Changing The Cooling Fluid - Zenit UNIQA Manual De Primera Instalación

better together
Enclosure type
M10S - M10L
M12N
M13N
M15N
M17N
M21S - M21L
Zenit recommends:
- CASTROL PRODUCT L 320
- TOTAL Bio Hydraulic TMP FR46
If the recommended oil is not available, contact Zenit.
The quantity of oil required and the pump position for filling are
provided in the table.

7.6 Changing the cooling fluid

Models with cooling jackets use a 30% water and propylene glycol mixture as a coolant, which keeps its characteristics constant to a temperatu-
re of -13°C (9°F).
The mixture needs to be replaced in the following cases:
•
When the mechanical seals are changed (when the sensor sets off the relative signal).
•
Following any repair work that requires the glycols to be drained out.
Procedure to change the cooling liquid
To empty the liquid out of the cooling system, do the following (Fig. 23):
1. Set the electric pump up vertically on a smooth and stable surface;
2. Secure the electric pump by a suitably sized chain or rope hooked onto the top handle, to avoid it from accidentally falling;
3. Set up a suitable tray to collect the coolant liquid contained in the jacket, to avoid uncontrolled spillage into the environment, and make sure
it is disposed of accordingly;
4. Unscrew the top cap;
5. Unscrew the bottom cap, being careful to protect yourself from spillage through the use of personal protection equipment
6. Incline the electric pump until it is completely empty.
1
Mechanical seal sump
oil capacity (ml)
3700
4100
6100
6500
14700
13100
2
3
9. Screw the inner top plug (II) onto the oil sump.
warning!
Use Loctite 243 threadlocker
4
5
23
First installation manual – Translation of original instructions
6
EN
49