Question about Drills

Open Question

Core drill model number is cb748. Will not spin, how do I troubkeshoot the problem

Posted by Anonymous on

2 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

comax
  • 154 Answers

SOURCE: how to properly clean armature on cb748 core

If you are getting arcing on the brushes then most likely the armauture has failed and cleaning will not cure the problem. If the unit has been run with the brushes sparking for a while the field coil may also be faulty. Best thing at this point is to dismantle the unit and take the armature and field in for testing or take it to a Dewalt service center for repair.

Posted on Aug 05, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Which part do i need


Depending on the model it is either a transmission or a clutch assembly. If you can post the model number I will get you the correct information.

Nov 30, 2016 | Drills

1 Answer

No 110 voltage


Check the circuit breakers for a tripped one. If all OK, then the brushes may need to be replaced. Here's a tip on how to flash the field in the generator: This tip comes from the Briggs & Stratton Customer Education Department. As an alternative to flashing a rotor winding with a battery applied to the brushes, an electric drill may be used. Follow these steps to flash the generator:
  • Plug the electric drill into the generator receptacle. (Cordless drills do not work)
  • If the drill is reversible, move the direction switch to the forward position.
  • Start the generator
  • While depressing the trigger on the drill, spin the drill chuck in reverse direction. This will excite the field and the generator will now produce electricity. If spinning the chuck one direction does not work, try spinning the chuck in the other direction as you may have the reverse switch positioned backwards.
Use caution not to get your hand or other materials caught in the chuck. As soon as the field is excited, the generator will produce power and the drill will turn on.
The reason this works is because the electric motor in the drill will act as a small generator when spun backwards. The magnets in the drill's motor induce a voltage into the motor windings, which is fed back through the trigger, cord and into the generators receptacle. From there it goes into the power winding of the stator. The voltage going through the power winding creates a magnetic field, which is intensified due to the iron core of the stator laminations. The rotor intersects this magnetic field as it is spun past the power winding, thus inducing a voltage in the rotor winding. Once current flow is present in the rotor winding the rotor has been flashed.
If flashing the field does not make the generator work, you may have additional problems, besides a lack of magnetism in the rotor. Further testing will be needed. Hopefully, this will give a simple way to field flash your generator if needed

Aug 11, 2016 | Electrical Supplies

1 Answer

Drill can no longer turn a screw. The drill can spin, but once it needs to apply force on a screw (or in my hand) it just makes a "zzzzzzzz" sound. What part do I need to replace?


On the chuck you will find some numbers.Those numbers means the revs and power that is aply for cetain jobs.If you want to drill use the max number by turn the dial on the chuck to the select number.


If you need more help come back.Post / thumbs / testimonial are welcome!
.

Dec 06, 2010 | Dewalt 18v Battery Hammer Drill Dcd950...

1 Answer

My head quit spinning on my drill what part went bad and can I order the part to fix it myself. Thanks


Go to: Searspartsdirect.com and enter the complete model number minus the decimal point. That will take you to a drawing of all of the replaceable parts, part numbers and prices. Assuming that the motor runs ok, then you likely have a gearbox problem. Make sure the function switch is turned completely to the mode that you want to use as this affects the gearbox. Hope this helps!

Jun 13, 2010 | Craftsman C3 19.2 volt Combo Kit,...

1 Answer

I have a DCD940KX 18v Dewalt drill driver with the one click drill chuck. It does not keep drill bits or screwdriver bits from spinning. They spin with the slightest bit of pressure on them. My questions...


this is not a common problem with dewalt. I have been using them in my construction business for years and only heard of this once or twice. I would go to their web site and get the number for their customer service. They stand behind their products and im sure they will help in every way they can to repair the drill

Nov 26, 2009 | Dewalt DC920KA Heavy Duty Xrp 18V Cordless...

1 Answer

How to properly clean armature on cb748 core drill, arcing issues have not gone away after brushes have been replaced.


If you are getting arcing on the brushes then most likely the armauture has failed and cleaning will not cure the problem. If the unit has been run with the brushes sparking for a while the field coil may also be faulty. Best thing at this point is to dismantle the unit and take the armature and field in for testing or take it to a Dewalt service center for repair.

Aug 04, 2009 | Dewalt Drills

1 Answer

I HAVE THE SAME PROBLEM,AND MY CLUTCH DOES SPIN IN ALL 3


K I dont know what the same problem is but lose the caps and give me the model number and brand and the problem and I will see what I can do for you.

Aug 01, 2009 | Dewalt DC920KA Heavy Duty Xrp 18V Cordless...

1 Answer

Makita core drill model8406


Hi the 8406 was common for the intermediat gear to go have you yet stripped the gear box?
Quick test wear gloves to do this!
Turn on the drill if the chuck does not turn spin the chuck with a gloved hand TAKE CARE!! if the chuck catches grip one of the gears are gone.
Hope this helps let me know. Sean

Dec 22, 2007 | Makita Tools 18V 1/2" Lxt Lithium - Ion...

Not finding what you are looking for?
Drills Logo

Related Topics:

50 people viewed this question

Ask a Question

Usually answered in minutes!

Top Drills Experts

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

yadayada
yadayada

Level 3 Expert

75822 Answers

Brad Brown

Level 3 Expert

15557 Answers

Are you a Drill Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...