# VTOL Arm change ## Tools needed - Hex Key 2

## Maintenance supplies needed - Threadlocker (medium strength)

## Preparation 1. Find a flat surface like a table big enough to fit the DeltaQuad Evo's fuselage. 2. Take the fuselage of the DeltaQuad Evo out of the flight case. 3. Remove the hatch, as this gives more stability when the fuselage is lying upside down on the table. 4. Put the fuselage upside down on the table. ## Changing a VTOL Arm 1. To remove the VTOL arm, two screws need to be loosened. To access the screw heads, the landing gear leg must be fully deployed. If the landing gear is retracted, it can be gently deployed manually.

2. Use a size 2 hex key to loosen the two long screws located under the landing gear leg when it is retracted.

3. After removing the two screws, the VTOL arm can be detached. Hold the opposite VTOL arm with one hand for stabilization and pull the lower VTOL arm towards you in a straight line. Avoid wiggling from side to side or up and down.

4. The maintenance kit comes with four VTOL arms: two with clockwise (CW) propeller rotation and two with counter-clockwise (CCW) propeller rotation. Each VTOL arm has an inscription inside its hollow end. The inscription inside the VTOL arm must match the inscription on the respective T-section mount that holds the VTOL arm to the fuselage.

5. Hold the opposite VTOL arm with one hand for stabilization.

6. The T-section mount has an alignment groove for the VTOL arm on each side.

7. Align the VTOL arm so that it catches the alignment groove, then push it forward in a straight line. Avoid wiggling from side to side or up and down.

8. Push until the VTOL arm is fully aligned and set.

9. Apply a small amount of threadlocker to the tip of the screw.

10. Insert and tighten the first screw with moderate force until it is firmly in place. Avoid using excessive force to prevent overtightening and potential damage.

11. Repeat step 9. and 10. for the second screw.

The VTOL arm is now installed. Ensure that it is securely aligned and properly set in place. Double-check that both screws are snug but not overtightened to avoid any damage. Repeat the process for the remaining VTOL arms if necessary. If you should encounter problems during the installation process please contact **** for further assistance. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.deltaquad.com/evo/maintenance/deltaquad-evo-maintenance-kit/vtol-arm-change.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.