Hunter STK-1 Instrucciones De Instalación página 22

INSTallaTIoN INSTruCTIoNS for huNTEr STK-2
Once the rubberized logo cap is removed, use the heal on the palm
of your hand to forcefully press the riser assembly down (fig 4) and
below the rubberized wiper seal on the snap-ring assembly (fig 5).
When the rotor is dry (without water within) more force is required.
If sprinkler is installed and has been activated, the water acts to
lubricate the wiper making the procedure much easier.
fIGurE 4
To remove the snap-ring assembly, hold Snap-ring Tool vertical
over the rotor's upper snap-ring area. Align the metal end of
the snap-ring tool to the indicator on the snap-ring's rubberized
wiper seal (fig 6). Use the palm of the other hand to press the tool
downward and through the rubberized membrane (fig 7). Tool
should penetrate about ¼" into the snap-ring assembly. While
holding the tool within the snap-ring, press the handle of the
tool downward and away from the rotor. As the tool is pressed
downward, the snap-ring will lift from the rotor. While using the
tool to hold the snap-ring in this elevated position, use the other
hand to pull the snap-ring from the rotor (fig 8). If the snap-ring's
rubberized wiper seal appears to be the only part that is lifting, the
tool has not penetrated into the snap-ring far enough.
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fIGurE 5 fIGurE 6
fIGurE 7
Riser Assembly Removal
To remove the riser assembly, first remove the upper snap ring as
outlined above. Insert the Hunter Wrench, T-Handle Tool or tip of
the Snap Ring tool into the riser's lift socket, turn ¼ turn and lift the
riser from the rotor's body. The STG-900s have a lift up socket that
is accessed directly on top of the riser (fig 10).
Arc Adjustment Preparation
All Hunter adjustable arc rotors have a fixed stop on the right side
of the arc and an adjustable stop on the left side of the arc. Arc
adjustments can be made with the riser in hand or, after installation
with the rotor not activated or, while the rotor is in operation. Before
setting the arc, it is necessary to first establish where the right side
fixed arc stop is located.
To expose the rotate-able nozzle housing (also known as the
turret), press down on the riser seal assembly to compress the
riser's retraction spring (fig 11). Seal assembly must be held in this
position. Rotate the nozzle housing back and forth until the right
side arc stop is found. This is the fixed (non-adjustable) side of the
arc. All adjustments should be made with the nozzle housing in this
right stop position.
fIGurE 8 fIGurE 10
ENG