+- Woodnet Forums (https://www.forums.woodnet.net)
+-- Thread: Band Saw Motor Problem (/showthread.php?tid=7219434)
Band Saw Motor Problem - Bibliophile 13 - 02-13-2016
My little Craftsman bandsaw is having problems.
Sometimes the motor runs okay, but sometimes I flip the switch and get a humming sound but no movement. If I (carefully!) tug on the blade a bit, sometimes it will start running. The blade also bogs down sometimes in the middle of what should be easy cuts, like ripping 2X pine, even though the blade is plenty sharp.
So I suppose something in the motor is wearing out. What am I looking at here? What will it take to fix it?
Re: Band Saw Motor Problem - BloomingtonMike - 02-13-2016
Sounds like start and run caps need replaced. Id make sure the insides of the motor were clean as well.
Re: Band Saw Motor Problem - Dave Diaman - 02-13-2016
BloomingtonMike said:
Sounds like start and run caps need replaced. Id make sure the insides of the motor were clean as well.
Yep, what Mike said. Sounds like a start up cap to me to. I had the same thing happen on one of my bandsaws once it was a 2 hp motor but the symptoms sound the same.
Re: Band Saw Motor Problem - Axl - 02-13-2016
While you're checking the caps, make sure there isn't sawdust packed in the switch.
Re: Band Saw Motor Problem - Fisherman - 02-13-2016
Had a Craftsman Radial Arm Saw with similar problem. There was a centrifugal switch on the motor, acted like a brake. Used to get full of dust and fail to make contact. Or, the above mentioned Start/ Run cap issues.
Re: Band Saw Motor Problem - lkomroff - 02-13-2016
Since what you are describing is an intermittent issue, it sounds to me like a dirty or sticking centrifugal switch. This switch will switch the start capacitor in and out of the circuit. You can try to blow the switch out with air. It might help if it is not a TEFC motor. If it is a TEFC, this will require you to unplug the saw, remove the rear motor end bell, clean the contacts and lube the switch if sticky.
If you feel comfortable doing this, there are videos on youtube that will help familiarize you with this repair.
Re: Band Saw Motor Problem - Dennis Puskar - 02-13-2016
Had a similar problem with my craftsman jointer took it to the repair shop, motor needed cleaned.
Re: Band Saw Motor Problem - Timberwolf - 02-14-2016
Quote:
make sure there isn't sawdust packed in the switch.
This...plus the caps....
Re: Band Saw Motor Problem - doobes - 02-14-2016
lkomroff said:
Since what you are describing is an intermittent issue, it sounds to me like a dirty or sticking centrifugal switch. This switch will switch the start capacitor in and out of the circuit. You can try to blow the switch out with air. It might help if it is not a TEFC motor. If it is a TEFC, this will require you to unplug the saw, remove the rear motor end bell, clean the contacts and lube the switch if sticky.
If you feel comfortable doing this, there are videos on youtube that will help familiarize you with this repair.
This.
One thing to note. Do not use ANY sort of spray lubricant/cleaner/whatever when cleaning out these contacts. Dry graphite is your friend.
Spray lubricants usually contain some sort of hydrocarbon. Image what will happen when the centrifugal switch opens/closes with the resulting arc.
DAMHIKT......
Re: Band Saw Motor Problem - Bibliophile 13 - 02-14-2016
Thanks, fellows! I'm sure it's dirty and dusty (the outside of the motor certainly gets dusty), and I think I can manage to take it apart and clean it. And now that you've given me enough terms to look up online, I can probably figure it out.
Thanks again!