Design and function
Welding torch cooling system
099-005224-EW501
08.11.2011
29
5.6
Welding torch cooling system
NOTE
Only with water-cooled welding machines!
5.6.1
General
CAUTION
Coolant mixtures!
Mixtures with other liquids or the use of unsuitable coolants result in material damage
and renders the manufacturer's warranty void!
• Only use the coolant described in this manual (overview of coolants).
• Do not mix different coolants.
• When changing the coolant, the entire volume of liquid must be changed.
Insufficient frost protection in the welding torch coolant!
Depending on the ambient conditions, different liquids are used for cooling the welding
torch (see overview of coolants).
Coolants with frost protection (KF 37E or KF 23E) must be checked regularly to ensure
that the frost protection is adequate to prevent damage to the machine or the accessory
components.
• The coolant must be checked for adequate frost protection with the TYP 1 frost protection
tester (see accessories).
• Replace coolant as necessary if frost protection is inadequate!
NOTE
The disposal of coolant must be carried out according to official regulations and
observing the relevant safety data sheets (German waste code number: 70104)!
• Coolant must not be disposed of together with household waste.
• Coolant must not be discharged into the sewerage system.
• Recommended cleaning agent: water, if necessary with cleaning agent added.
5.6.2
List of coolants
The following coolants may be used (for item nos., please see the Accessories chapter):
Coolant Temperature
range
KF 23E (Standard)
-10 °C to +40 °C
KF 37E
-20 °C to +10 °C
DKF 23E (for plasma machines)
0 °C to +40 °C
