Cams assist with the proper tensioning of tire chains. Each outer side chain has 3 or 4 cams. With the included cam tool, turn each cam clockwise to the locking notch and take up the side chain slack.

The process of tightening a cam on tire chains can vary depending on the specific design of the tire chains you are using. However, here are some general steps that can help guide you:

1. Secure the chains: Place the chains over the tire, making sure they are centered and evenly distributed across the tread. Connect the ends of the chains behind the tire, using the provided hooks, fasteners, or tensioning devices.

2. Adjust the tension: Locate the cam mechanisms on the outer side chain links. These cams are usually equipped with some form of tensioning system. Common methods include built-in tensioning devices, rubber or bungee tensioners, or separate tensioning chains or straps.

  a. Built-in tensioning devices: If your tire chains have integrated tensioning devices, follow the manufacturer's instructions to engage the tensioners properly. This may involve flipping a lever, rotating a dial, or pulling on a strap to tighten the tension.

  b. Rubber or bungee tensioners: If your tire chains have separate rubber or bungee tensioners, position them over the cams and stretch them to connect to the appropriate anchor points or hooks on the opposite side of the tire. This will create tension and securely tighten the cams.

  c. Separate tensioning chains or straps: In some cases, tire chains may require separate tensioning chains or straps to tighten the cams. Attach these chains or straps to the appropriate points on the tire chains and adjust their length to achieve the desired tension.

3. Check tension and fit: After tightening the cams, ensure that the chains are snugly fitted to the tire and there is no excessive slack. The chains should be secure and properly aligned with the tire tread.

A Cam should not take the place of a tensioner, Cams can get knocked loose or come undone therefore adding a additional tensioner helps secure the chain in place.