Bosch 4000 speed control wiring to motor

[RJWLOGIC]

I thought that it would be easy to remember the wiring terminal connection configuration. I have the parts diagram, but it only shows two wires. When reassembling a couple days later, I started having doubts if the white from the switch is with the blue from the SC board and the black from the SC board is connected to the white of the field and the black from the switch is connected to the black of the field. A picture should have been taken. Since these saws have some much motor replacement trouble, can anyone confirm/straighten my wiring thoughts to the right connections. I found another model that had the three two wire connections and it made more sense.

[UtahAV]

Hi RJWLOGIC,

We have a model #4000 in our shop right now. Here is how it is wired up...

Black cord to Blue controller
White cord to White field
Black field to Black controller
Black controller wire with connector to the other field connection.

I hope this helps!

-UtahAV
-Mark

[RJWLOGIC]

I greatly appreciate the detailed response. It now soft starts and rotates the correct direction. All is good for another round for this motor. Thank goodness it was only a rear bearing and housing. I replaced the speed control because that piece could not be tested like the armature and field, which both tested OK. I'll take the picture and or write it down next time.

[UtahAV]

You're welcome! I'm glad that we could help!

-UtahAV
-Mark