Confirm that all grounding connections have been properly made.
7.
When a panel is used, all debris, scrap wire, etc. must be removed from the control panel interior before
8.
closing the doors. When closing doors, make certain that no wires are pinched and that all enclosure parts
are properly aligned and tightened.
Bottom
Fig. D – Proper impeller rotation
5.
Operation & Repair
5-1
OPERATION
After the electrical and mechanical installations have been performed and inspected, 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 other than disconnecting the pump from the power supply.
5-2
PERIODIC MAINTENANCE & LUBRICATION
Liberty pumps are designed for long lasting, efficient and reliable service with minimum 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.
Installed pumps which are idle for long periods of time should be manually operated through the control
panel once a month to lubricate the seals.
Liberty Omnivore Grinder pumps are permanently lubricated and cooled by ISO-10 turbine oil. The oil
volume for LSG models is 3.0 Liters (.8 Gallons) and is 2.7 Liters (.7 Gallons) for LSGX models. Under
normal operating conditions replacement oil is not required, contact Liberty for further instruction if you
believe the oil should be replaced.
When power is first applied to a control panel or
breaker that has a pump installed, serious injury or
damage can occur if there are faults in the pump
from improper installation.
electrician present when the control panel is first
energized.
For 3-phase pumps, check for proper rotation before
installing pump into basin. Failure to check rotation can
result in pump not performing as designed, resulting
pump damage and flooding.
rotation.
To check three phase pumps for proper rotation prior to installation,
restrain the pump before applying power. Turn the power to the on
and off, and observe the pumps rotation.
reverse any two of the three hot leads to the pump. Code the wires
View
for reconnection later.
Before operating pump, remove any nearby debris
including loose wires and other obstructions.
©Copyright 2015 Liberty Pumps Inc. All rights reserved
Have a licensed
See figure D for proper
To change rotation,
13