This slide block is an RC-scale replacement part in the GPH 346 family, supplied as HI0403217 by Hirobo. It serves as a direct service item for assemblies using the GPH 346 sliding arrangement and is intended for maintenance, not as an aftermarket performance upgrade.
Fitting is straightforward for those experienced with model assembly: remove the old block from its slide rail or linkage, inspect mating surfaces and fixings for wear, then fit the replacement ensuring the sliding route is clean. Verify smooth movement and correct alignment before conducting any flight trials.
When setting up and tuning, the slide block plays a role in linkage freedom and the repeatability of control inputs; replacing a worn block reduces play and restores a predictable response. Include regular inspection of the block in your maintenance routine to ensure consistent operation.
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