Model #315277251 CRAFTSMAN Sander

  • Field And Armature Assembly
    3 Results
  • Belt Sander
    3 Results
Find part by diagram >

Question and Answers

Q:

craftsman belt sander model no. 315.277251

A:

I know that using the website can be confusing at time. I would suggest that you reply on the orginial thread, with the orginial question. What you need to do is click on "Answers" at the top of the page, then click on "My Conversations." Then click on the orginial questions, toward the bottom of the page you will see "Join this Conversation" type your reply and submit it. This will be sent to the expert that answered your question. I hope this helps.

Read More
aashe -
August 01, 2011
A:

Thank you for the update on the sander.

Unfortunately there is not much left but the motor field winding or a shorted rotor if everything else is working freely. The most likely problem is the field windings. It has a winding that is not sending all the power through and making the armature/rotor spin.

The field windings are no longer available but the rotor is still available at about $90.00 so I would think replacing the sander is the only feasible option.

I am sorry that is has come to this conclusion.

Sam A.

Read More
Sam A -
Sears Technician
August 03, 2011
A:

thank you for all your help. it was at least interresting taking the sander apart and seeing the internal parts. thanks a lot.

Read More
Dale -
August 03, 2011
See more answers
Q:

sears belt sander model no. 315277251

A:

I see you are following up on a previous expert post to Sam. You should get the response within 24-48 hours if not sooner. Just an FYI, you can also just keep replying to the previous post by entering a response and clicking reply. That way it goes directly to the expert you are communicating with.

Read More
Barbara H. -
July 29, 2011
A:

Thank you for the update on the sander.

I apologize that we are having a problem with the responding on the answer side. We are experiencing a technical problem with the site. So please reply for the mean time the way you have and I will look for the response by my name like you did hear.

In looking at the parts picture I do not see any screws that hold the field windings into the sander base. It usually is a tight friction fit into the lower housing so it doesn�t move around, and if you use a small flat bladed screw driver to pry up on the armature shaft and bearing seats you should be able to get it out of the base.

It sounds like one of the armature bearings are froze up.

Look at the picture below and when you get the armature out pop the bearing seals off and see if you can get some lubrication into the bearing. But if the bearing is ruff then you will need to which ever bearing is seized. On the picture it would be # 10 or #12.

Please let me know what you have found, and we can continue our troubleshooting based on that.

Sam A.

Read More
Sam A -
Sears Technician
August 01, 2011
See more answers
Q:

Belt sander

A:

Appliances can exasperate us as we try to find resolutions to these issues. I understand how it can be frustrating with your Belt sander not working. I have taken the time to research on the Manage my Life website and have located a link quite similar to your issue that you are having with your appliance. While you are waiting for a detailed reply from an expert i have attached the link below.

Read More
Priscilla V -
July 25, 2011
A:

Thank you for your question.

If I understand you correctly you have taken the cogged drive belt off the drive and belt pulleys and you cannot turn the small pulley shaft.

This is a gear reduction mechanism so it will be hard to turn it by hand.

If you pull the trigger and it still just hums or buzzes the there is a problem inside the motor housing with either the bevel gears or the bearings.

I think your only option is to split the case by removing the two handle cover screws and then removing the 8 top cover screws for the housing.

This will expose the motor housing and gears with the bearings and you should be able to see where the problem is.

If you need more help please reply and I will be glad to help your further.

Thank you for using Manage My Lif

Read More
Sam A -
Sears Technician
July 26, 2011
A:

dear Sam A: I split the case, and exposed themotor housing. the gears look good to me. the bearings have a rubber ring around them, i sled the rubber ring off of the top of each bearing and could not make any of them turn. how do u seperate the two gears? maybe then i could tell better if the bearings are bad. or is there something else i should try. thank you.

Read More
Dale -
July 27, 2011
A:

Thank you for your update. With the top cover off you should be able to first remove the brushes from the motor housing so they do not get damaged. Then you should be able to lift the armature and the field winding with the gears out of the lower housing. Then slide the armature out from the field windings and check the bearings to see if they are frozen. Please let me know what you have found, and we can continue our troubleshooting based on that. Sam A.

Read More
Sam A -
Sears Technician
July 30, 2011
See more answers