This Hirobo collective pitch lever C is supplied as a service replacement for the compatible Hirobo helicopter series shown in the listing. The part functions as the transfer point in the collective pitch linkage, conveying motion from the swashplate and linkage to the rotor blade pitch control.
Replace the lever when it shows wear or after damage, or whenever head adjustments are required. Installation will normally involve partial disassembly of the rotor head, ensuring the collective linkage is routed correctly and confirming pitch travel before flight testing. Verify there is no binding and that movement is free through the full range.
Tuning tip: restore neutral pitch with servos centered, validate transmitter travel and servo endpoints, and apply small trim changes while observing cyclic and collective response. Keep throttle conservative on the first hover following maintenance.
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