2021/11
7.Maintenance
15
7.
Maintenance
7.1.
GENERAL CONSIDERATIONS
This blender, 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.
All replaced material should be duly disposed of/recycled according to the directives in force in each area.
ALWAYS disconnect the blender before beginning any maintenance work.
7.1.1.
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 section Assembly and Disassembly
from specific instruction’s pump or mixer
.
7.2.
STORAGE
Before storing the blender it should be completely drained. Prevent as far as possible exposing the parts to excessively
humid environments.
7.3.
CLEANING
The use of aggressive cleaning products such as caustic soda and nitric acid may burn the skin.
Use rubber gloves during the cleaning process.
Always use protective goggles.
7.3.1.
CIP (Clean-in-Place) cleaning
If the blender is installed in a system with a CIP process, its removal will not be required. If an automatic
cleaning process is not available, disassemble the blender as indicated in the section
Cleaning solutions for CIP processes.
Only use clear water (chlorine-free) to mix with the cleaning agents:
a) Alkaline solution:
1% by weight of caustic soda (NaOH) at 70ºC (150ºF)
1 kg NaOH + 100 litres of water = cleaning solution
or
2.2 litres of 33% NaOH + 100 litres of water = cleaning solution
b) Acid solution:
0.5% by weight of nitric acid (HNO
3
) at 70ºC (150ºF)
0.7 litres of 53% HNO
3
+ 100 litres of water = cleaning solution
