Mody Pumps MSVSS, Operating Instructions - Installation Maintenance

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PUMP HANDLING RECOMMENDATIONS
1. Receiving:
Pump should be inspected for damage upon receiving. If damage has occurred, contact
Mody Pumps Inc. or your authorized distributor to file a claim immediately.
2. Check Insulation and Phase Ohm Resistance:
Before operating pump, ensure the voltage and phase information stamped on Name
Plate matches with the available power.
a. Ohm resistance test: Using a Multimeter, perform a line to line ohm resistance test
on all three phases. For three phase motors, the ohm resistance should show similar
readings.
b. Insulation Resistance Test: Set the Megohmmeter on the insulation mode.
Connect a power lead on the positive side of the meter probe. Connect negative
meter probe to ground and press the test button. The reading must show the values
given in table 1 or greater, to pass the insulation test. Perform the same procedure
for all three power leads connected to the ground cable. Failing of this test indicates
a faulty stator.
c. Megger Test: Set the Meg Meter to Hi-Voltage Test (<1000v). In three phase
pumps short all three power leads, Red/White/Black and connect to Positive (Red
Probe) on Meter and Connect the Green (Ground) Wire to the Black Probe on
Meter. Do not touch the body of Pump - Stand Back and test. A minimum of 500
Meg-Ohms is the desired level.