Lionel 6-12782 Lift Bridge Service Manual

Some info may have been spread across several documents?

I found a simple jpg on the computer I am typing on (attached) that describes how to adjust sensitivity for the stops with some adjustments in the control box.

I think I might have a pdf on another computer (which reminds me I really need to organize better! ) that discusses the stringing of the span to the mechanism in the towers.

I'll try to take a look later and see if I can find it.

Were you looking to fix a specific problem, or just looking for the manual for future reference when needed?

-Dave

Dave,

Thanks--my lift bridge will go up, but not down.  I get the overload indication when I flip the switch to "down."  I tried the sensitivity control with no effect.  Strangely enough, I get the same indication when the controller is powered on without being connected to the bridge.

Search this bridge on the forum - it is most likely the control box - several efforts have been made to get this modified/repaired - with no publicly offered solution

I don't recall if there are workarounds - there are a few very comprehensive threads on this product

Carl,

I searched the forum with no luck.  I was hoping someone had the service manual as a wiring diagram would be extremely useful.  I can always add a DPDT switch to the bridge, but I would like to retain the original functionality.

I looked at the doc I had on the other computer, it was just the 10 page user manual with 2 addendum pages after it.  One page was pretty much the same as the page I posted above, the second was a textual page about re-stringing. 

Nothing with a schematic or more detailed helpful hints for your problem, I'm afraid.

-Dave

Thanks again.  I'll probably try replacing a few components on the board.

Here is the thread on the control box - there are no schematics anywhere for this bridge

Here is a general search results - check out the 6-12782 posts

Nice bridge when it works - subbed out by Lionel - all of the manf data is lost -