Fronius MTG 400i K4 Instructions De Service page 28

Safety
Safety
Danger from incorrect operation and work that is not carried out properly.
This can result in serious personal injury and damage to property.
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Danger from electrical current.
This can result in serious personal injury and damage to property.
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Danger from electric current due to defective system components and incor-
rect operation.
This can result in serious personal injury and damage to property.
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Risk of coolant escaping.
This can result in serious personal injury and damage to property.
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Danger due to hot system components and/or equipment.
This can result in serious burns or scalding.
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WARNING!
All the work and functions described in this document must only be carried
out by technically trained and qualified personnel.
Read and understand this document in full.
Read and understand all safety rules and user documentation for this equip-
ment and all system components.
WARNING!
Before starting work, switch off all devices and components involved, and
disconnect them from the grid.
Secure all devices and components involved so they cannot be switched back
on.
WARNING!
All cables, leads, and hosepacks must always be securely connected, unda-
maged, and correctly insulated.
Only use adequately dimensioned cables, leads, and hosepacks.
WARNING!
When disconnecting a welding torch from the cooling unit or other system
components, always seal the coolant hoses using the plastic seal attached to
the torch.
WARNING!
Before starting work, allow all hot system components and/or equipment to
cool to +25°C/+77°F (e.g., coolant, water-cooled system components, wire-
feeder drive motor, etc.).
Wear suitable protective equipment (e.g., heat-resistant gloves, safety gog-
gles, etc.) if cooling down is not possible.