Adding Coolant; Welding Torch Connection - EWM cool82 U44 Operating Instructions Manual

5.3.1

Adding coolant

If the cooling system is empty or only insufficiently filled with coolant, the coolant pump is
automatically switched off after approx. one minute (protection against destruction). At the same
time, the welding data display signals the lack of coolant or low coolant level.
•
Reset the coolant error, fill coolant and repeat the operation.
The unit is supplied ex works with a minimum level of coolant.
Item Symbol
1
2
3
4
•
Unscrew and remove the coolant tank sealing cover.
•
Check filter sieve insert for dirt, clean if necessary and reinsert into position.
•
Top up coolant to the filter sieve insert, close sealing cover again.
The level of coolant must never fall below the "min" mark.
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 7.2 chapter.
5.3.2

Welding torch connection

•
Lock connecting nipples of the cooling water tubes into the corresponding quick connect couplings:
Return line red to quick connect coupling, red (coolant return) and
supply line blue to quick connect coupling, blue (coolant supply).
099-008268-EW501
29.06.2017
Description 0
Coolant tank cap
Coolant filter sieve
Coolant tank
"Min" mark
Minimum coolant level
Design and function
Figure 5-7
Functional characteristics
17