Switch Wiring in VIC 12 Vacuum assist

I have received a second hand Rio Grande VIC 12 2’nd hand vacuum
assist casting unit. Unfortunately the investment/casting switch (
P&B W33-S4B1Q-15) had been removed, It would be helpful to understand
the correct wiring setup for the replacement switch. The four wires
that connect

are :-

Main loom - white neutral phase, orange power phase,

From “Power switch” on front panel - white from left hand "Line"
switch terminal, black from right hand “Line” switch terminal.

A definition of the correct connection sequence to the “Line” and
"load" connections of the “Investment/Casting” switch would be
extremely helpful.

Kind regards

Why not contact Rio Grande and see if they can furnish a wiring
diagram for the V.I.C.