From inside (document excerpt):
Watering Arc Adjustment English Español Align the cap arrow with the left side of the watering area. This is the nonadjustable side of the watering arc. TR70XT SERIES ROTOR Instruction Guide Français Turn the arc adjustment ring to align the right stop arrow to the right side of the watering arc. The watering area can be adjusted between 30° and 360°. When set to 360°, the nozzle does not reverse direction. Deutsch 360 Right Stop Arrow Italiano português The watering area is between the cap arrow and the right stop arrow on the arc adjustment ring.
This example is set to 180°. Nozzle Trajectory Adjustment Align the right stop arrow to the right side of the watering arc. The nozzle trajectory angle can be adjusted between 5° and 25°. Insert the blade end of the sprinkler tool or a screwdriver through the cap. Turn the adjustment screw right to decrease the angle and shorten spray radius, or left to increase the angle and lengthen spray radius. Changing Nozzle The TR70XT sprinkler comes with seven additional nozzle sizes from 7 to 27 GPM (31.8 to 122.7 LPM). To change the nozzle, insert the blade end of the sprinkler tool or a screwdriver through the cap. Turn the nozzle screw out until it clears the nozzle. Pry the nozzle out at the bottom and install the new nozzle. Return the nozzle screw to its previous position. 102-1303 102-2633 Adjusting Spray Cleaning Screen Remove and flush screen as needed. Turn the nozzle screw in to diffuse and shorten the spray radius. Flow Shut Off Turn the center screw right to shut off flow. Turn the screw left to open flow. To maintain left stop, align riser with body as shown when reassembling. Check Valve To eliminate check valve function, install the check valve disk in position B. 2004 The Toro Company, Irrigation Division · An ISO 9000-certified Company · www.toro.com Form Number 373-0289 Rev. B
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Company Web Site: www.toro.com