Need help with insulating pins connecting paired switches back to back

See page 32 of this booklet.  1954 Lionel Trains

Double check phaseing.

A Sherrod posted:

Help!!!!

I'm trying to resurrect an old-age model train set that I put in storage in the year 2000.
The layout is 8' x 8' with two ovals, one inside the other.
I am running a combination of TMCC and conventional engines.
Everything works except when I tried to connect to switches which connect oval 1 to oval 2.
One Paris switches are O-22 and one parent switches areO-72.
In either case, when I connect the switches, causing oval 1 and oval 2 to be interconnected, with insulating pins in the center rail to avoid shorting the TMCC PH-1 on oval1 and  the ZW on oval 2, I always get a short.
I will try to connect the layout diagram with this post.
Transformers are in phase.
However, I do not know if the outside rails need to be connected in any special way.
Please help! I have two grand nephews, age 3 and 4 waiting to see the trains!
Thank you in advance for any help.

Not 100% sure but sometimes transformers don't always phase correctly. You could use handle A for one loop and handle D for another loop and provide power from handle B or C to the TMCC unit if needed. That way you use only one transformer.

I have used 022 switches from the post war time and don't have any problem with pairing them, so I suspect a transformer hook-up issue.

Lee Fritz

The modern unit drops out, not both right? They are very sensitive and not thermal breakers. it is possibly seeing the bridged circuit the rollers quickly make, as an issue. But you also need up to three insulating pins between the turnouts because of anti derail trigger rails. Or you could have the inside edges of narrowly gauged wheels or a uncoupler picking up the center.

How are you powering the switch motors? Check that. 

3 pins between the switches, as Adriatic pointed out

Check the phasing again

Sorry no one saw your post in time.