Xylem Heavy-Duty Submersible Mixer SR4650.512

Disconnect and lock out power before servicing

Ensure only certified electricians and Xylem-authorized mechanics perform maintenance on EN/ATEX or FM-approved mixers

Verify the following requirements are met

Conduct a check-up by an authorized Xylem service representative

Document findings and determine intervals for periodical inspection and major overhaul

Check the stator housing for any leakage, and drain if necessary.

Check mechanical seals and O-rings and replace any damaged seals with new ones.

CLS (not for Ex-approved mixers)

Check the oil housing for any leakage.

Check mechanical seals and O-rings and replace any damaged seals with new ones.

Check the coolant level (mixer with cooling jacket).

Check the connections and the electrical motor.

Verify power is disconnected to prevent unexpected startup

Remove the inspection screw (marked INSP)

Remove the screw inside to access the stator housing

Reinstall the inspection screws

Check if the outer jacket of the cable is damaged and replace if necessary.

Ensure cables do not have any sharp bends and are not pinched.

Check that the connections to power are properly tightened.

Ensure electrical cabinets are clean and dry.

Measure resistance between earth (ground) and phase lead using a megger (max 1000 V).

Is the resistance more than 5 megohms?

Conduct a phase-to-phase resistance check.

Disconnect and lock out power before servicing

Ensure only certified electricians and Xylem-authorized mechanics perform maintenance on EN/ATEX or FM-approved mixers

Verify the following requirements are met

Perform general inspection of the mixer

Control and replace wear parts as necessary

Inspect and control zinc-anodes