Liquiflo
Installation, Operation & Maintenance Manual
Max
®
Series Sealed Pumps
Models M2 thru M8
5. Maintenance
&
Repair
The pump has internal bearings, wear plates, gears, shafts and a mechanical seal that require replacement
over time due to wear. Standard repair kits are available to facilitate repair of the pump. Repair kits
contain all internal wear parts as well as O-rings, retaining rings, keys, bearing lock pins and housing
alignment pins. O-rings and retaining rings should never be reused when rebuilding the pump.
5.1 Work
Safety
Before performing maintenance, review the Safety Precautions given on Page 4 and pay special
attention to the cautionary statements given in the following sub-sections.
CAUTION! If the pump was used to move 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.
5.2
Removal from System
1
Flush the pump.
CAUTION! Be certain the pump’s motor switch is in the OFF position and
the power to the motor is locked out.
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.
5
Remove any residual liquid remaining in the pump.
7
