Starting System:
1. Turn H-O-A
switch to
off-position then turn on main
circuit breakers.
2. Open all discharge valves
and allow water to rise in
sump pump.
3. Turn H-O-A switch to Hand
position on one pump and
notice operation. If pump is
noisy and vibrates, rotation is
wrong. To change rotation
(3 phase), interchange any two
line leads to motor. DO
NOT INTERCHANGE MAIN
INCOMING LINES. If duplex
system, check second pump in
same manner.
4. Now set both H-O-A switches
to Auto position and allow
water to rise in sump until one
pump starts. Allow pump to
operate until level drops to
turn-off point.
5. Allow sump level to rise to
start other pump. Notice run
lights on panel; pumps should
alternate on each successive
cycle of operation.
6. Turn both H-O-A switches
to off 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. On 3
phase pumps, check amps on
Pump
Operations
each wire as sometimes a high
leg will exist. One leg can be
somewhat higher (5 to 10%)
without causing trouble. For
excessive voltage draw on one
leg, the Power Company
should be consulted.
As the motors are oil filled, no
lubrication or other maintenance
is required. The pump should be
lifted once every two years and
the oil drained from the motor
chamber to check for water.
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 is available
from the factory. Lightning arrestors
are good insurance against
damage to an expensive motor.
Servicing Instructions:
IMPORTANT: Read all
instructions before replacing
any parts.
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.
Field Service On Motor:
All 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 not 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
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. If oil is clean and no
water is present, seals can
be considered satisfactory
to reuse.
3. After chamber is drained,
remove hold down bolts and
lift off. Use care in lifting.
4. Set assembly on bench and
remove cord cap assembly.
When this is lifted off,
connection wires to motor will
be exposed. These wires will
probably be burned but each
wire is tagged with a metal
marker giving wire number.
Cut the wires.
5. If the leads to the cord cap
assembly are burned, the
assembly must be replaced.
Pump
Maintenance
5