Replace power supply with med grade

The power supply can be mounted on its side, as shown (green object), or laid flat.

All mounting holes of the power supply are M3 thread. Drill two 1/8″ holes at 4-5/8″ from each other in the steel angle of the base to mount the power supply on its side or 4-11/16″ apart if mounted flat.

Transfer the wires to the equivalent terminals of the new unit.