Mercury Optimax 115, 135, 150, 175, DFI year 2000 and up service manual., Page 370Get this manual
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POWER TRIMDESIGN I
Power Trim Specifications
POWER TRIM Design (Showa) Trim "UP" Trim "DOWN" Leak Down DesignII 1300 PSI (91kgcm2) Maximum Pressure 500 PSI (35kgcm2) Minimum Pressur