Question about Saws
I was using my saw and a really big spark and now won't work. I check my fuse box but it was fine.
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Posted on Jan 02, 2017
SOURCE: Switch diagram
as u notice the terminal on the switch has 2 connection like a switch diagram to it.it has normally open & normally close contact. the normally close contact are for red & white wire & the other
contact are for 2 black wire which is normally open contact.hope it helps.
Posted on Sep 19, 2008
Yes spark in motor compartment is normal. You only need to worry if you see a lot of sparks flying out of the motor compartment! Most power tools will spark inside the motor compartment (particularly if carbon brushes are used).
Bevel and miter could be off... Consult your manual for how to adjust these correctly, but usually the bevel has a 0-degree setting screw or adjustment, and the miter adjustment on the saw is usually done by altering the fence position... Again check your manual for specifics on your saw.
Posted on Mar 19, 2009
Could be worn brushes, dirty commutator or a combination of both. Unplug the tool and remove one brush at a time noting the condition and length. Use a flashlight look into brush tube and also not condition of commutator. I would blow is out with compressed air and you can try turning the brushes 180 deg and retry. That is usually the problem
Posted on Jun 27, 2009
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.
Posted on Oct 13, 2009
SOURCE: dewalt 7749 radial arm saw
According to the service manual this saw has a 120VAC single phase 2.5 Hp motor with a 5/8" x 1.5"long arbor. It has a maximum vertical cutting depth of 2 and 15/16". It has a maximum cutting depth at 45 degrees of 2.125" (2 and 1/8") without the lower guards. The maximum cutting depth at 45 degrees with the lower guards in place is 1.625" (1 and 5/8"
The service manuals (approximately 24 megabytes each) are available on line at Dewalt.com After creating an account. Then you should go here:
for the manuals.
Posted on Nov 24, 2009
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