Attach the main shrouds to their respective chain plate, spinnaker hook on the outside, inserting the clevis pin from the outside in, with the safety pin inside, adjuster plates straddling the chain plate. The two most common attachment positions for the adjuster plates are:
1. The middle of the three open holes in the shroud adjuster plates to the top hole in the chain plate.
2. The bottom hole of the three open holes in the shroud adjuster plates to the bottom hole in the chain plate.