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Liquiflo Installation, Operation & Maintenance Manual
Section 5: Maintenance & Repair
The pump has internal sleeve bearings, wear plates, gears and shafts, which require replacement over time due to
physical wear. The center housing of the pump may also incur internal physical wear and require replacement. The O-
rings and retaining rings should always be replaced when rebuilding the pump.
Standard repair kits are available to facilitate repair of the pump. Repair kits contain the following replacement parts:
Bearings, wear plates, gears, shafts, keys, bearing lock pins, housing alignment pins, O-rings and retaining rings.
5.1
Work Safety
Before performing maintenance, review the Safety Precautions given in Section 2 (see page 7).
Caution!
The Magnetic Couplings used in these pumps contain high strength Samarium
Cobalt magnets. Observe the precautions given in Section 2.2.
5.2
Removal from System
Caution!
If the pump was used with hazardous or toxic fluids, it must be flushed and
decontaminated prior to removal from the system piping. Refer to the Material
Safety Data Sheet (MSDS) for the liquid and follow all prescribed safety
precautions and disposal procedures.
1
Flush the pump.
2
Stop the motor and lock out the electrical panel.
3
Close the suction and discharge isolation valves.
4
Disconnect the pump from the system piping.
There will be some liquid trapped inside the pump's containment can. This liquid can be drained
Note:
after the pump cartridge is separated from the pedestal. (See Section 5.3,
following page.)
Poly-Guard
Models P1 thru P9, Close-Coupled
12
®
Series MAG-DRIVE Gear Pumps
Steps 1
to 3, on
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