04-01-2020, 11:54 PM
Single phase induction motors usually employ two windings, one is connected across the incoming supply, the other is similarly connected via a capacitor (likely the round object on the side of the motor in the photo). The capacitor may be permanently connected or it may be switched out by a centrifugal switch when the motor has reached some speed. The latter type develops more torque and is suitable for starting machinery. The first type is better suited to light loads, e.g. fans. Yours is probably (but not necessarily), a switched motor.
In order to reverse the motor, one of the windings, usually the capacitor fed one (the "Start" winding), has to be reverse connected, so that the current flows through it in the opposite sense. The switch you have would be suitable to do this but the connections to the start winding must be positively identified and isolated from the connection block so that it can be remotely switched in forward and reverse modes.
Unfortunately, in the absence of any manufacturers wiring diagrams, it will be necessary to work out the connections from first principles, which will need someone with fairly deep electrical engineering skills, armed with a DMM. The link below will give some ideas but obviously relates to some modern motors in terms of the actual connections.
http://www.sentridge.com/wp-content/uplo...ng_1ph.pdf
Unless you can find someone who can work it out for you (unfortunately you're too far away for me to help), I would leave well alone. As people have commented, there aren't many times you need to reverse the lathe and most of those you can work around.
Good luck, it looks like a nice machine!
In order to reverse the motor, one of the windings, usually the capacitor fed one (the "Start" winding), has to be reverse connected, so that the current flows through it in the opposite sense. The switch you have would be suitable to do this but the connections to the start winding must be positively identified and isolated from the connection block so that it can be remotely switched in forward and reverse modes.
Unfortunately, in the absence of any manufacturers wiring diagrams, it will be necessary to work out the connections from first principles, which will need someone with fairly deep electrical engineering skills, armed with a DMM. The link below will give some ideas but obviously relates to some modern motors in terms of the actual connections.
http://www.sentridge.com/wp-content/uplo...ng_1ph.pdf
Unless you can find someone who can work it out for you (unfortunately you're too far away for me to help), I would leave well alone. As people have commented, there aren't many times you need to reverse the lathe and most of those you can work around.
Good luck, it looks like a nice machine!