However, below is the info for not only the tensioner but the installation of the chain including timing marks. The first page gives some detail on the tensioner but the last page shows the actual part of the manual that covers the installation and release of the tensioner.
Please run through this info and let us know what questions you have.
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.