- Joined
- Apr 30, 2015
- Messages
- 11,445
Chrisgr: Still need some more info: In post #3 you should not be getting a steady 4 ohms reading on 5 and 6 if the capacitor is good. A puzzle.
Secondly: Are there 2 pairs of "C" terminals (4 terminals total) or just one pair?
If we can solve the puzzle of the 5 and 6 wires I think I can do a sketch for you, I just want to make sure your start cap is ok first. If the 5 wire has the capacitor in series then you should see a low ohms reading which climbs toward infinity. Trace out the motor wires and make sure you are measuring after the cap and not before it. The reading you got in post #3 looks like just the winding itself without the cap in series.
There is an error on the diagram of the new barrel switch- it shows A and B connected together. A factory mistake. Disregarding that, I see how it works.
They neglected to show which pairs of internal contacts close in Forward and Reverse, but it can only work one way and make any sense: A and B get swapped, for reversing. C would be used to cut power to the whole motor. I'll do a sketch.
To answer your question in post #9- yes either the start winding or the run winding(s) can be swapped to reverse direction. Swapping the start winding usually puts less stress on the switch-less current
U and V are usually the run windings- Z is the start one
Secondly: Are there 2 pairs of "C" terminals (4 terminals total) or just one pair?
If we can solve the puzzle of the 5 and 6 wires I think I can do a sketch for you, I just want to make sure your start cap is ok first. If the 5 wire has the capacitor in series then you should see a low ohms reading which climbs toward infinity. Trace out the motor wires and make sure you are measuring after the cap and not before it. The reading you got in post #3 looks like just the winding itself without the cap in series.
There is an error on the diagram of the new barrel switch- it shows A and B connected together. A factory mistake. Disregarding that, I see how it works.
They neglected to show which pairs of internal contacts close in Forward and Reverse, but it can only work one way and make any sense: A and B get swapped, for reversing. C would be used to cut power to the whole motor. I'll do a sketch.
To answer your question in post #9- yes either the start winding or the run winding(s) can be swapped to reverse direction. Swapping the start winding usually puts less stress on the switch-less current
U and V are usually the run windings- Z is the start one
Last edited: