SPRINKLER TALK FORUM - You Got Questions, We've Got Answers

I just had to replace a broken sprinkler head in my yard, and picked up a Toro SingleStream Lawn Sprinkler (Model 53737).

It is set to a 360 degree sweep, but I want something less than that. The instructions with the head give no information about how to adjust the sweep, although it does state that the pattern can be altered. When I got it installed and fired it up, it is sweeping at 360 and getting into my neighbor's yard.

Any suggestions on how to adjust the sweep? I've tried pushing down on the head and twisting, but that does not seem to work.