My 8 inch delta bench grinder need's a new capicator i think ? it is avariable speed 1725-3450. when i turn it on it starts real slow then quits.it won't stay running.could i wire it direct so it just runs at one speed and eliminate the variable speed. if so there's 4 wires coming out of the motor 2 black and 2 red. what do i do with the red wires that went to the capicator. delta shopmaster 8" grinder gr450
What is the mf(microfarad) rating and the voltage,then go to an industrial electical shopand buy one for the correct voltage and an (mf) equal or greater ,but not by more than 10%---mine cost $9.00-in Maine---good luck- MATT
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Try wrapping a thin cord around the shaft many times to allow the shaft to be spun in the normal running direction when pulled. Pull sharply on the cord and turn the motor on--if the starting capacitor is bad, the motor should continue to run until shut off. If there is no capacitor, then the motor uses a start winding and a centrifugal switch to start. The switch is supposed to open when the motor comes up to speed. If you used to hear a loud 'click' when the motor was shut off and slowing down, then you likely have the start winding and switch. If the contacts on the switch become burned and not make contact, then it will display the symptoms you mention. You will need to access one or the other end covers to reach the switch. Hope this helps!
Hi Chip , have you tried !!carefully!! turning the grinding wheels whilst the grinder is powered up and humming and does this start the machine , if it does your motor start capacitor ( a cylinder/tube with 2 wires or connectors on it ) will be deffective or the leads might have became detached from it , a replacement capacitor is quite cheap but you must replace it with the exact one ( a motor start/run capacitor of the correct Mfd or uF rating typically 30 uF/Mfd and at the correct voltage 110/220V ) if this dosent fix your problem most likely your motor start windings in the motor field coils are burnt out and the grinder is uneconomical to repair . hope this helps .
A bench grinder is a very simple tool. The units are usually listed as 6-inch or 8-inch wheel models, and the 8-inch units are typically a bit more powerful, and subsequently more expensive. A 6-inch model will usually be powered by a 1/2 HP motor, where the 8-inch will be larger, likely 3/4 HP. Two very useful features to look for are a mounted work light, which will directly illuminate your work, and an adjustable rest, which functions much like the tool rest on a lathe. Strongly consider models which have both features. Many also include a clear, see-through spark guard, which will help keep any sparks from flying toward your face. A word of caution, though: such a guard does not replace safety goggles.