Hirobo HI0403217 GPH 346 Slide Block  [HI0403217]

GPH 346 slide block

This slide block is an RC-scale replacement component listed under the GPH 346 parts family, supplied as HI0403217 by Hirobo. It serves as a direct service item for assemblies using the GPH 346 slide arrangement, and should be treated as a like-for-like maintenance part rather than an upgrade component.

Installation is straightforward for experienced model technicians: remove the worn slide block from the slide rail or linkage assembly, inspect mating surfaces and fasteners for wear, then fit the replacement ensuring the sliding path remains free of debris. Verify smooth travel and correct alignment before flight tests.

In setup and tuning the slide block affects linkage freedom and repeatability of control inputs, so replacing a degraded block can reduce play and restore predictable response. Regular inspection during maintenance cycles helps keep control linkages consistent.