Design and function
Transport and installation
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099-005670-EW501
7.03.2022
5.1.6.4 Adding coolant
After switching on the machine, the coolant pump runs for a defined time (filling the hose package). If the
machine does not detect sufficient coolant flow during this time, the coolant pump is switched off (protec-
tion against damage caused by dry running). At the same time, the welding data display signals the coo-
lant error. If there is sufficient coolant flow, the coolant pump is switched off before the defined time has
elapsed (operational readiness).
If there is less coolant in the coolant tank than the minimum required you may need to vent the
coolant circuit. In this case the welding machine will automatically shut down the coolant pump
and signal an error,
> see 7.4 chapter
.
The unit is supplied ex works with a minimum level of coolant.
The level of coolant must never fall below the “MIN” mark.
Figure 5-2
Item Symbol Description
0
1
Coolant tank cap
2
Coolant filter sieve
3
Coolant tank
> see 5.1.6 chapter
4
Filling level display
MIN ------ minimum coolant level
MAX ----- maximum coolant level
• Pull off the coolant tank sealing cover.
• Check filter sieve for cleanliness, clean if necessary and reinsert.
• Top up coolant up to the upper filling level gauge "MAX" and push sealing cover back on.
• Switch on the power source at the main switch.
