Hunter G835 - Arc Adjustment Procedure - G35, G75 & G95 Adjustable Part-Circle Risers

With any adjustable riser held in hand – 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 (g 21). Seal assembly must be held in this
position. If riser is installed within the rotor’s body, the lift socket and tool can be used to expose the turret (g 22).
Rotate the nozzle housing back and forth until the right side arc stop is found. This is the xed (non-adjustable) side
of the arc. All adjustments should be made with the nozzle housing in this right stop position.
With riser installed and rotor operating (g 23) – Rotate the nozzle housing back and forth until the right side arc stop
is found. This is the xed (non-adjustable) side of the arc. All adjustments should be made with the nozzle housing in
this right stop position.
ARC AdjuSTMenT PRoCeduRe
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g35, g75 & g95 AdjuSTAble PART
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CiRCle RiSeRS
All adjustments are initiated by inserting the small end of the T-handle tool or the plastic end of the Hunter wrench
into the riser’s adjustment socket. The adjustment socket can be found on the riser’s rubber cover by locating the
circular depiction with arrows going in opposite directions (g 24). Insert the tool through the rubberized membrane
to engage the adjustment mechanism. Again, all arc adjustments must be made with the turret oriented to the right
xed side of the arc as outlined in the section above.
To increase the arc of coverage – insert the tool into the adjustment socket (g 25) and make sure the nozzle housing
is at the right arc stop position. Each full turn of the tool to the right (clockwise) will increase the arc by 45 degrees.
Two full turns of the tool will result in a 90 degree increase in the arc of coverage. The arc is innitely adjustable from
40 to 360 degrees. When maximum arc is reached, the tool will stop turning or, a ratcheting sound will be heard. To
check the arc setting, rotate the turret back and forth. If further adjustments are required, repeat the steps above.
To decrease the arc of coverage – insert the tool into the adjustment socket (g 25) and make sure the nozzle housing is
at the right arc stop position. Each full turn of the tool to the left (counter-clockwise) will decrease the arc by 45 degrees.
Two full turns of the tool will result in a 90 degree decrease in the arc of coverage. The arc is innitely adjustable from
40 to 360 degrees. When minimum arc is reached, the tool will stop turning or, a ratcheting sound will be heard. To
check the arc setting, rotate the turret back and forth. If further adjustments are required, repeat the steps above.
See “Riser Replacement” section for instructions on aligning right side xed arc stop to landscape and snap ring installation.
FIG 24 FIG 25
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Fig 25
Fig 26
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Fig 25
Fig 26
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