take to authorized service
center for check.
Pump runs but does not
deliver water.
1. Check valve may be installed
backward. Arrow on valve
points in direction of flow.
2. Discharge shutoff valve, if
used, may be closed.
3. Pump may be air locked. Start
and stop several times by
plugging and unplugging cord.
Hydromatic
pumps have
a small air vent hole in
the impeller cavity to let out
trapped air. If this hole
becomes plugged, pump may
air lock. To break the air
lock, use a small screwdriver
to clear hole in the
impeller cavity.
As a secondary precaution in
installations of this type —
1 ⁄ 16" hole should be drilled in
the discharge pipe below the
check valve. The check valve
should be 12 to 18 inches
above pump discharge. Do not
put check valve directly into
pump discharge opening.
NOTE: In sumps where the
pump is operating daily, air
locking rarely occurs.
4. Pump head may be too high.
Pump cannot deliver water
over 24' vertical lift.
Horizontal distance does not
affect pumping, except for
friction loss through the pipe.
5. Inlet in pump base may be
clogged. Remove pump and
clean out openings.
6. Impeller or volute openings
may be plugged or partially
plugged. Remove pump and
clean out.
3
CAUTION: Do not pump
flammable liquids, strong
chemicals or salt water.
13.In applications where the
pump may sit idle for months
at a time, it is recommended
that the pump(s) be cycled
every few months to ensure the
pumping system is working
properly when needed.
14.An audible alarm, such as
the Hydromatic Q-Alert for
high water conditions, should
be installed for additional
protection against high
water conditions.
NOTE: The Q-Alert alarm
panel is for indoor use only.
For applications and product
information, contact your
Hydromatic distributor.
Your pump warranty is void...
If
... power cord has been cut.
If
... pump has been used to
pump mud, cement, tar,
abrasives or chemicals.
If
... pump has been used for
pumping of hot water
(above 120°F).
If
... pump has been dismantled
by other than authorized
Hydromatic service center
or distributor.
Servicing should be performed
only by an authorized
Hydromatic service center.
Pump
Troubleshooting
WARNING: Always disconnect
the pump from power source
before handling or making any
adjustments. Always wear
rubber boots when there is
water on the floor and you must
unplug the pump or make any
adjustments.
NOTE: Automatic thermal
overload protects the sealed-in-
oil motor. Running dry may
overheat the motor and activate
the overload protector until the
unit cools.
Pump does not run or just hums.
1. Line circuit breaker may be
off, or fuse may be blown
or loose.
2. Water level in sump may be
too low to activate automatic
switch. See installation for
proper on/off levels.
3. Pump and/or switch cord plug
may not be making contact
in receptacle.
4. If pump is using the series
(piggyback) cord plug, the two
plugs may not be plugged
together tightly.
5. Float may be stuck. Be sure
float operates freely in basin.
6. If the unit is being operated by
the optional float control
switch, unplug the pump from
the piggyback receptacle and
plug the pump directly into the
power source. If the pump
starts each time it is plugged
directly into the receptacle and
does not start each time when
plugged into the piggyback
switch with the float raised up
to a start position, replace the
complete piggyback switch
assembly and retest with
new assembly.
7. If all symptoms check OK,
motor winding may be open;
Содержание Hydromatic SHEF30
Страница 6: ...6 SHEF30 Typical Installation ...
