Liberty Pumps Omnivore LSG202-RE User manual

Installation Manual 5672000E
Omnivore Grinder Pump Retrofit Unit
FOR E-ONE* GP200, GP2000 AND EXTREME SERIES
Models to replace GP200 and GP2000:
LSG202-RE 2Hp, 208/230V, 1 phase, Automatic
LSGX202-RE 2Hp, 208-230V, 1 phase, Automatic
Models to replace the Extreme:
LSG202-REX 2Hp, 208/230V, 1 phase, Automatic
LSGX202-REX 2Hp, 208-230V, 1 phase, Automatic
*Do not throw away or lose this manual. Keep it with the
installation and refer to it often.
* E-One is a registered Trademark of Environment One Corporation and is not affiliated with Liberty Pumps.
7000 Apple Tree Avenue
Bergen, NY 14416
Phone: [phone]
Fax: [phone]
www.libertypumps.com
MODEL _____________________
SERIAL _____________________
CODE _____________________
INSTALLATION
DATE
_____________________
Prior to installation, record Model, Serial
Number, and Code Number from pump
nameplate for future reference.
IMPORTANT:
©Copyright 2010 Liberty Pumps Inc. All rights reserved - 1 -

©Copyright 2010 Liberty Pumps Inc. All rights reserved - 2 -
TABLE OF CONTENTS
SECTION 1 GENERAL INFORMATION------------------------------------------------------------------------------ 3
SECTION 2 INTRODUCTION-------------------------------------------------------------------------------------------- 4
SECTION 3 INSTALLATION ------------------------------------------------------------------------------------------- 4-6
SECTION 4 OPERATION -------------------------------------------------------------------------------------------------7
TROUBLESHOOTING CHART ------------------------------------------------------------------------ 9
PANEL INSTALLATION SHEET----------------------------------------------------------------------- 10
SECTION 5 WARRANTY INFORMATION--------------------------------------------------------------------------- 11

©Copyright 2010 Liberty Pumps Inc. All rights reserved - 3 -
Before installation, read the following instructions carefully. Each Liberty pump is individually factory tested to ensure proper
performance. Closely following these instructions will eliminate potential operating problems, assuring years of trouble-free service.
1. General Information –All Models
Model HP Volts Phase Full Load
Amps FNPT Discharge Automatic or Manual*
LSG202-RE 2 208\230 1 15 1.25” Automatic
LSGX202-RE 2 208-230 1 15 1.25” Automatic
LSG202-REX 2 208\230 1 15 1.25” Automatic
LSGX202-REX 2 208-230 1 15 1.25” Automatic
Risk of electric shock.
Note: Make sure the electrical specifications of the control selected properly match the electrical specifications of the
pump. Always refer to control panel instructions for proper installation. A separate branch circuit is recommended. It must
be sized in accordance with the National electric code for the current shown on the pump nameplate and literature.
Risk of electric shock. Always disconnect the pump from the power source before handling or making adjustments.
The electrical connections and wiring for a pump installation should only be made by qualified personnel.
This pump is supplied with a grounding conductor and grounding-type attachment plug. To reduce the risk of electric
shock, be certain that it is connected only to a properly grounded, grounding-type receptacle.
DO NOT bypass grounding wires or remove ground prong from attachment plugs.
DO NOT use an extension cord.
This pump requires a separate, properly fused and grounded branch circuit. Make sure the power source is properly
sized for the voltage and amperage requirements of the pump, as noted on the nameplate.
The electrical outlet shall be within the length limitations of the pump power cord, and at least 4 feet above floor level
to minimize possible hazards from flood conditions.
The installation must be in accordance with the National Electric Code, Uniform Plumbing Code, International
Plumbing Code, as well as all applicable local codes and ordinances.
Sump and sewage pumps often handle materials which could cause illness or disease. Wear adequate protective
clothing when working on a used pump or piping.
Never enter a pump basin after it has been used. Sewage and effluent can emit several gases which are poisonous.
Keep clear of suction and discharge openings. To prevent injury, never insert fingers into pump while it is plugged in.
DO NOT use this product for flammable or corrosive liquid.
DO NOT use this product in applications where human contact with the pumped fluid is common (such as swimming
pools, fountains, etc.)
NEVER dispose of materials such as paint thinner or other chemicals down drains, as they can chemically attack and
damage pump components, potentially causing product malfunction or failure.
DO NOT use pumps in water over 140F (60C).
DO review applicable codes concerning maximum allowable temperature of water discharged into drain systems.
DO NOT use pumps in mud, sand, cement, oil or chemicals.
DO NOT modify the pump in any way.
DO NOT lift or carry pump by power cord.
DO NOT remove any tags from pump or cords.
If pump is installed during construction before power is available, it must be protected from the environment to prevent
water from entering through the cord plug end, etc.

2. Introduction
2-1 INTRODUCTION
This manual was prepared to assist you in the correct installation, operation, and maintenance of your Liberty Pump. Please
read it completely before installing the pump. Make certain that you are familiar with the contents, and the chapters on
installation and operation are fully understood before running the pump.
Liberty pumps are designed for minimal maintenance. However, regular checks will ensure longer life and greater operating
reliability.
WARRANTY: No repair work should be carried out during the warranty period without prior factory approval. To do so may
render the warranty void.
SERIAL # : In all correspondence and reports, make certain that the pump serial number is given.
2-2.1 DESIGN OF PUMP
The grinder pump contains metal parts that rotate at high speeds. Be careful around pump base
while power is connected. Make sure that the pump is either in the tank or clear from people and wires when in
operation.
1. The Liberty grinder pump is designed for continuous underwater operation. The induction motor is insulated against heat and
moisture in accordance with Class B 265F (130C) regulations.
2. A thermal overload protector is imbedded in the stator windings. This is connected in series and wired to shut down the pump
if overheating occurs. The overload switch resets automatically when the motor cools.
3. The motor is protected against damage from water entry by two seals at the impeller drive. The lower seal is a viton lip seal.
The upper seal is mechanical, consisting of two silicon-carbide faces.
4. The impeller and volute are designed for efficient flow characteristics and clog-free operation. The hardened cutters grind
solids and fibrous matter into small particles that can be safely pumped through small diameter piping.
5. For sewage systems, consult local plumbing codes on requirements of venting the tank. The pump shall not be installed in
locations classified as hazardous in accordance with the National Electrical Code, ANSI/ NFPA70.
NOTE: The major material of Liberty Grinder Pumps is cast iron. They should not be used to pump corrosive liquids.
3-1 INSPECTION UPON RECEIPT
3.Mechanical Installation
The shipping container should be immediately inspected for damage that may have occurred in shipment. Exercise care in
opening the shipping container to avoid damage to the pump. Remove any blocking and cushioning from within the container.
Check all cushioning for spare parts before discarding. Visually check the pump and any spare parts for damage. Check for
damaged electrical wires, especially where they exit the motor housing. Report any damage or shortage of parts. Turn the hex
socket head cap screw at the center of the cutter wheel on the bottom of the grinder several rotations clockwise. This will
insure that the impeller and cutter are free of any seizure due to prolonged storage. If the impeller is not rotated, the pump
may fail to activate. If the impeller’s rotation is difficult or completely resistant, adjustments must be made.
3-2 STORAGE BEFORE USE
Liberty pumps are shipped from the factory ready for installation and use. They should be held in storage if the pump station
is not complete. If storage is necessary, the pump should remain in its shipping container. It should be stored in a warehouse
or storage shed that has a clean, dry temperature-stable area where the pump and its container should be covered to protect it
from water, dirt, dust, etc. The ends of the cables - (plugs) must be protected against moisture.
AT NO TIME SHOULD THE PUMP BE STORED WITHIN AN INCOMPLETE WET PIT. THE PUMP
SHOULD NOT BE PLACED INTO THE PIT UNTIL IT CAN BE FULLY OPERATED.
LONG TERM STORAGE
©Copyright 2010 Liberty Pumps Inc. All rights reserved - 4 -

1. If it is necessary to store a pump for a long period of time, it should be stored indoors in a clean, dry temperature-stable
environment. The pump should be covered to protect it from dust, dirt and water. The plug end of the cable must be
protected against moisture.
2. Do not allow the pump to freeze.
3. Prior to installation, the pump motor should be rotated to ensure the seals and cutters are free spinning.
4. Installed pumps which are idle for long periods of time should be manually operated through the breaker panel once a
month to lubricate the seals. Turn off the breaker, unplug the piggyback switch, and plug the pump directly into the wall
socket. Turn the breaker on for 30 seconds. Turn the breaker off, and then plug the piggyback switch back in. (refer to
Section 4-1)
3-3 PUMP INSTALLATION
Grinder pumps must be installed in a tank that is vented in accordance with local plumbing codes. This pump is not to be
installed in locations classified as hazardous in accordance with the National Electrical Code, ANSI/NFPA 70. Installation
should be at a sufficient depth to ensure that all plumbing is below the frost line.
NEVER LIFT THE PUMP BY PULLING ON THE POWER CORD.
USE THE LIFTING CHAIN OR CABLE ONLY
3-4 OLD PUMP REMOVAL
1. The supply power must be turned off.
2. Liberty Pumps recommends the use of a 30 amp circuit breaker. Check the
electrical panel and replace if necessary.
3. Locate the riser and remove basin lid from current unit.
4. If the basin is flooded, pump it out with separate pump or vacuum. All septage
must be disposed of in accordance with local, state, and national codes.
5. Disconnect the electrical quick disconnect plug which is hanging in the basin if
applicable.
6. Remove bolts securing the current unit if applicable.
7. Close valve on current unit.
8. Secure rope to hooks on cover. Lift the unit out of the basin.
9. Measure the distance from the cover to the base of the discharge elbow.
Record this dimension so that you can set the new one to the same
dimension. See figure (1)
Figure 1
3-5 INSTALLING THE LSG202-RE OR LSGX202-RE
Figure 2
1. Apply Teflon tape to the threads of the pumps discharge pipe.
Assemble the stainless steel elbow onto the discharge pipe. Make
sure that the elbow is assembled on center once tightened.
2. Remove the quick release pin. Adjust the center nut until the elbow
to cover dimension is the same as the old unit, it should be around
12.375”. NOTE: Replace the pin so that the nut cannot vibrate and
loosen. See figure(2).
3. Float switches must be positioned so that they will be free of any
objects in the tank or tank walls. If adjustments are made to either
one make sure that floats will activate. I.e. - Alarm float activates
before hitting top cover.
©Copyright 2010 Liberty Pumps Inc. All rights reserved - 5 -

3-6 FINISHING THE INSTALLATION
1. Make sure that all fittings are tight.
2. Apply gasket tape to the bottom of the cover at the perimeter.
3. Use an awl or similar tool to poke holes through the tape on the cover, allowing access for cover bolts.
4. Lubricate o-rings on the discharge elbow to ease installation of elbow into receiver.
5. Using lifting chain, lower the grinder assembly into the basin. Align the cover tabs to tank slots, and discharge elbow to the
Receiver - ball valve. The unit should come to rest on the tank flange with the discharge elbow fully inserted into the existing
receiver / ball valve.
6. Open the valve so that the handle/ latch encompass the discharge elbow. If problems exist with opening the latch, adjustments
to the nut will have to be made to alter the height of the unit.
7. Install the 6 bolts into the cover.
8.
AFTER THE PUMP IS INSTALLED, THE FOLLOWING ELECTRICAL CHECKS OF SECTION 4 MUST BE PERFORMED.
STEPS TO BE TAKEN BEFORE ENERGIZING
Retighten all field-made connections. Retighten all factory-made connections. These may have loosened due to shipping and
handling vibrations.
Check the security of mounting hardware.
Ensure that no wires or other obstacles are in the way of the pump cutter.
Conduct an electrical insulation resistance test to make sure that the control panel is free from short circuits and ground faults.
This should be done both phase-to-phase and phase-to-ground.
MOTOR OVERLOAD PROTECTION: The pump motor is protected from locked rotor and running overloads by a thermal overload
integrally mounted to the motor. No adjustments are required.
Check to determine that all grounding connections are made properly.
If a panel is used, remove all debris, scrap wire, etc., from the control panel interior before closing the doors. Install covers, close
doors making certain that no wires are pinched and that all enclosure parts are properly aligned and tightened.
Energizing the control panel or breaker for the first time is potentially dangerous. Licensed electrical
personnel should be present when the panel or breaker is energized for the first time. If faults caused by damage or poor
installation practices have not been detected, serious damage can result when power is applied (Refer to section 5).
9. Restore electricity. Fill the basin with water and test the operation of the pump and float. If a problem arises, refer to the
trouble shooting chart on page (8)
10. Once testing is complete, replace the basin lid and lock if applicable.
11. Affix the second nameplate to the control box or panel so the unit can be identified.
Note: Please leave this manual with the equipment owner.
©Copyright 2010 Liberty Pumps Inc. All rights reserved - 6 -

4. Operation
4-1 OPERATION
After the electrical and mechanical installations have been performed, the pump is ready for operation. No operational
procedures are required except to apply rated power to the pump. There are no specific shutdown procedures beyond
disconnecting the power supply.
ALWAYS ENSURE THAT THE PUMP IS FREE OF WIRES OR OTHER OBSTRUCTIONS THAT MAY CAUSE
HARM OR INJURY.
4-2 PERIODIC MAINTENANCE & LUBRICATION
Liberty pumps are designed for long lasting, efficient and reliable service with a minimum of preventive maintenance checks.
These checks are few but will add years of satisfactory service to the life of the pump. Maintenance checks should be
performed at the intervals stated. Severe operating environments will require more frequent checks.
4-3 LUBRICATION
Ball Bearings: None required
Mechanical Seal: Lubricated by the motor oil
Seal Oil: 32W HIGH Detergent Oil Qty: .7 Gal
NEVER LIFT THE PUMP BY PULLING ON THE POWER CORD. USE THE LIFTING “ROPE” ONLY.
©Copyright 2010 Liberty Pumps Inc. All rights reserved - 7 -

PERFORMANCE CURVE
Omnivore Grinders
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
0 5 10 15 20 25 30 35 40 45 50 55
FlOW (GPM)
HEAD (FEET)
0.0
4.3
8.7
13.0
17.3
21.6
26.0
30.3
34.6
39.0
43.3
47.6
51.9
56.3
60.6
64.9
69.3
73.6
77.9
82.3
86.6
0 5 10 15 20 25 30 35 40 45 50 55
HEAD (PSI)
1-1/4" PIPE
1-1/2" PIPE
2" PIPE
LSGX-SERIES
LSG-SERIES
In order to ensure sufficient fluid velocit
y
to carry solids, (generally accepted to
be 2 feet per second)
Maximum Total Dynamic Head
is dependent on friction factors
of the piping system. Consult
factory for proper pump sizing.
1-800-543-2550
©Copyright 2010 Liberty Pumps Inc. All rights reserved - 8 -

TROUBLESHOOTING CHART
SYMPTOM POSSIBLE CAUSE ACTION
1. PUMP WILL NOT START A. Power supply failure A. Check power supply
Check out electrical system
for loose connections
Check operating voltage
B. Burned out fuse or tripped
circuit breaker
B. Check circuit protectors
C. Damaged power cable C. Check external cable for
damage – replace
D. Jammed impeller D. Inspect and remove jamming
object
E. Water inside motor E. Refer to Symptom 5 and 6
2. REPEATED TRIPPING A. Circuit protection under-rated A. Check rating and replace with
proper size
©Copyright 2010 Liberty Pumps Inc. All rights reserved - 9 -
B. Current unbalance B. Check current draw
C. Pump connected to incorrect
voltage
C. Verify connections. See wiring
diagram
D. Wet or damaged wiring D. Inspect external cable,
replace if worn or damaged
E. Obstruction in pump E. Remove obstruction
F. Incorrect motor rotation F. Check rotation
G. Foreign matter build-up G. Clean motor housing
3. PUMP WILL NOT SHUT
OFF
A. Control panel failure A. Check control panel
B. Switch Failure B. Replace the switch
4. LOW FLOW A. Incorrect pump rotation A. Check rotation
B. Low liquid level B. Check liquid level
C. Obstruction in pump or piping C. Remove obstruction
D. Partially closed valve(s) D. Check and adjust valve
5. WATER IN OIL
CHAMBER
A. Loose or damaged oil plug A. Check plug and sealing
washer
6. WATER INSIDE MOTOR
CASING
A. Damaged lower lip seal or
mechanical seal
A. Replace seal
B. Damaged O-Ring between oil
chamber and motor plate
B. Replace O-Ring
C. Damaged cable C. Replace cable
IF SYMPTOMS CONTINUE, CONSULT THE LIBERTY PUMPS PRODUCT SERVICE DEPT.

©Copyright 2010 Liberty Pumps Inc. All rights reserved - 10
-
ILLUSTRATION 2 CONTROL PANEL INSTALLATION

©Copyright 2010 Liberty Pumps Inc. All rights reserved - 11
-
5.
NOTE: Liberty Pumps, Inc. assumes no responsibility for damage or injury due to disassembly in the field.
Disassembly, other than at Liberty Pumps or its authorized service centers, automatically voids warranty.
Liberty Pumps, Inc. warrants that pumps of its manufacture are free from all factory defects in material and workmanship
for a period of 2 years from the date of purchase. The date of purchase shall be determined by a dated sales receipt
noting the model and serial number of the pump. The dated sales receipt must accompany the returned pump if the date
of return is more than 2 years from the "CODE" (date of manufacture) number noted on the pump nameplate.
The manufacturer's obligation under this Warranty shall be limited to the repair or replacement of any parts found by the
manufacturer to be defective, provided the part or assembly is returned freight prepaid to the manufacturer or its
authorized service center, and provided that none of the following warranty-voiding characteristics are evident.
The manufacturer shall not be liable under this Warranty if the product has not been properly installed; if it has been
disassembled, modified, abused or tampered with; if the electrical cord has been cut, damaged or spliced; if the pump
discharge has been reduced in size; if the pump has been used in water temperatures above the advertised rating, or
water containing sand, lime, cement, gravel or other abrasives; if the product has been used to pump chemicals or
hydrocarbons; if a non-submersible motor has been subjected to excessive moisture; or if the label bearing the serial,
model and code number has been removed. Liberty Pumps, Inc. shall not be liable for any loss, damage or expenses
resulting from installation or use of its products, or for consequential damages, including costs of removal, reinstallation or
transportation.
There is no other express warranty. All implied warranties, including those of merchantability and fitness for a particular
purpose, are limited to two years from the date of purchase.
This Warranty contains the exclusive remedy of the purchaser, and, where permitted, liability for consequential or
incidental damages under any and all warranties are excluded.
7000 Apple Tree Avenue
Bergen, NY 14416
Phone: [phone]
Fax: [phone]
www.libertypumps.com
2 Year Limited Warranty