4
Pump
Operations
5 to 10 per cent without causing
trouble. For excessive amp
draw on one leg, the electric
utility company should be
consulted.
hazardous location the pump must
be returned to the factory for
service. This will ensure the
integrity of the hazardous location
rating of the pump and com
ply
with our warranty re
quire
ments.
Pumps out of warranty and not
used in a hazardous location can
be field serviced by any reputable
serviceman. When any field
servicing is per formed on a pump,
the fol low ing in struc tions should
be followed care ful ly.
Disconnecting Pump Cords:
If a Hydromatic hazardous
location pump is to be removed
from its loca tion, one of two ways
may be used to disconnect the
pump cords from the rest of the
system.
Pump cords may be disconnected
at the control panel (on sump
mounted con trol panels) and cord
as sem bly taken with pump.
CAUTION: If cord openings
from sump to con trol panel are
open, gas
es from sump could
enter panel and an explosive
condition could ex ist.
Pump cords may be disconnected
at pump by removing the cord and
cap assembly, unplugging sensor
wires, and re mov ing wire nuts.
After removal from pump,
reinstall wire nuts in cord and cap
assembly and install protective
cover. (Hydromatic Kit 11456-
000-1)
CAUTION: Do not reconnect
pow er to a cord and cap assembly
while removing from pump.
Replacing Cords:
The power cord and heat
sensor - seal failure cord is potted
into the con
nec
tion box cap,
forming the cord and cap assembly.
If cords require replacement due
to damage or cords being too
short, cord and cap assembly must
be replaced as a complete assembly
avail able from factory.
1. Remove cord and cap assembly
from con nec tion box.
2. Disconnect wires taking note
of color/num ber coding.
3. Connect wires of new cord and
cap as sem bly in same manner
as old one was removed.
4. Check for moisture and dryout.
5. Reinstall cord and cap assembly
on con nec tion box taking care
not to pinch wires.
6.
Check pump for proper
rotation before re
turn
ing to
normal service.
Replacing Stator:
If motor winding is burned or
shorted, it can be rewound or
replaced with new factory wound
sta tor. Refer to sectional drawing
of pump and motor, and use the
following steps to remove and
replace stator.
1. If only the stator is damaged, it
may not be necessary to
com plete ly dismantle pump as
stator and housing can be lifted
from pump without dis turb ing
seals or bearings.
2.
Drain all oil from upper
housing. Remove drain plug in
bottom of bearing housing, and
re move con nec tion box to
allow air to enter.
3. When connection box is lifted
off, con nec tion wires to motor
will be exposed. These
wires are tagged with a metal
marker giving wire num
ber.
As the motors are oil filled, no
lubrication or other main
te
nance
is re quired.
If the heat sensor and seal failure
are hooked up properly, no
attention is necessary as long as
the seal failure indicator light
doesn’t come on. To ensure
continuity of the seal sensor leads,
a test light is provided on
in trin si cal ly
safe
Hydromatic
panels as standard equipment.
Pump should be checked every
quar ter for cor ro sion and wear.
Servicing Instructions:
IMPORTANT: Read all the
directions before replacing
any parts.
WARNING: Before handling
these pumps and controls,
always dis
con
nect the pow
er
first.
Do not smoke or use sparkable
elec tri cal devices or flames in a
septic (gaseous) or possible
septic sump.
Field Service on Hydromatic
Hazardous Location Pumps:
If a Hydromatic hazardous
location pump is used in a
Pump
Maintenance
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