Samson 42-36 E Mounting And Operating Instructions

Also see for 42-36 E: Mounting and operating instructions

9-8 EB 3018 ENServicing9.3.3 Replacing the actuator'soperating diaphragmDo not exchange the operating diaphragmin an FDA-compliant regulator version.SAMSON's After-sales Service can supportyou to perform such service work.The associated order number is written onthe actual operating diaphragm.Î See Fig. 9-1 and Fig. 9-2Removing the operating diaphragm1. Put the regulator out of operation (seethe 'Decommissioning' section).2. Unscrew the control line (18) at the con-trol line connection (19).3. Unscrew the coupling nut (11) of the dia-phragm actuator from the valve. Removethe actuator.4. Clamp the coupling nut (11) into a suit-able fixture.5. Unscrew nuts and bolts (15) from the ac-tuator. Remove the actuator case.6. Unscrew the diaphragm plate nut (17)and remove the operating diaphragm(12) from the diaphragm plate (16).NOTICE!TipMounting the operating diaphragm1. Place a new operating diaphragm (12)onto the diaphragm plate (16) (ensuringthe pressurized side is facing in the cor-rect direction) and tighten the diaphragmplate nut (17). Observe the specifiedtightening torques (see 'Tighteningtorques' in Annex).2. Place on the actuator case.3. Insert nuts and bolts (15) and tightengradually in a crisscross pattern. Ob-serve the specified tightening torques(see 'Tightening torques' in Annex).4. Place the diaphragm actuator on thevalve and fasten tight the coupling nut(11). Observe the specified tighteningtorques (see 'Tightening torques' in An-nex).5. Screw the control line (18) to the controlline connection (19) on the valve and ac-tuator. Observe the specified tighteningtorques (see 'Tightening torques' in An-nex).6. Put the regulator back into operation (seethe 'Start-up' section).