GPH 346 Throttle Lever Collar Replacement - HI0403231 Hirobo  [HI0403231]

GPH 346 throttle lever collar — replacement part

This carburettor lever collar from Hirobo is offered as an RC replacement for the GPH 346 helicopter linkage. It operates as a precise interface on the throttle lever, tasked with retaining linkage pins and maintaining stable geometry between the carb lever and the throttle servo.

Intended for a simple swap, the collar helps keep throttle travel and alignment unchanged when replacing a worn unit. Before fitting inspect mating faces for burrs or damage, clean them, then press the collar home or secure it following the model's original hardware approach.

In tuning scenarios the collar reduces slack in the throttle linkage so that idle and mid-throttle adjustments remain repeatable. After fitting carry out basic checks such as confirming neutral and travel at the transmitter, then perform a bench idle test prior to flying.