Crane Barnes XSGV 2 HP, Installation Manual

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11
10. Before removing the pump from the basin, be sure to
close the shut-off valve. (This prevents back fl ow from
the pressure sewer.)
11. Make sure level controls are provided at time of
installation.
12. Recommended starts per hour, 6 to 8, no more than
10.
D-3) Start-Up Report:
Included at the end of this manual are two start-up report
sheets, these sheets are 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) Identi fi cation Plate:
Record the numbers from the pump’s identi fi 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 it’s 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 and seal chambers are oil fi lled, no
lubrication or other maintenance is required, and
generally Barnes 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:
1) Test moisture detector control “Test Switch” for
continuity of circuit. - Water in the seal chamber will
energize a seal leak warning light at the control panel.
This is a warning light only and does not stop the
motor. It indicates the seal has leaked and must be
repaired. This should be done as soon as possible to
prevent further damage. See section D-2.3.
2) Inspect impeller and body for excessive build-up or
clogging and repair as required per section F-3.
3) Check motor for ground leakage and proper amp
draw. See section D-3.2.
4) Inspect outer 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 8 & 9 for
2HP and 10 & 11 for 3, 5 & 7.5HP Pumps.
WARNING! - Electrical power to the pump
motors must be disconnected and locked out
to prevent any dangerous electrical hazards
or personnel danger before any service work
is done to the pump.
CAUTION! - operating pump builds
up heat and pressure; allow time for
pump to cool to room temperature
before handling or servicing.
F-1) Motor & Shaft Seal Service
WARNING! - Motor & upper shaft seal repair:
Motor and upper shaft seal must only
be serviced at the BARNES factory. Any
unauthorized
fi eld repair voids warranty.
The XSGV Submersible Pump motor is designed to meet
the requirements for Underwriters Laboratory Class I,
Group D service and must only be serviced as described
above.
F-2) Conduit Box and Cable Assembly:
WARNING ! - The conduit box and cable
assembly should not be
fi eld serviced. If a
problem develops in the power or control
cord the complete pump should be removed
and serviced only by authorized personnel as
described above.
F-3) Impeller, Cutters and Volute Service:
F-3.1) Disassembly and Inspection:
To obtain access to the impeller (13) or shredding ring
(9),
fi rst remove screw (6) and washer (7). Then holding
the motor shaft stationary with a screwdriver, tap the
radial cutter (8) loose in the counter-clockwise direction
and remove, (Heat may be needed to break the screw (6)
loose.)
Next remove nuts (3) and washers (4) from stud (2) and
pull the body (1) and square ring (5) from the rest of the
pump. Remove shims (12) from shaft, then impeller (13)
can be removed by turning it counter-clockwise while
holding stationary the motor shaft with a screwdriver.
NOTE: With the impeller (13) removed, the seal spring is
relaxed and some oil may seep from the seal cavity. DO
NOT store this pump without the impeller (13) in place to
hold the seal shut.