Three Phase Pumps - Liberty Pumps Omnivore LSG200-E Serie Manual Del Usuario

 Pump runs or hums
but does not pump
 Water is present
inside motor housing
 Pump does not turn
off
 Poor grinding
performance
 Low pumping
performance
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 Discharge is blocked
or restricted
 Check valve is stuck
closed or installed
incorrectly
 Pump is air-locked
 Pump impeller/cutter is
jammed
 Max. lift height (Head)
has been exceeded
(see Fig. E)
 Pump seals have been
compromised
 Defective float or build-
up on surroundings is
restricting free
movement of the float.
 Control panel failure
 Low Voltage
 THREE PHASE
PUMPS ONLY:
Pump is rotating in
reverse.
 Large Grinder Cutter
Gap
 Impeller wear
 Pump is rotating in
reverse.
 Check the discharge line for blockage or
for ice if the line passes through or into
cold areas.
 If check valve is present, remove and
inspect for freedom of operation and
proper installation.
 Remove the pump and inspect the anti-
airlock hole. Remove any debris or rust
that may be blocking the hole. Verify
that the pump turn off level has not
changed from its factory specified
setting.
 With the pump de-energized, inspect
bottom of pump for foreign material
blocking the impeller or cutter. If no
blockage is found, try rotating the cutter
using a hex key and the cutter bolt. If
the cutter will not rotate, consult Liberty
Pumps for further instruction.
 Attempt to re-route piping to a lower
elevation. If this is not possible, a larger
pump may need to be installed.
 Consult Liberty Pumps.
 Check that the float is free to move. If
build-up restricts float, clean and
reinstall. Otherwise, consult Liberty
Pumps.
 Have an electrician inspect/evaluate
control panel. Consult control panel
manufacturer for further assistance.
 Have electrician check wiring for proper
capacity and measure voltage while
pump is in operation.
 Place pump on ground and inspect
rotation while pump is operating. If
rotation is reversed, have an electrician
interchange two of the power leads in
the control panel.
 Consult Liberty Pumps for further
troubleshooting and assistance.
 Consult Liberty Pumps for additional
troubleshooting and replacement parts.
 THREE PHASE PUMPS: Place pump
on ground and inspect rotation while
pump is operating. If rotation is
reversed, have an electrician
interchange two of the power leads in
the control panel.
 SINGLE PHASE PUMPS: Contact
Liberty Pumps immediately. Do not
switch power leads or continue to
operate the pump.
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