Barnes 3SE3054DS, Installation And Operation Manual

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7
SECTION: D START-UP OPERATION
D-1) Check Voltage and Phase:
Before operating pump, compare the voltage and phase
information stamped on the pump identi fi 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 NOT 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 CP&S Service Center.
D-3) Identi fi cation Plate:
Record the numbers from the pump identi fi cation plate.
D-3.1) 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.
D-3.2) 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.
SECTION E: PREVENTATIVE MAINTENANCE
As the motor is oil fi lled, no lubrication or other maintenance
is required, and generally CP&S pumps 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:
WARNING! - Pressure builds up due to heat.
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 12 & 13.
F-1) Lubrication:
Anytime the pump is removed from operation, the cooling oil
in the motor housing (2) must be checked visually for oil level
and contamination.
F-1.1) Checking Oil:
Motor Housing
- To check oil, set unit upright. Remove pipe
plug (5) from motor housing (2). With a fl ashlight, visually
inspect the oil in the motor housing (2) 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 just above the motor when pump is in a
vertical position.
F-1.2) Testing Oil:
1. Place pump on it’s side, remove pipe plug (5) from motor
housing (2), and drain oil into a clean, dry container.
2. Check oil for contamination using an oil tester with a
range to 30 Kilovolts breakdown.
3. If oil is found to be clean and uncontaminated (measure
above 15 KV. breakdown), re fi ll the motor housing as per
section F-1.4.
4. If oil is found to be dirty or contaminated (or measures
below 15 KV. breakdown), then the pump must be
carefully inspected for leaks at the shaft seal (38), cable
assemblies (9) and (10), square ring (36) and pipe plug
(5) before re fi lling with oil. To locate the leak, perform a
pressure test as per section F-1.3. After leak is repaired,
re fi ll with new oil as per section F-1.4.
F-1.3) Pressure Test:
Pumps that have had the oil drained from the Motor
Housing -
Apply pipe sealant to pressure gauge assembly
and tighten into pipe plug hole (see Figure 2). Pressurize
motor housing to 10 P.S.I. Use soap solution around the
sealed areas and inspect joints for “air bubbles”. If, after
fi ve minutes, the pressure is still holding constant, and no
“bubbles” are observed, slowly bleed the pressure and
remove the guage assembly. Replace oil as described in
section F-1.4. If the pressure does not hold, then the leak
must be located and repaired.
Pumps that have NOT had the oil drained from the Motor
Housing -
The pressure test may be done with the oil at its
normal level. Remove pipe plug (5) from motor housing (2).
Apply pipe sealant to pressure gauge assembly and tighten
into holes (see Figure 2). Pressurize motor housing to 10
P.S.I. Use soap solution around the sealed areas above the
oil level and inspect joints for “air bubbles”. For sealed areas
below the oil level, leaks will seep oil.
If, after fi ve minutes, the pressure is still holding constant,
and no “bubbles”/oil seepage is observed, slowly bleed the
pressure and remove the gauge assembly. If the pressure
does not hold, then the leak must be located and repaired.