InstallationOperating_Manual_Fan_KXE_04_en.docx 37 / 128Procedure for assembly of the fan: Mount and level the lower section of the fan Set the rotor down onto the fan lower section and align Seal the partition flange with sealing material Mount the housing upper section carefully, ensuring thatthe sealing material does not shift or sustain damage Align the inlet cone and nozzle with one another andperform an inspection of the gap Observe the minimum gap and check several pointsaround the circumference, refer to chapter 8.2 Checkingthe impeller gap The measured minimum gap between inlet cone andnozzle must be within the range of 3 … 15 mm.Permissible deviations are indicated in the order-relateddrawings Wherever no other order-related minimum gaps arespecified on the separate general drawing for the fan, theaforementioned specification applies for the minimum gap Align the shaft seal centrally to the shaft and screw withthe housing (where featured: remove the transport lockingplates of the shaft seal; transport locking is clearlyidentified with an information plate) If the motor has not yet been fitted:Assemble, align and fit the motor Align the coupling halves with one another in accordancewith the instructions of the manufacturer Fit all protective covers Perform a final inspection for installation and tighten thescrews with the corresponding tightening torque, refer toTable 7-1 Tightening torques7.3.1 Procedure