Skip to content
  • There are no suggestions because the search field is empty.

Main Gear replacement on Dr. Dish Home, Rebel+, All-Star+, CT+, and FCLTY models

Below you will find a step-by-step guide on replacing the Main Gear in your Dr. Dish Home, Rebel+, All-Star+, CT+, and FCLTY models

Required Tools

  • 27 mm Wrench or Large Adjustable Crescent Wrench

  • 5 mm hex wrench or 5 mm hex socket (with short and long extensions for a ratchet)

  • Flathead Screwdriver or 12 mm wrench
  • Side cutters (wire cutters)
  • 4 mm hex wrench - For shroud removal
  • #2 Phillips Head Screwdriver - For shroud removal

Video Guide

 

Written Instructions

  1. Turn Off Power: Ensure the machine is unplugged and powered off.

  2. Remove Shrouds
  3. Disconnect Wire: Locate and disconnect the P12 and P18 connectors from the power board by pinching and pulling it off the terminal.
  4. Cut Zip Ties: Use wire cutters to carefully snip the zip ties securing the P12 and P18  cables together and to the frame.
  5. Remove the Potentiometer: Loosen the hose clamps securing the potentiometer shaft to the hose using a flathead screwdriver or socket. Remove the two mounting bolts (with their lock and flat washers) and slide the potentiometer assembly out.
  6. Remove the Rotation Motor: Use a 5 mm Allen wrench or ratchet to remove the four bolts (two in front, two in the rear) securing the motor. Hold the motor with one hand as you remove the final bolt, then slide the assembly out.
  7. Remove the Main Gear:  With a 27 mm wrench remove the large nylock nut on top of the main gear. You may need to brace yourself against the frame for leverage.
  8. Swap the Gear: Slide the old gear off the main shaft. Ensure the thrust bearings and washers beneath the gear stay in place under it. Slide the new gear onto the shaft, aligning the flat sides of the gear with the flat sides of the shaft.
  9. Secure the new Main Gear: Hand-tighten the new nut first, turning it counterclockwise (backwards) until you feel it "click" into the thread to avoid cross-threading. Use the 27 mm wrench to tighten it very firmly.
  10. Reinstall Rotation Motor: Gently slide the new motor into its mounting bracket, aligning the four mounting holes.
    1. Start Front Bolts: Insert and lightly thread the two front bolts into their holes, but do not tighten them yet. 

    2. Push the Motor In: Use one hand to firmly push the motor inward so its drive gear meshes securely and flush against the machine's main gear.

    3. Tighten First Bolt: While holding the motor firmly pushed in, securely tighten one of the front bolts to lock the motor into the correct gear-mesh position.

    4. Secure Remaining Bolts: Tighten the remaining front bolt, and then fully tighten the two rear bolts. Ensure all four bolts are tight, but do not overtighten.

  11. Reinstall the Potentiometer: With the two hose clamps still in place on the hose piece Slide the hose onto the static main shaft of the machine.
    1. Slide the potentiometer shaft into the hose and secure the mounting bracket to the frame with a 4mm hex wrench, using the original bolts and washers.
  12. Reconnect Cables: Plug the P12 and P18 connectors back into their respective ports after re-routing them through the machines frame as they were previously. Secure the cables with new zip ties and trim the excess.
  13. Manual Potentiometer Calibration: ***Please note the body of the machine will need to be positioned as if it were being used to shoot from the Free Throw position (facing center) for this process to be completed successfully***
    1. Connect Power and App: Reconnect the machine to the power source and turn it on. On your control tablet or phone app, navigate to Support > Troubleshooting > Calibration and look at the "Potentiometer" value.
    2. Find Center Point:  Tighten the top hose clamp, securing the hose to the Potentiometers shaft in the hose.
      1. With the lower clamp still loose, use pliers to rotate the hose until the value on the screen is as close to 500 as possible (400–600 is acceptable).
    3. Tighten Lower Clamp: Once the value is as close to 500 as you can get it, tighten the lower hose clamp firmly so it doesn't slip during operation.
      1. The Potentiometer value will change as you are tightening the lower hose clamp. This is normal and expected. Keep an eye on the value to keep it close and at least in-between 400-600 while you are tightening it. 
    4. Secure Cables: Replace any zip ties you removed earlier to keep the wiring tidy and away from moving parts.
    5. Run Full Calibration: Complete the standard rotation calibration process in the app to ensure the machine recognizes the new center point.
      1. You can locate the calibration process at the following menu location in the App. More > Support > Troubleshooting > Calibration
        1. CT Model: Please note the menu location for the calibration process is not the same. on the CT model. CT owners will need to select, from the home screen of the app, the Settings Gear > System Status > Rotation Calibration > Calibrate > Run Calibration Test. 
    6. Reinstall Both Shrouds

If you encounter any issues with the replacement process we’d love to assist you further! If you are already working with a representative please reply to them indicating the step you are getting stuck on. If you are not please start a support ticket here or you can call the Support+ Team at 612-412-4410!