Old motor question

[sonnysmith]

I have an old metalist. motor sets in line with the cart. Motor has 4 terminals in a row. They are A1A2F1F2. I took all wires off motor made a jumper from A2 to F1 applied 12 volts to A1 and F2 the motor run in reverse. I change pos. and Neg. and the motor still runs in reverse. What is wrong??
Sorry I've never had a motor do this before.

Sonny

[cgtech]

That doesnt make sense..

[Volt_Ampere]

That is exactly what it should do!!! REversing the + and - reverses the armature volts and the field current so it still goes the same direction. You need to reverse either F1 an F2 OR A1 and A2 to change direction.

[cgtech]

Oh yeah, duh..... Otherwise the motor would only need 2 wires going to it.

[sonnysmith]

I know cg it doesn't make since to me either. That's why I yelling for help. LOL

thanks
sonny

[cgtech]

Originally Posted by Volt_Ampere

That is exactly what it should do!!! REversing the + and - reverses the armature volts and the field current so it still goes the same direction. You need to reverse either F1 an F2 OR A1 and A2 to change direction.

I think Volt_ampere got it right. Otherwise the F&r could reverse the direction with only 2 wires going to the motor. If it worked that way, the factory would save the wire & complexity by just running 2 wires to the motor (and saved money, copper aint free).

[sonnysmith]

Ok I'll try that tomorrow. Don't know if I have every had this problem. Most of the time, if it will run in one direction it will run in the other. This one want.
Thanks
Sonny