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6 Maintenance <br />, 6.5.4 Replacing the Adaptive NTM impeller <br />e 1. Conical sleeve <br />g 2. Impeller screw <br />2 3. Impeller <br />4. Insert ring <br />--` \3 5. Pump housing <br />4 <br />WSOOB398D <br />2 <br />4 <br />co <br />o- - - - i - - - - - - - - - - - - - - ` - - - - - - - <br />1 <br />3 <br />1. Shaft end <br />2. Conical sleeve <br />3. Impeller screw <br />4. Adjusting screw <br />ACAUTION: Cutting Hazard <br />Worn parts can have sharp edges. Wear protective clothing. <br />NOTICE: <br />When laying the pump on its side, do not allow the weight of the pump to rest on any <br />portion of the impeller. The impeller must not be allowed to make contact with the <br />concrete floor or other hard and rough surfaces. <br />6.5.4.1 Prepare the pump for removal: T-, Z-installations <br />The pump must be removed from the installation to change the impeller. <br />1. Close the valves on the inlet and outlet lines. <br />See the following figures. <br />60 Flygt 3102 Installation, Operation, and Maintenance Manual <br />