Attachment 1 - Change Specifications SPMYM326Q4051.pdf

This document contains engineering drawing change instructions applicable to a Housing Assembly component across multiple sheet revisions. The changes address PC3 (Housing Assembly) on various drawing sheets, including SH 2 of 6557947D and SH 3 of both 6557926D and 6557925D.

The modifications encompass ten primary revision categories spanning multiple zones: Zone designations (F6, F3, E3, B5, A5, B3, B4, E8, F7, G5, F5, F4) with specific instructions to delete or update dimensions, datums, and geometric controls. Key changes include deleting reference dimensions (1.90), updating tolerance values (1.25 to 0.756 +/- 0.030), relocating measurement points relative to receptacle threads and body features, removing datum callouts and true position requirements, and modifying parallelism and perpendicularity constraints. Additionally, the instructions specify replacement of basic dimensions and adjustments to tolerance bands (2x 1.90 to 2x 1.406 +/- 0.030) with corresponding datum and measurement point relocations. These engineering modifications standardize dimensional control and geometric tolerancing across the housing assembly drawings, ensuring consistency in manufacturing specifications.