A little late to the party but would painting the black inside with an oil base paint reduce the warping? Bob

Good morning everyone.
Thanks to everyone responsible for getting this forum back up. Never realized I could miss a forum but I did! Bob

Nice. What kind of glue did you use to glue the tulle to the fence posts? Bob

Ok, here we go. I used to overhaul "moveable structures" for a living. I'm in the US so it looks like there are some differences in terminology down under but the basics look the same. An opening sequence would go something like this;
1. Turn traffic lights red. I think that would be your switch labeled "Control Switch". Off is normal, traffic lights dark. Control position would start the sequence to turn the traffic lights red. When they go red the "Road Lights Red" indicator would light, a safety circuit would clear allowing movement of the gates and the "Gates Movable" indicator would light.
2. Lower oncoming traffic gates. Oncoming first so you don't trap anyone on the bridge
3. Lower off-going traffic gates. When the last gate reaches full closed another safety circuit is cleared so your span locks will operate and the "Lift Span Lock Operable" indicator would light.
4. Retract the span locks. I would guess that's the lever on the lower right labeled Extend, Off, Normal. Turn the switch to normal. When the locks fully retract yet another safety circuit is cleared enabling the lift motors and lighting the "Lift Span Operable" indicator light. A little something might get lost in the translation here but by US Coast Guard regulations navigable waterways have the right of way over all other traffic hence the "normal" condition is locks retracted, and bridge up.
5. Raise the bridge using the "Span Control" buttons.
6. A little guess work here. In the US the navigation lights both ways turn from red to green then the bridge is fully open. In your case it looks like once the span reaches fully open a interlock circuit will clear, lighting the "Nav. Lights Operable" indicator and allowing you to select upstream or downstream traffic using the "Navigation Lights" switch.
Time to lower it down.
1. Navigation Lights off.
2. Lower the span, changeover switch to off.
3. Extend the span locks, switch to off.
4. Open the off-going traffic gates, switch to off.
5. Open the on-going traffic gates, switch to off.
6. Turn the traffic lights green
7. Once traffic is moving, secure the board by turning the control switch to off.
The "Lift Span Motor" meter is an amp meter to tell how hard the bridge is moving. Without it you have no idea if something is binding until the parts start flying. The last bridge I did, a 4 leaf double bascule, had 8 drive units producing 1.2 million foot pounds each. If something goes wrong that'll
leave a mark. The "Changeover" switch is to select the back-up drive incase someone wasn't paying attention to the Lift Span Motor meter. Another useless tidbit. Drawbridges are overcorrected, if the brakes are released they fall slowly UP due to the too heavy counterweights. Bob H.

Karl, could you share the color mixing code for your Floquil Concrete replacement? My bottle dried out before I could paint a sample to get the color matched.
Bob

The heat from soldering doesn't make the glue let go? There do you get this tape? Bob

Nice. Who's kit is that?