Step1: Disconnect main power supply and verify complete electrical isolation before installation.
Step2: Remove the access panel to reach the existing interlock switch assembly.
Step3: Label and disconnect wires from the old switch terminals carefully.
Step4: Remove mounting nuts and detach the damaged interlock switch.
Step5: Install the new switch with the protective boot and secure it firmly.
Step6: Reconnect wires to the correct terminals.
Step7: Reinstall the access panel, restore power, and test the safety interlock operation.