Older sears bench grinder wont run 1/3 hp model 397 19581
Hi again, OK, Well since I don't have a wiring diagram and the colors
don't help. I am also going to assume it is 110VAC. The larger wires
are probably the run or primary, it you remember which ones were
connected it will help with polarizing. ( getting it to run in the
right direction as well as the start and primary working together).
You can use the two terminal switch but you should use a three wire
cord. Use the switch to break the neutral and ground the case. The
connections should be as follows: Connection 1, would have one of the
primaries and one of the starts to neutral. Connection 2, the other
start to the relay. Connection 3, the coil side of the relay to the
remaining primary. ( if the relay has two connections on one end and one on the other it would be the single) Connection 4, the 3rd position on the relay to hot. That is how a split phase is wired. You may find a simple wiring diagram on the net if you type split phase motor wiring diagram. Good Luck to you, this should Fixya!
Mar 04, 2009 |