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Introduction

The propeller motors are a crucial component in providing power to the propellers so that the 3DR Iris Plus can fly. However, if you are experiencing any problems with one or more motors that is preventing the drone from flying (which can be diagnosed using our troubleshooting guide), you will need to replace them. This guide details how to replace one of the motor assemblies used within the 3DR Iris Plus.

  1. Power off the drone by holding down the power button.
    • Power off the drone by holding down the power button.

    • Remove the battery by disconnecting it from the main battery connector.

    • Press the power button again to ensure all electricity is discharged.

    • This step is imperative as it is dangerous to handle drone components with a running current!

  2. Take note of the propeller cap color (either black or silver). Hold down the motor assembly and twist the propeller clockwise to unlock it (you should feel some resistance until it starts to unscrew freely).
    • Take note of the propeller cap color (either black or silver).

    • Hold down the motor assembly and twist the propeller clockwise to unlock it (you should feel some resistance until it starts to unscrew freely).

    • Hold down the motor assembly and twist the propeller counterclockwise to unlock it (you should feel some resistance until it starts to unscrew freely).

    • This is the motor assembly.

  3. Ensure that the propeller cap color (black or silver) matches the propeller screw cap color. There are two different types of propellers so make sure you're using the correct one.
    • Ensure that the propeller cap color (black or silver) matches the propeller screw cap color.

    • There are two different types of propellers so make sure you're using the correct one.

  4. If your drone is equipped with it, remove the video transmitter. Disconnect all cables from the gimbal. If your drone has neither the gimbal or video transmitter, you can skip this step.
    • If your drone is equipped with it, remove the video transmitter.

    • Disconnect all cables from the gimbal.

    • If your drone has neither the gimbal or video transmitter, you can skip this step.

  5. Unscrew the 16 mm  screw attaching the gimbal mount to the body of the drone using the 3 mm Hex screwdriver/key. Unscrew the 16 mm  screw attaching the gimbal mount to the body of the drone using the 3 mm Hex screwdriver/key.
    • Unscrew the 16 mm screw attaching the gimbal mount to the body of the drone using the 3 mm Hex screwdriver/key.

  6. Rotate the drone 180 degrees. Unscrew the other 16mm gimbal mount screw using the 3 mm Hex screwdriver/key.
    • Rotate the drone 180 degrees.

    • Unscrew the other 16mm gimbal mount screw using the 3 mm Hex screwdriver/key.

  7. Remove the gimbal mount from the body of the drone.
    • Remove the gimbal mount from the body of the drone.

  8. Remove the eight 11mm screws attaching the underbody of the drone using the 2mm Hex screwdriver/key. Remove the eight 11mm screws attaching the underbody of the drone using the 2mm Hex screwdriver/key.
    • Remove the eight 11mm screws attaching the underbody of the drone using the 2mm Hex screwdriver/key.

  9. Remove the two larger, 12mm screws attached to the Go Pro mount using the 3mm Hex screwdriver/key. Lift to remove the mount. Lift to remove the mount.
    • Remove the two larger, 12mm screws attached to the Go Pro mount using the 3mm Hex screwdriver/key.

    • Lift to remove the mount.

  10. Feed both wires through the grill of the bottom shell. Lift to remove the shell. There are two cables tethering the shell to the body of the drone. It is difficult and unnecessary to remove them. Simply lay the shell to the side.
    • Feed both wires through the grill of the bottom shell.

    • Lift to remove the shell.

    • There are two cables tethering the shell to the body of the drone. It is difficult and unnecessary to remove them. Simply lay the shell to the side.

  11. Ensure that the drone is in the same orientation as the picture (power connector and capacitors on the bottom). Top-left motor power cables
    • Ensure that the drone is in the same orientation as the picture (power connector and capacitors on the bottom).

    • Top-left motor power cables

    • Top-right motor power cables

    • Bottom-left motor power cables

    • Bottom-right motor power cables

    • Desolder the motor power cables closest to the motor that you are replacing (the cables in each corner route to the closest leg).

    • Exercise caution and follow proper desoldering procedures to ensure safety.

  12. On the leg that the motor is attached to, remove the 8mm screw that holds the long leg foot in place using the 1.5 mm Hex screwdriver/key. On the leg that the motor is attached to, remove the 8mm screw that holds the long leg foot in place using the 1.5 mm Hex screwdriver/key.
    • On the leg that the motor is attached to, remove the 8mm screw that holds the long leg foot in place using the 1.5 mm Hex screwdriver/key.

  13. Slide the leg foot out of the leg assembly. Slide the leg foot out of the leg assembly. Slide the leg foot out of the leg assembly.
    • Slide the leg foot out of the leg assembly.

  14. Remove each of the plastic clips holding the motor cables in by snapping them out. Remove the two 9mm screws using a 2 mm Hex screwdriver/key. Once removed, the motor will hang freely from the leg chassis. Remove the LED assembly by snapping it off the clips that are attached to the drone leg.
    • Remove each of the plastic clips holding the motor cables in by snapping them out.

    • Remove the two 9mm screws using a 2 mm Hex screwdriver/key. Once removed, the motor will hang freely from the leg chassis.

    • Remove the LED assembly by snapping it off the clips that are attached to the drone leg.

  15. To remove the motor assembly, pull the motor assembly through and out of the leg chassis.
    • To remove the motor assembly, pull the motor assembly through and out of the leg chassis.

Conclusion

To reassemble your device, follow these instructions in reverse order.

Une autre personne a terminé cette réparation.

Duncan Applegarth

Membre depuis le 10/02/2020

277 Réputation

3 tutoriels rédigés

Équipe

Cal Poly, Team S7-G5, Regan Winter 2020 Membre de l'équipe Cal Poly, Team S7-G5, Regan Winter 2020

CPSU-REGAN-W20S7G5

5 membres

9 tutoriels rédigés

Un commentaire

Thanks for the info Duncan , I am finding it difficult to simply snap off the led clip away from the arm is there a secret? Lol!

Kevin Lewis - Réponse

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