Hirobo HI0403201 Seesaw Link for GPH 346 Helicopters  [HI0403201]

Seesaw: Role in GPH 346 Linkage

This Hirobo seesaw is an RC-scale linkage component identified by model HI0403201 and matched to the GPH 346 family naming. It is presented as a direct replacement-style seesaw used in helicopter rotor linkages, intended to restore or maintain correct control geometry without implying outside vehicle use.

Practical fit and operation are emphasised: ensure the part lines up with existing pivots, confirm there is no endplay, and check for a smooth sweep through the control arc. Because the seesaw transmits collective and pitch inputs, correct installation is important for predictable tracking and response.

Installation guidance: inspect mating pivots and fasteners for signs of wear before fitting, match link lengths and ball or snap joints to the original layout, and validate full travel and centring after installation. Fine tuning of seesaw position can be used to tweak pitch curves and cyclic balance; proceed incrementally and test after each change.