Crane Barnes SE51 Series Installation Manual Download Page 7

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C-4.3) Wire Size:

Consult a qualiﬁ ed electrician for proper wire size if
additional power cable length is required. See table for
electrical information.

SECTION: D START-UP OPERATION
D-1) Check Voltage and Phase:

Before operating pump, compare the voltage and phase
information stamped on the pump identiﬁ cation plate to the
available power.

D-2) Check Pump Rotation:

Before putting pump into service for the ﬁ rst time, the
motor rotation must be checked. Improper motor rotation
can result in poor pump performance and can damage
the motor and/or pump. To check the rotation, suspend
the pump freely, momentarily apply power and observe
the “kickback”. “Kickback” should always be in a counter-
clockwise direction as viewed from the top of the pump
motor housing.

D-2.1) Incorrect Rotation for Three-Phase Pumps:

In the event that the rotation is incorrect for a three-phase
installation, interchange any two power cable leads at the
control box.

DO NO

T change leads in the cable housing

in the motor. Recheck the “kickback” rotation again by
momentarily applying power.

D-2.2) Incorrect Rotation for Single-Phase Pumps:

In the unlikely event that the rotation is incorrect for a single
phase pump, contact a Barnes Service Center.

D-3) Start-Up Report:

Included at the end of this manual is a start-up report sheet,
this sheet is to be completed as applicable. Return one
copy to Barnes and store the second in the control panel
or with the pump manual if no control panel is used. It is
important to record this data at initial start-up since it will be
useful to refer to should servicing the pump be required in
the future.

D-3.1) Identiﬁ cation Plate:

Record the numbers from the pump identiﬁ cation plate
on both START-UP REPORTS provided at the end of the
manual for future reference.

D-3.2) Insulation Test:

Before the pump is put into service, an insulation (megger)
test should be performed on the motor. The resistance
values (ohms) as well as the voltage (volts) and current
(amps) should be recorded on the start-up report.

D-3.3) Pump-Down Test:

After the pump has been properly wired and lowered
into the basin, sump or lift station, it is advisable to check
the system by ﬁ lling with liquid and allowing the pump
to operate through its pumping cycle. The time needed
to empty the system, or pump-down time along with the
volume of water, should be recorded on the start-up report.

SECTION E: PREVENTATIVE MAINTENANCE

As the motor is oil ﬁ lled, no lubrication or other maintenance
is required, and generally Barnes will give very reliable
service and can be expected to operate for years on normal
sewage pumping without failing. However as with any
mechanical piece of equipment a preventive maintenance
program is recommended and suggested to include the
following checks:

1) Inspect motor chamber for oil level and contamination

and repair as required per section F-1.

2) Inspect impeller and body for excessive build-up or

clogging and repair as required per section F-2.

3) Inspect motor and bearings and replace as required

per section F-3.

4) Inspect seal for wear or leakage and repair as required

per section F-4.

SECTION F: SERVICE AND REPAIR
NOTE:

All item numbers in ( ) refer to Figures 10 & 11.

F-1) Lubrication:

Anytime the pump is removed from operation, the cooling
oil in the motor housing (11) should be checked visually for
oil level and contamination.

F-1.1) Checking Oil:

Motor Housing - To check oil, set unit upright. Remove
pipe plug (41) from motor housing (11). With a ﬂ ashlight,
visually inspect the oil in the motor housing (11) to make
sure it is clean and clear, light amber in color and free from
suspended particles. Milky white oil indicates the presence
of water. Oil level should be to the midpoint of capacitor (18)
Fig. 10, when pump is in vertical position.

MODEL NO

VOLT/

RPM

(Nom)

NEMA

START

CODE

FULL

LOAD

AMPS

LOCKED

ROTOR