Wiring drum switch

[john shaw]

Hello, I recently purchased a century 3/4 hp. motor for my lathe. the motor has a L1 and L2 and a notation stating reverse red and black to change rotation. i want too use 6 pole rotary drum switch for reversing. i am hoping someone can give me a wiring diagram for this motor/switch.

line one has 1 black wire going into the winding
line two has a yellow wire going into the winding
there is another connection that is part of line two that has a black wire going to the centrifugal swiitch
the other end of the cen. switch has a black wire leading into the winding
there is a terminal marked 4 that has two blue wires both going into the winding, also there is a red wire that is used for reversing rotation.

the switch is a 6pole cuttler hammer /eaton (circa 1941)

an e-mail with a drawing would be most helpful: bebethshaw11@yahoo.com

 

[markba633csi]

Hi John, I can take an educated guess at how to connect it
if your drum switch has the familiar "hockey stick" contact arrangement:
red and black reversing wires to 3 and 4
120 volt power to 1 and 5
2 and 6 to the motor power input terminals
if it doesn't work you'll need to post some pictures of your motor and switch
-Mark

 

[markba633csi]

If you have this style of switch the above instructions won't work,
A different hookup is required

 

[john shaw]

Hi John, I can take an educated guess at how to connect it
if your drum switch has the familiar "hockey stick" contact arrangement:
red and black reversing wires to 3 and 4
120 volt power to 1 and 5
2 and 6 to the motor power input terminals
if it doesn't work you'll need to post some pictures of your motor and switch
-Mark

Thanks for the reply, I do have the type of drum switch and you are correct it does not work. is there an alternative wiring that will work with . have a drawing from century motor that i could e-mail you.
I dont know how to post photo on this site.

 

[markba633csi]

Hi John, which type of switch do you have? The hockey stick type or the 3-phase?
My email is: scintilladesigns@gmail.com if you want to send motor info
Does the motor run by itself without the drum switch?
-M

 

[john shaw]

Hi John, which type of switch do you have? The hockey stick type or the 3-phase?
My email is: scintilladesigns@gmail.com if you want to send motor info
Does the motor run by itself without the drum switch?
-M

the motor runs fine.
my switch is a 6 terminal type,

Hi John, which type of switch do you have? The hockey stick type or the 3-phase?
My email is: scintilladesigns@gmail.com if you want to send motor info
Does the motor run by itself without the drum switch?
-M

I have the switch you show in HSdig1, not the three phase type

 

[markba633csi]

OK email what you have, I'll take a look

 

[markba633csi]

John here is a sketch that should work. The "rotation leads" red and black are pulled off the motor terminals and extended to reach the drum switch.
Let me know
-Mark

 

[john shaw]

I have already tried that as per your drawing in your first message. i did not get a schetch in your latest reply. terminal 1&5 power from wall, 3&4 go to the wires inside motor (red black) 2&6 attatch to the terminals inside motor marked line 1 line2

 

[markba633csi]

Sorry, forgot to upload the sketch
Let me take another look at the Century diagram your wife sent, I might have missed something
Question: Are you getting a hum from the motor or nothing at all? Hopefully not sparks and flames
First test:
1) Disconnect drum switch 3 and 4. Put the red and black "rotation leads" back on to the motor 2 and 4 terminals. Keep the drum switch 1,2, 5 and 6 connected. Motor should run in one direction when switch is thrown forward or reverse.
I'm suspecting your drum switch might be at fault