You should remove the spindle from the spindle mount each time you change your cutter. Always unplug the SM1 Spindle from Origin before removing the spindle from the spindle mount. Use the included 4mm T-handle hex wrench to loosen the spindle mount bolt. Once the screw is loosened, lift the spindle to remove it.
To reinstall the spindle, slide it into the spindle mount with the ON/OFF switch facing towards you. A groove on the back of the spindle will only allow it to be inserted in the correct orientation, with the cable exiting on the left side.
Gently re-insert the spindle to prevent damage to the alignment pin. Remember to tighten the spindle mount bolt after fully inserting the spindle into the spindle mount. Finally, ensure the switch is in the “OFF” position and plug the spindle cable back into the side of Origin.