How to Disassemble a Hunter I-20 Sprinkler Head

Removing the Nozzle

• 1

  Insert the plastic key that came with the equipment into the lifting socket of the sprinkler.

• 2

  Turn the key 90 degrees clockwise, and pull up the riser.

• 3

  Insert the hex end of the Hunter key into the radius adjustment screw on the top of the sprinkler head.

• 4

  Turn the key counterclockwise, and slowly pull out the adjustment screw. Either turn on the water or pull on the nozzle post with a pair of needle-nose pliers to remove the nozzle. This is as far as you can disassemble the sprinkler head.

Remove the Main Spring

• 5

  Remove any dirt from around the body retaining nut, which is the black ring at the base of the nozzle.

• 6

  Turn the nut counterclockwise until it pulls free from the sprinkler body.

• 7

  Pull up on the sprinkler head assembly to remove the internal spring from the sprinkler shell.