Crane Barnes SED Series, Инструкция по установке и эксплуатации

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7
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 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.
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.
SECTION E: PREVENTATIVE MAINTENANCE
As the motor is oil fi lled, no lubrication or other maintenance
is required, and generally 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 inspect seal for wear or
leakage as required per section F-4.
4) Before stopping operation, be sure to keep pumping
supernatent water or clean water for a period of time
to fl ush out accumulated substances from pump.
SECTION F: SERVICE AND REPAIR
NOTE:
All item numbers in ( ) refer to Figures 3 thru 14.
CAUTION ! - Pressure builds up extremely
fast, increase pressure by “TAPPING” air
nozzle. Too much pressure will damage
seal. DO NOT exceed 10 P.S.I.
F-1) Lubrication:
Anytime the pump is removed from operation, the cooling oil
in the motor housing (1) 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 (15) from motor housing (1) With a fl ashlight, visually
inspect the oil in the motor housing (1) to make sure it is
clean, clear, light amber in color and free from suspended
particles. Milky white oil indicates the presence of water.
Oil level should be above motor when pump is in vertical
position.
F-1.2) Testing Oil:
1. Place pump on it’s side, remove pipe plug (15), from motor
housing (1) 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), refi ll the motor housing as per
section F-1.3.
4. If oil is found to be dirty or contaminated (or measures
below 15 KV. breakdown), the the pump must be carefully
inspected for leaks at the shaft seal (3), O-rings (36),
pipe plug (15) before refi lling with oil. To locate the leak,
perform a pressure test as per section F-1.4. After leak is
repaired, refi ll with new oil as per section F-1.3.
TABLE 1 - COOLING OIL - Dielectric
SUPPLIER GRADE
BP Enerpar SE100
Conoco Pale Paraffi n 22
Mobile D.T.E. Oil Light
G & G Oil Circulating 22
Imperial Oil Voltesso-35
Shell Canada Transformer-10
Texaco Diala-Oil-AX
Woco Premium 100
F-1.3) Pressure Test:
Motor Housing
- Before checking the pump for leaks around
the shaft seal, square rings, and cord inlet, the oil level should
be full as described in section F-1.3. Remove pipe plug (15)
from motor housing (1).
Apply pipe sealant to pressure gauge assembly and tighten
into pipe plug hole (see Fig. 2). Pressurize motor housing
to 10 P.S.I. Use a 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 gauge
assembly. Replace the pipe plug using a sealant. If the
pressure does not hold, then the leak must be located.
F-1.4) Replacing Oil:
Motor Housing- Drain all oil from motor housing and dispose
of properly. Refi ll with (see parts list for amount) new cooling
oil as per Table 1. An air space must remain in the top of the
motor housing to compensate for oil expansion (see Cross-
sections Fig. 14). Set unit upright and fi ll only until the motor,
as viewed through the pipe plug opening, is just covered and
no more. Apply pipe thread compound to threads of pipe plug
(15) and install in motor housing (1).
WARNING ! - DO NOT overfi ll oil.
Overfi lling of motor housing with oil can
create excessive and dangerous hydraulic
pressure which can destroy the pump
and create a hazard. Overfi lling oil voids
warranty.