Thread Locker is not needed or recommended for use on the servo output horn screw. As with many plastics, thread locker can damage and weaken the output gear potentially causing a failure. No thread locker is necessary on the output horn screw. If you have any further questions, please contact our product support team for further assistance. You can call us at our toll free number at 877-504-0233 or email at firstname.lastname@example.org.
The DS821 servo is a powerful, accurate sport digital servo recommended for RC airplane applications up to 1.20-size. For helicopters, the DS821 operates best with 30-size glow models, and up to 50-size electric. Loads and vibration in larger models may cause premature failure of the servo resulting in damage or injury to property and persons.