in a vise and use a bearing splitter to remove the inner race, or if you buy the parts from Dewalt you might take it with you and ask them to remove and press the new ones on. Let me know if this doesn't work and I will research further.

SOURCE: I have a 20'' dewalt scroll saw that will not start

If you are getting voltage then it is most likely the control board. You would need to take it into a repair service center and they would have to pull the whole thing down to repair.

SOURCE: Reciprocating saw stops reciprocating

your missing a tooth on a large round gear in the gearbox.

when the gear on the engine rotates into the position where the little engine gear spins because there is no tooth to come into contact with the engine runs but the gearbox doesnt spin, hence no reciprocation, but engine runs.

if you bump the blade it will start going again, but when you cut it will stop offasionally in mid cut. you can repair this but stop using it the engine gear will be destroyed otherwise

I have a dewalt dw303 that you can use for parts, I need a new trigger or something the motor is dead and I found a new saw. go to craigslist.org, rochester ny tools section and look for dewalt dw303 that is my listing. for ten bucks ill sell you all the gears you need. i think it is close to the same model, i am sure it is the same gearbox.

try opening your gearbox, im positive that is what is wrong.

SOURCE: dewalt saw does not work

You more than likely have a break in the field. In order to test this you will have to take the field out of the motor. There will be 4 terminals on one end of the field. Test between 2 terminals of one side of the field. You should have continuity. Then test the other side. (By side I mean the windings will be seperated one on each side.) The most common problem with these saws is that the field wire at the terminal comes loose from overheating. You may be able to scratch the wire up a little (because it has epoxy on it) and then solder it back to the terminal. (Originally the wire is pressed into a slot in the terminal, but this will be broken, so you will have to solder it for it to make contact and stay) It will save you some money from having to buy a new field. Eventually though you will have to replace the field and make sure that there isn't a running short between the field and armature that caused the overheating in the first place.

SOURCE: I have a Dewalt dw 705 miter saw.when you pull the

the armature needs to be cleaned or it is possibly bad (open bars) They make a special cleaning stick called a commutator stone that you might be able to purchase at a local repair shop. If you are not comfortable trying this I would recommend taking the saw with you, To clean properly you have to remove a cover and have the saw running, I would also check for proper movement in the brush tube allowing the brush to freely contact the armature. Let me know if you need more assistance and I will try and help.