6
Pump
Operations
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
lu bri ca tion or other maintenance
is required.
If a seal failure unit is used, no
at ten tion 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 in sur ance against damage
to an expensive motor.
Servicing Instructions:
WARNINg: Before handling
these pumps and controls, always
dis con nect the power first.
Do not smoke or use sparkable
elec tri cal 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
pre cau tions per latest OSHA
require ments; do not enter sump
until these pre cau tions
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 re paired in
an authorized Hydromatic service
center. Charg es 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 bear ings.
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 dis con nect ed before
housing is com plete ly removed.
See sectional drawing.
Pump
Maintenance
Summary of Contents for S4LRC
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