The lockpin is screwed in through the valve body and normally

The Emperor Sea-mounts chain meets the Aleutian Trench at the northern end.

Place the valves in position, and push them up into the valve bodies until the guide spiders are against the shoulders at the upper end of the valve bodies.

The lockpin is screwed in through the valve body and normally bears up against the adjusting ring.

The shaft sleeve is butted up against a shoulder or the shaft.

When the program pin is seated against its stop button,...