Dewalt hammer drill question

[dan6531]

I have the dewalt DC988 type 1 hammer drill. I've used it heavily for some years now and one day it started hesitating and then finnally died. I've replaced the brushes and it still doesn't work. Could it be the switch or the motor? Please help!

[cmoorejack]

Hey Dan6531,
If you have an ohm meter you can test the different components..without.. it's kind of a guessing game..most likely it is your switch now....part #152274-22 avail at ereplacementparts.com..
Hope this helps..
Craig

[Odie]

One simple way to bypass your on/off switch to test your cordless drill’s motor is to hot-wire the motor. This test should help you determine whether your motor is the cause of your drill's problems, or if your switch might be the one to blame. All you will need besides basic tools to take your drill apart are two wires that will be used to connect the battery to the motor. Make sure you have a good and fully-charged battery. Follow these steps to conduct this test:

1.Once you have taken your drill apart and removed the battery, take the switch from the handle and disconnect the two wires from the switch.



2. Take a wire and connect it from one of the battery contacts to one of the motor wires.



3. Hold the motor firmly in one hand, then connect another wire from the second battery contact to the other motor wire.

Note: Do not worry about which wire you connect to which battery contact because it will not matter on a DC motor; it only determines which direction the motor will turn.



4. The motor should turn on to full power when you make the second connection. If it does not, your motor is not working properly. If it does work, then your switch is probably what needs to be replaced.

Keep in mind that to hot-wire your motor it has to be disconnected from the switch.

Let me know how it goes.

Odie

[dan6531]

Thanks guys! I wish I would have found this site earlier!