Hunter Professional Series Manual

®
Radius Reduction Screw
Nozzle
ID. Tab
Plus+
Minus-
Arc Adjustment
Arc adjustment
(All PGM adjustable heads are PRESET to
approximately 40˚)
1. Rotate the nozzle turret counterclockwise
to the left stop.
2. Now, rotate the nozzle turret clockwise to
the right stop. This is the fixed side of the
arc. The nozzle turret must be held in this
position for all arc adjustments.
To increase arc:
1. Insert the key end of the Hunter wrench into
the adjustment socket on top of the sprinkler.
2. While holding the nozzle turret at the right
stop, turn the wrench clockwise. (Note: all
adjustments can be made with less than
one full turn of the adjusting wrench.)
3. Wrench will stop turning when adjusted to
the maximum arc (360˚). Do not go past
this stop.
4. Adjust to any arc between 40˚-360˚.
Hunter Industries Incorporated • The Irrigation Innovators
www.HunterIndustries.com
Professional Series™
Adjustment
Socket
®
Pull-up
Socket
To decrease arc:
1. Insert the key end of the Hunter wrench into
the adjustment socket.
2. While holding the nozzle turret at the right
stop, turn the wrench counterclockwise.
3. Wrench will stop turning when adjusted to the
minimum arc (40˚). Do not go past this stop.
4. Adjust to any arc between 40˚-360˚.
Radius adjustment
To decrease radius:
1. Turn nozzle-retainer/range-adjustment screw
clockwise. This can reduce radius up to 25%.
2. If an even smaller radius is desired,
install a smaller nozzle. This will affect
precipitation rate.
To increase radius:
1. Turn nozzle-retainer/range-adjustment screw
counterclockwise.
2. If larger radius is desired, install larger
nozzle. This will affect precipitation rate.
Precipitation rate adjustment
To increase precipitation:
1. Remove existing nozzle.
2. Replace with larger size.
3. Adjust radius.
To decrease precipitation:
1. Remove existing nozzle.
2. Replace with smaller size.
3. Adjust radius.
Note: Undamaged nozzles are reusable.
Nozzle sets are also recyclable.
Gear Driven Sprinklers
© 2003 Hunter Industries Incorporated
P/N 700109 LIT-109
PGM
4/03