Mindray WATO EX-55Pro - Remove Bypass Valve and the Trigger Board

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3. Turn the knurled nut counterclockwise to disassemble the drain valve.
9.4.8 Remove Bypass Valve and the Trigger Board
1. Remove the CO2 Bypass assembly as per section 9.4.6.
2. Remove the transfer tube.
Drain Valve Stem Drain Valve Body