Xylem Heavy-Duty Submersible Mixer SR4650.412

Replace the cable if the outer jacket is damaged.

Check that the connections to power are properly tightened.

Ensure electrical cabinets are clean and dry.

Measure resistance between earth (ground) and phase lead. Should be more than 5 megohms.

Conduct a phase-to-phase resistance check.

Ensure the junction box is clean and dry.

Lay the mixer on two supports or suspend the mixer horizontally from an overhead crane.

Place a vessel under the mixer to hold the oil being drained.

Ensure the vessel can hold less than 2 L (2.1 qt) of oil.

Remove the drain plug and the filling plug to facilitate draining.

Re-position the O-ring and the drain plug after draining the oil.

Tighten the drain plug to a torque of 10-20 Nm (7.4-14.8 ft-lbs).

Select the mixer working position for oil quantity

Verify power is disconnected to prevent unexpected startup

Remove the inspection screw (marked INSP)

Remove the screw inside to access the stator housing

Disconnect and lock out power before servicing

Is the mixer EN/ATEX or FM-approved?

If EN/ATEX or FM-approved, review specific Ex information before proceeding

Ensure the following requirements are met

Perform general inspection of the mixer

Control wear parts and replace if necessary

Disconnect and lock out power before servicing

Is the mixer EN/ATEX or FM-approved?

If EN/ATEX or FM-approved, consult specific Ex information before proceeding

Ensure the following requirements are met

Inspect the mixer for patina and other signs of wear

Record any unusual findings or conditions