Servicing And Maintenance - Hunter ST Series Owner's Manual

A. Replacing the cover and rotor
1. Remove center plug with a flat-
blade screwdriver and unscrew the
nut underneath using a 1/2" (13 mm)
socket.
➊
2. Use the gear-drive insertion/
removal tool to unscrew the rotor
from the piston. The tool will grab
onto the screws below the rotor.
➌
3. Turn the wrench counterclockwise
until the unit is free from the
threads.
4. Lift the unit out of the body.
|
Visit support.hunterindustries.com
B. Replacing the propeller and
checking for debris
1. Remove the eight screws on the
turbine housing (six large, two
small).
2. Pull to remove the propeller cover
and expose the propeller.
3. Remove the propeller from the
housing to clear any debris that
may be trapped inside.
C. Speed control adjustment
1. Turn the brass knob clockwise to
slow down rotation.

Servicing and Maintenance

D. Servicing secondary nozzle
1. Unthread the secondary nozzle.
2. Clear any debris that may be
trapped inside.
E. Arc adjustment
1. For part-circle operation, reach
inside the rotor to set the arc
adjustment rings to the desired arc
setting.
2. For 360° operation, remove both
adjustment rings.
Page 5