6
Pump
Operations
lights on panel; pumps should
alternate on each successive
cycle of operation.
6. Turn both H-O-A switches
to Auto position and allow
sump to fill to the override
control level.
7. Turn both switches to Auto
position and both pumps
should start and operate
together until level drops to
turn-off point.
8. Repeat this operation cycle
several times before leaving job.
9. Check voltage when pumps
are operating and check the
amp draw of each pump.
Check amps on each wire
as sometimes a high leg
will exist. One leg can be
somewhat higher (5 to 10%)
without causing trouble. For
excessive amp draw on one
leg, the power company should
be consulted.
Phase Converters:
Phase converters are generally
not recommended, but in cases
where only single phase current is
available phase converter can be
used. Be sure to size the phase
converter large enough for the
amp draw specified on the motor
nameplate, not necessarily by
motor horsepower. The warranty
on all three phase submersible
motors is void if operated with
single phase power through a
phase converter and 3 leg ambient
compensated extra-quick trip
overload protectors are not used.
As the motors are oil filled no
lubrication or other maintenance
is required.
If a seal failure unit is used, no
attention is necessary as long as
the seal shows satisfactory operation.
If seal failure is not used, the
pump should be lifted once every
two years and the oil be drained
from the seal chamber to check for
water.
If the pump is used on a
HYDR-O-RAIL system, it should
be lifted once every six months
and checked for corrosion and wear.
Generally these pumps give very
reliable service and can be expected
to operate for years on normal
sewage pumping without failure.
Lightning
In some areas where considerable
lightning occurs, it is recommended
that a lightning arrestor be
installed at the control panel.
Complete data on lightning
arrestors and cost are available
from the factory. Lightning
arrestors are good insurance
against damage to an expensive
motor.
Servicing Instructions:
WARNING: Before handling
these pumps and controls,
always disconnect the power first.
Do not smoke or use sparkable
electrical devices or flames in a
septic (gaseous) or possible
septic sump.
A septic pump condition may
exist and if entry into sump is
necessary, provide proper safety
precautions per latest OSHA
requirements; do not enter sump
until these precautions
are
strictly adhered to.
Failure to heed above cautions
could result in injury or death.
Field Service on Motor:
All S4LRC submersible motors
can be serviced (out of warranty)
in the field by any reliable motor
service shop. Any pump (in
warranty) must be returned to the
factory for service or repaired in
an authorized Hydromatic service
center. Charges will not be
allowed if (in warranty) pump is
taken to a motor repair shop that is
not an authorized Hydromatic
service center.
When field service is performed
on a pump, these instructions
should be carefully followed.
Replacing Stator:
If motor winding is burned or
shorted it can be rewound or
replaced with new factory wound
stator. Refer to sectional drawing
of pump and motor and use the
following steps to remove and
replace stator.
1. If stator only is damaged it
may not be necessary to
completely dismantle pump as
stator and housing can be lifted
from pump without disturbing
seals or bearings.
2. Drain all oil from upper housing,
remove drain plug in bottom of
stator housing and remove
plug in top of housing to allow
air to enter.
3. After chamber is drained,
remove hold-down bolts and
lift off. Use care in lifting as
the seal failure connecting wire
must be disconnected before
housing is completely removed.
See sectional drawing.
Pump
Maintenance
Содержание Hydromatic S4LRC-3450 RPM
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