Bachmann Online Forum

Discussion Boards => Williams by Bachmann => Topic started by: tomplatten on November 16, 2009, 11:59:44 PM

Title: Starting in Reverse
Post by: tomplatten on November 16, 2009, 11:59:44 PM
I run my F-7's with the powered unit in the rear in the old Lionel tradition! Therefore, in my case, it would be better if my F-unit actually started in reverse! I was told that the easiest way to do that was to reverse the motor leads.What is your thinking on this?
Title: Re: Starting in Reverse
Post by: stubbsO on November 17, 2009, 12:58:52 PM
I concur! It's simple, easy, clean, and can be put back to stock without alot of hassles.
Title: Re: Starting in Reverse
Post by: phillyreading on November 17, 2009, 04:10:42 PM
I just added a motor kit to an unpowered F-7 A unit and all I did was reverse the motor leads, the two wire plug-in connectors. In my kit the only problem was that the motor was missing it's red dot, so I had to see which way to wire it was forward or reverse.
If you get the motor kit for an upgrade, the new motors run faster than the old Williams F-7 motors, even wired straight(the old motors) from a bridge rectifier.
My problem with the older Williams F-7 diesels is that after sitting for over 45 minutes the F-7 would start in reverse, even when locked into forward, so I did as somebody on CTT said to do & that was to wire the motors straight to a bridge rectifier because the motors are DC(direct current) not AC.

Lee F.
Title: Re: Starting in Reverse
Post by: 3rail on November 23, 2009, 02:26:37 PM
Dear Tom,

You can either reverse the leads on both motors, or unmount the trucks and swap the positions of the motors without rewiring them.  That can be a hassle on some locomotive due to the mounting position of the reverse board.  The easiest fix is on  the FMs, SD-45's and FP-45's; the cab will mount in either direction.

Regards,

3rail