8 | EN
Copyright © Liberty Pumps, Inc. 2022 All rights reserved.
5595000B
Starting System
1.
Double check all wire connections.
2.
Turn pump(s) to OFF position on H-O-A switch.
3.
Turn on breakers.
4.
Test each pump separately in Hand mode and observe
operation. If 3-phase pump is noisy or vibrates, rotation is
3-Phase Pump Rotation Verification
5.
Set H-O-A switch(es) to AUTO position and allow water to rise
in basin until one pump starts. Allow pump to operate until
the level drops to turn-off point.
6.
Allow basin level to rise to start other pump(s). Notice run
lights in panel. Pumps should alternate on each successive
cycle of operation.
7.
Turn H-O-A switch(es) to OFF position and allow basin to fill
to the override (alarm) control level(s).
8.
Observe all floats in operation to verify that there is adequate
clearance to the surrounds to ensure that the floats do not
have the opportunity to get hung up in their travel.
9.
Verify alarm system response.
10.
Turn switch(es) to AUTO position; pumps should start and
operate together until level drops to turn-off point.
11.
Repeat this operation and cycle several times before leaving
the site.
12.
Check voltage when pumps are operating and record the
amp draw of each pump. Check amps on each wire as
sometimes a high leg will exist. For excessive voltage on one
leg, the electric utility company shall be consulted.
13.
Complete Startup Report.
Be certain to complete adequate testing, especially on systems
with multiple pumps or custom control configurations.
Ma intena nce a nd Troubleshooting
Accidental contact with electrically live parts, items, fluid, or
water can cause serious injury or death.
Always disconnect pump(s) from power source(s) before
handling or making any adjustments to either the pump(s),
the pump system, or the control panel.
Wear adequate Personal Protective Equipment when working
on pumps or piping that have been exposed to wastewater.
Sump and sewage pumps often handle materials that can
transmit illness or disease upon contact with skin and other
tissues.
Do not enter a pump basin after it has been used. Sewage and
effluent can emit several gases that are poisonous.
Verify correct 3-phase pump rotation before returning to
service.
Maintenance
As the motor is oil-filled, no lubrication or other maintenance is
required.
To keep the pump/pump system operating smoothly, perform the
following routine checks. Severe operating environments will
require more frequent checks. For any issues that are not
resolvable, contact Liberty Pumps for further assistance.
Monthly
1.
Pumps that are idle for more than a month in a dry basin
should have impellers manually operated through the breaker
panel monthly to lubricate the seals.
Limit the lubrication run
time to less than one minute per pump.
2.
Pumps that are idle in a wet basin must be removed—
do not
store pump in wet basin.
Quarterly
1.
Check pumps for corrosion and wear.
2.
Check for free and unobstructed float switch operation and
float switch condition.
3.
Inspect for proper check valve operation.
4.
For multiple pumps, check for balanced operating times.
Uneven times indicate a defective unit, float switch or control.
5.
Inspect the control panel for any presence of moisture in
enclosure, loose connections, and general component
condition.
Annually
1.
Basin should be inspected and cleaned. Replace any defective
components.
Troubleshooting
Refer to Table
2 for troubleshooting guidance.
No repair work shall be carried out during the warranty period
without prior factory approval. To do so may void the warranty.
Liberty Pumps, Inc. assumes no responsibility for damage or injury
due to disassembly in the field. Disassembly, other than an
authorized motor enclosure repair facility approved by Liberty
Pumps or its authorized service centers, automatically voids
warranty.
RISK OF ELECTRIC SHOCK
RISK OF SERIOUS INJURY OR DEATH
