Care And Maintenance; General; Recognising Faulty Wearing Parts; Maintenance At Every Start-Up - Fronius MTG 250d Operating Instructions Manual

Care and maintenance

General

Regular preventive maintenance of the welding torch is essential if trouble-free
operation is to be ensured. The welding torch is subjected to high temperatures
and heavy soiling. The welding torch therefore requires more frequent mainten-
ance than other components in the welding system.
Recognising
1.
faulty wearing
parts
1.
2.
3.
4.
5.
Maintenance at -
every start-up
-
56
2.
Insulating parts
- Burned-off outside edges, notches
Nozzle fittings
- Burned-off outside edges, notches
- Heavily covered in welding spatter
Spatter guard
- Burned-off outside edges, notches
Contact tips
- Worn-out (oval) wire entry and wire exit holes
- Heavily covered in welding spatter
- Penetration on the tip of the contact tip
Gas nozzles
- Heavily covered in welding spatter
- Burned-off outside edges
- Notches
Check wearing parts
- replace faulty wearing parts
Remove welding spatter from gas nozzle
CAUTION!
Risk of damage from improper hand-
ling of the welding torch.
This can result in severe damage to
property.
▶
Do not strike the welding torch on
hard objects.
▶
Avoid scoring and scratches on the
contact tip.
▶
Do not bend the torch body under
any circumstances.
3. 4. 5.