Baldor Grinders - Answered Questions & Fixed Issues

OC3012F12SPCYL OIL CAP 12MFD/370VThats number the neccesary part for your grinder 12 mfd think about a fitting size of the capacitor and model if you will know for sure here is the information to get .http://www.baldor.com/brands/baldor-dodge/contact-us/contacthttps://www.baldorvip.com/servlet/productInfoPacket/1022W.pdf

Much would depend on whether it is a start capacitor or a start/run capacitor. If there is a switch on the end of the rotor operated by centrifugal weights it will be a start capacitor only but if there is no centrifugal switch the capacitor will need to do double-duty and the value could be critical. Contacting a dealer or the manufacturer would be favourite but a motor specialist might be able to make a recommendation. Guessing isn't really an option and the working voltage of the capacitor is equally important. Most generic capacitors are rated in dc volts and for them to be safe used on ac mains the working voltage must be considerably higher than the rms value of the ac mains. It is best to use only capacitors rated for ac mains. You will probably find the capacitor as a spare part from a dealer will be prohibitively expensive but once the value has been discovered and if possible the manufacturer, part number and so forth, great savings can be made by sourcing direct from the capacitor manufacturer. I recently paid less than £5 plus carriage plus VAT for a capacitor the machine manufacturer wanted more then £60 for. Good luck!

Grinding chrome is not recomended on a bench grinder

Hi and welcome to FixYa, I am Kelly
Inside your grinder either the stationary switch or the rotating assembly that actuates the stationary switch has failed.

Download this pdf file:
http://www.baldor.com/pdf/literature/CA506_0806_WEB.pdf Then go to page 9

The rotating assembly is this part number: (most common failure)
34RS2060SP

You must remove the end plate / cap to change this part.

The statonary switch rarely fails unless the rotating assembly damaged the contacts when the rotating assemble failed. When the rotating assembly fails you often find a spring and flyweight loose inside the grinder during disassembly. Should your stationary switch have failed try and get a number off of it so you can get the right switch. Otherwise you have to use NEMA code / Body type numbers.

Thanks for choosing FixYa,
Kelly

this is a "Split-Phase"motor it uses only a run capacitor and a typical capacitance rated MFD rating will be between 80 and 290 MFD, go to www. grainger..com and they will have your part,and even if its an older unit and the model/serial/number is available take it with you & they will have a replacement capacitor available in the correct size/dimension/mfd/etc

You could connect the wires of the switch together inside and bypass the switch. Then I would connect in the power cable a switch rated for 1 hp. You can use surface mount electrical box, with two cable connectors (one for the cable going into the grinder, the other for the cable going to the male cord end of the cable. Install a 120 volt switch inside the box (similar to the light switch in the wall). Make sure that the switch is rated for 1 hp. I would install the switch under the bench, under the grinder.

Joe

is for safetyreasons. when it is running when you pull the plug out, without a relais it starts running when you putt plug in. so the on switch triggers the relais and the off switch brakes the takeovercontact. very oft the relais are of bad quality . for private use it is not ness.

the neutral or white is not used. if the fourth wire is a ground then it goes to the motor frame. if it is a dual voltage motor then here is the wiring: for 240 volt 3 phase connect 4-5-6 together and tape, 3-9 goes on L1, 2-8 together goes on L2, 1-7 together goes on L3. To reverse direction swap any two line wires. For 480 volts 3 phase: L1 goes on T1, L2 goes on T2, L3 goes on T3. Connect together T6-T9 and tape, connect T5-T8 and tape, connect T4-T7 and tape. again to reverse direction swap two line wires.

near as I can figure they should be a 10-32 x 3/8 serated bolt. the website doesn't define the parts that well

Some grinders have tapered, threaded shafts that allow the use of soft buffing or metal polishing wheels, could that also apply to yours?

depends on condition and what comes with it. generally starts at $500 in good shape and up to 850 if excellent with many extras (chucks, rests, knurling attach, faceplates, etc) Also, check for accuracy...

Yes all the tool places say discontinued. Yes, bypass it, but make sure you don't overwork the grinder. https://www.google.com/search?q=2610904741 ..

Out of warranty ... time for a replacement machine.I would choose a different make. Assuming the batery is not the fault.

DIRTY CONTACTS POSSIBLY

Size for size and component value identical on replacement. Fit the correct part.

Considering how potentially dangerous grinding machines and wheels are and how much safety legislation exists about their maintenance, adjustment and use, a great deal of printed matter exists about these things and the wide range and selection of wheel material. You should have no bother finding useful information, fortunately bench grinders are extremely similar to each other... https://images.homedepot-static.com/catalog/pdfimages/b6/b64b39fb-6d42-4fec-a274-76bbd950e6d8.pdf

Search using https://www.google.com or eBay.com Example of search result: http://www.1sourcecomponents.com/partinfo/Fa4-12/2bd%20trigger%20switch.htm

One turn.

Find a Single Pole Single Throw (spst) toggle switch at the local hardware store rated for the load of the grinder. Wire the switch in place and viola you are done! Machines are stupid;they can tell the difference between an oem part and a replacement.

You can get a replacement toggle switch at any hardware store look in the electrical department.