From inside (document excerpt):
T5 Series Rotor User’s Guide u To pull nozzle riser up: Insert tool blade into cap, twist blade 1/4 turn. u Pull nozzle riser up. u u To change nozzle/diffuse spray: Insert tool blade into cap. Retract nozzle screw to release nozzle. u Insert tool blade between nozzle lip and turret to slide nozzle out. u Insert new nozzle, and return nozzle screw to its original depth. u To shorten and diffuse spray, increase nozzle screw depth into stream. u u u u To adjust spray arc: Turn nozzle turret (in the direction of free travel) to view left and right arc stops.
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The left stop is fixed and aligned to the left border by turning the sprinkler. The right stop is adjustable from 40°360°. u To adjust the right stop, insert tool blade into cap. Turn blade left to decrease arc; right to increase arc. Note: One full turn of tool blade adjusts arc 90°. Example: Right stop increased to match right border. u Nozzle Performance Metric Charts Pressure Bar Radius Meters Flow 1 m³/Hr. Flow 2 LPM Precip. Rate mm/Hr. u U.S. Charts Pressure psi Radius Feet Flow GPM Precip. Rate In./Hr. Standard Angle Metric Rad. 10,1 10,2 10,4 10,7 10,7 10,8 11,0 Flow1Flow2 Precip.
Wikipedia’s page for Toro Company
Company Web Site: www.toro.com