Make sure the switch in the off position. Disconnect the positive and negative battery terminal.

A030 Master Disconnect Switch Wiring Diagram Wiring Library
Master disconnect switch wiring diagram. Testing the 4430 master battery cut off switch. This is very important. Choosing a switch that is used worn or underrated can result in serious electrical problems or even fire. Buy a new switch. If you have any questions or doubt about how to use install or wire any battery switch consult a certified marine electrician. Remove the switch handle by loosening the screw in its center.
With the switch on there should be continuity from one 38 stud to the other 15 ohms or less resistance. A 4 pole switch is used to disconnect both the battery and the alternator feed simultaneously without the. Testing the 4430 switch usually requires only an ohmmeter or continuity tester but the switch should be removed from the car and all wiring disconnected before testing. Connect a battery cable from the starter or starter solenoid to one of the 12 switch terminals. These switches are wired to a cars battery and can be used to instantly cut the power to an engine in an emergency situation. The easiest type of switch you can use is a simple terminal disconnect switch.
Remove the first nut and lock. So not surprisingly these switches are most often used in race cars where the odds of the driver being in a catastrophic crash are much greater than that of most drivers. Battery disconnect switches help manage the overall use of electrical power on board. But adding on off switches to the circuit you can force the alternator to charge the battery you want charged. Pass the switch through the hole in the panel and secure in place using the lock washer and nut. Re attach the switch handle.
Apply the onoff label. This 4 pole switch makes installing a master disconnect switch much simpler. Disconnect the positive and negative battery terminals. Installing a battery disconnect switch in a car can save lives if used in the proper situation. Be sure your new switch is rated to handle the load of your vehicles battery. The battery cable should be a minimum of 2 gauge wire.
Connect a jumper wire from the alternator output terminal to one of the 316.