This Hirobo part is an RC-scale tail pitch lever collar intended for the tail linkage of Eagle Freya helicopters. It provides a locating and retention feature on the pitch lever to preserve correct alignment in the tail control linkage while you work on trimming and servicing.
Fitting is simple on compatible linkages: position the collar on the lever shaft at the selected pitch point, secure with the lever's set screw or existing retention method, and then check that the linkage moves freely through its full travel. Inspect for any side play at the lever and correct alignment faults before flight checks.
In tuning scenarios the collar becomes a dependable stop and reference for consistent tail pitch adjustments, especially useful when replacing older linkage items. Regularly check contact surfaces for wear and swap the collar if it no longer holds a snug fit to preserve precise control.
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