How do you change the Remington R5130 razor heads?

To change the razor heads on the Remington R5130, first ensure the razor is turned off and unplugged. Press the release button to detach the shaving head from the handle. Then, remove the old heads by lifting them off the retaining posts and replace them with new ones, ensuring they snap securely in place. Finally, reattach the shaving head to the handle until it clicks into position.