6 pin vs 9 pin switches
As a minimum you should beg or borrow some kind of continuity tester that can confirm which connectors on the switches are electrically connected in each (usually 2, sometimes 3) mechanical state. A continuity tester can be a VOM set to measure resistance, a battery and a light bulb, or a battery and a buzzer. You need to identify which pairs of connectors are "normally open" or "normally closed" since this characterises a switch's function. The other electrical characteristic of a switch is its maximum voltage and current ratings that should not be exceeded; you have to find where these are specified because you cannot measure them. It would be dangerous to use a switch intended for a low-current low voltage circuit in a mains voltage power circuit.