Maintenance
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INOXPA S.A.U.
01.020.30.08EN · (0) 2021/04
8. Maintenance
8.1. GENERAL CONSIDERATIONS
This pump, just like any other machine, requires maintenance. The instructions contained in this manual cover
the identification and replacement of spare parts. The instructions are aimed at maintenance personnel and
those responsible for the supply of spare parts.
Carefully read chapter
9. Technical Specifications
Maintenance work can only be carried out by qualified personnel that are trained and equipped
with the necessary resources to carry out this work.
All parts or materials that are replaced must be properly disposed of/recycled in accordance with
the current directives applicable in each area.
ALWAYS disconnect the pump before beginning any maintenance work.
8.2. CHECK THE MECHANICAL SEAL
Periodically check that there are no leaks around the shaft. If leakage is detected through the mechanical seal,
replace it following the instructions in the chapter
8.6. Disassembly and assembly of the pump
8.3. MAINTENANCE OF THE SEALS
SEALS REPLACEMENT
Preventive maintenance
Replace after twelve (12) months. We also recommend replacing the
gaskets during seal or pump shaft replacement.
Maintenance after a leak
Replace at the end of the process. If the impeller nut gasket fails, the
threaded hole on the impeller and the threads on the end shaft have to be
cleaned.
Scheduled maintenance
Regularly check that there are no leaks and that the pump is operating
correctly.
Keep a record of the pump.
Use statistics to plan inspections.
Lubrication
During assembly, use soapy water when fitting the different gaskets to
allow them to slide better.
The period between each preventive maintenance service will vary depending on the operating condition of the
pump: temperatures, flow, number of operating hours, cleaning solutions used, etc.
8.4. TIGHTENING TORQUE
If not stated otherwise, the torques listed in the following table should be applied to the nuts and bolts of this
pump.
Size
Nm
lbf·ft
M6
10
7
M8
21
16
M10
42
31
M12
74
55
M16
112
83
