EBARA Submersible Sewage Pumps
DDLFU/DDLFMU
Instruction Manual
EBARA
Pumps Americas Corporation
www.pumpsebara.com
3
(803) 327-5005 • (803) 327-5097
(fax)
rev. 04/19
Installation
1. Check the following before beginning installation:
Insulation resistance measurement:
(1) For three phase motor:
Excluding the power supply connections, use a meggar to measure the insulation resistance between the ground wire
and each phase of the motor.
Pump Checks
1. Check the following points upon receipt of
your pump:
(1) Check the name plate to confirm that it is the pump
ordered.
(2) Ensure that the pump voltage is the same as the power
at your location.
(3) Check oil level at oil plug.
(4) Check that all plugs and fastening bolts are properly
tightened.
(5) Check that the pump has not been damaged and the
cable glands and cables are in satisfactory condition.
(6) Check accessories and spare parts against the packing
list.
(7) Check that the impeller turns smoothly by hand.
2. Precautions when operation is suspended:
(1) If operation is to be suspended for 30 days with the pump
immersed in water, measure the insulation resistance of
the motor.
If resistance is over 1 mega ohm, operate pump to prevent
rust from developing on moving parts. Follow the instructions
under OPERATION when pump operation is to be resumed.
(2) For dry storage, clean out pump and store in a dry place.
Follow the instructions under INSTALLATION and OPERATION
when pump operation is to be resumed.
WARNING
Before insulation resistance measurement, always disconnect the power first.
All electrical work should be performed by a qualified electrician and all national and local electrical codes must
be observed.
CAUTION
When measuring the insulation resistance with meggar for motor windings do not test overload protection.
MINIATURE THERMAL PROTECTION (MTP) AND LEAKAGE DETECTOR (LD) ARE USED FOR MOTOR PROTECTION.
MTP AND LD CABLES MUST BE INSTALLED IN CONTROL CIRCUIT.
CAUTION
Measure the insulation resistance. The value should be more than 1 mega ohm. While making the measurement, keep the
power supply cable off the ground.