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Signature 90050743 Piston Tool

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Signature 90050743 Piston Tool

Use the Signature Piston tool to help repair the 5500, 6000, 6500 Pro Series Rotors.

Gear Drive installation & adjustment

Attach to underground pipe

Caution: Do not use pipe dope. Make sure the gear drive is installed at the finished grade height.

Clamp in “up” position

Grab protective cap and pull up until seam appears, slip clamp in place.

Removing Baynote Protective Cap

It works much like a medicine bottle cap and helps t insure the protective cap stays assembled. It is safe and vandal resistant whe optional screw in installed. All models are designated with model number stamped in rubber cover for easy identification.

Select and Install Nozzle

Back out nozzle retaining screw. Slip nozzle into hole and replace screw. Make sure screw is driven in enough to clear surrounding plastic, or bayonet cap will not twist on. For heads at the bottom of slopes, an ADV dish can be installed to reduce run off when the system is off.

Full Circle Adjustment

For FULL CIRCLE; leave black side up. No need to set collars.

Part Circle Adjustment

  • Remove Click-Set Disk
    • And manually turn sprinkler unitil nozzle points to the center of the desired watering area.
  • Place Click-Set Disk in Position Gray Side Up
    • Adjust collars to desired angle.

Memory Ring Protection

If sprinkler is manually turned past the set pattern, the memory ring will pop temporarily out of position while the sprinkler rotates around to its original part circle pattern. If the memory ring gets out of position while you are setting the pattern, remove the dish and rotate the ring with your fingers until the tab clicks into place.

Quick Adjust

Ratcheting piston allows for quick turret adjustment for part-circle application-wet or dry. The ratcheting piston will not break during adjustment.

Check With Water On

Check part circle patterns. Turn diffuser screw clockwise to diffuse spray as needed. Make sure top of diffuser screw is below surrounding plastic.

Caution: Turn water on slowly to bleed air during initial start-up. We recommend avelocity fill rate of less than 2 feet per second.

Replacement Bayonet Cap

  • Standard Installation
    • Twist bayonet cap on and make sure it snaps into the locking position
  • Locking Screw
    • Twist cap on and line up with nozzle. Turn screw in through dimple on top of cap. Screw in until top of screw ios recessed into rubber.
Rotor Tool
All Signature
Product Type:
Rotor Tool
Average Rating:
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1 Review
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Some are 30 yrs old
This sprinkler is essentially the Nelson 6000. 30 years ago I put in about 25 of the Nelson 6000 heads. Probably 15 are still operating. The 10 replaced were damaged by vehicles or mowers or aerators, or what ever. But the best part of these is how easy they are to aim and adjust the distance of the spray. I have about 40 sprinkler heads in my yard now. I have 4 other makes of gear drive heads and now replacing them with these Signature 6000's. There is no better residential sprinkler than these 6000 model sprinklers.
September 10, 2019
9 months ago
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Browse 1 question Browse 1 question and 3 answers
Why did you choose this?
SprinklerWarehouse.com Store
To repair old/new heads
Richard P on Jul 4, 2018
because it works with my signature pop up heads
ed on Jun 6, 2017
To repair old/new heads
Richard P on Jul 4, 2018
signature product
Chet H on Jul 31, 2017
because it works with my signature pop up heads
ed on Jun 6, 2017
signature product
Chet H on Jul 31, 2017