Question about Delta 31 - 255X X5 18'' x 36'' Drum Sander

2 Answers

My delta 31-250 sander dc drive motor will not run. The machine has only been used for 26 hours total. the dc motor quit during the sanding of a 12" board after the third pass.

Posted by on

  • 2 more comments 
  • jim_brown451 Feb 16, 2010

    My problem was the overload reset. After working with it a little i got it to reset and the unit has worked well since.

  • cutterboards May 11, 2010

    I have a 31-255X type 2. Go to to order new parts for your machine. Delta has some errors in their parts lists for these drum sanders. I thought my motor was bad and ordered a new one since it was 3 years old. The old motor is good since the new one didn't work either. I traced it down to the rheostat, ref # 150 on your parts list. The toolsdirect website didn't list part 150 on all model parts lists. What I need is part no 911609 DC SPEED CONTROLLER. Yours may be bad too. It costs about $50.

  • cutterboards May 11, 2010

    Write back on this board to clarify the problem. Does the motor hum or is it warm? If you loosen the left and right belt tightening screws will the drive pulley on the front of the table turn?

  • cutterboards May 11, 2010

    The DC drive motor (1/50 HP) quit after 3 years of use. The main 115v AC motor is fine. I ordered a new DC drive motor and when I plugged it into the cable socket, I got no power. I looks like the circuit board is at fault. I checked it and there are no loose connections.This machine works fine and I have used mine every other day for 3 years. How did you resolve your problem?



2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

Normal 0 The last paragraph of the usurers manual points out the DC drive motor reset button for the DC circuit breaker. If you tighten the conveyor belt too tight with the left and right adjusting screws that DC breaker will trip. You must loosen the two adjusting screws ½ turn or more and push the white reset button just above the speed control knob.

Posted on Feb 15, 2010

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,723 Answers

Did the DC drive give you a fault code? It may have tripped on a current over load. Needs to be set to handle load.

Posted on Jun 30, 2009


1 Suggested Answer

  • 2 Answers

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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

How to fix motor delta belt disc sander

What is it doing or not doing, when u turn on the switch, either the switch or motor is probably bad or you have too much tension on the belt.

Aug 22, 2014 | Delta 31 695 6" Belt/9" Disc Sander

1 Answer

Delta 31-250 saander dc drive motor doesn't work

You have probably tripped the breaker for the drive motor. If you have the manual, it shows you the location of the reset button on pg. 20. The reset is a small white button above the drive switch. You can download the manual from this link:,d.aWc

Dec 10, 2012 | Delta 31 - 255X X5 18'' x 36'' Drum Sander

1 Answer

My delta sander stalls while sanding on the belt.

Mine was underpowered from the get go. I have since sold it. Keeping it well lubricated does help though.

Jan 23, 2010 | Delta Machinery 4x6 Belt/Disc Sander

2 Answers

Drive Belt broken

the part number for the poly v belt is 406131330004 and you should be able to buy it direct from Dewalt at their website or find a local dealer thru their locator and or service stations listed there.

Nov 15, 2009 | Delta 31 - 255X X5 18'' x 36'' Drum Sander

1 Answer

Older 31-125 model. Disc doesn't stick to machine well. Also would like to find a manual for it.

Found you a parts breakdown at but no online user manual. On the Dewalt site use the - between number for it to come up.

Sep 30, 2009 | Delta 31 - 120 12" Disc Sander

1 Answer

Sander failure when using honda generator

If you are using a 220 volt 4 hp floor sander, which is 95% of all floor sanders. you CANNOT use a generator less than a 25KV, which is about the size of a van. All Floor sanders draw over 80 amps at start up and during floor sanding all sanders run around 25 amps. If your motor is a Capactor style motor you can do detrimental damage to the motor. Many of my customers have done it in the past.

Dec 24, 2008 | National Tools & Hardware - Others

Not finding what you are looking for?
Delta 31 - 255X X5 18'' x 36'' Drum Sander Logo

965 people viewed this question

Ask a Question

Usually answered in minutes!

Top Delta Tools & Hardware - Others Experts

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

Andrew Taylor
Andrew Taylor

Level 3 Expert

20287 Answers

John Trevino

Level 3 Expert

1388 Answers

Are you a Delta Tool and Hardware - Other Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides