Changing The Liner; Water Cooled Welding Torch - Engmar FL150A Guía De Usuario

- In order to avoid leakage, check the connectors and connecting hoses. Avoid undue torsion
and traction on the torch.
- Depending on the wire quality, remove any abraded wire and change the liner regularly.
Only use original spare parts and components from ENGMAR!
Check the wire feeder, the power supply and the cooler and refer to the operation manual of
those devises for further information. For the air cooled extraction torches of ENGMAR, check
the leather protection before welding. Never use air cooled extraction torches in case of any
deterioration of their leather protection!
1. Extend the torch, making sure the harness is perfectly straight.
2. Loosen the sheath locking plug on the European connector with pliers.
3. Remove the old sheath and clean the circuit with a blow gun.
4. Insert the new sheath preferably with the help of an ENGMAR nozzle which facilitates the
passage of the sheath in the gooseneck. Once the sheath has been passed through, cut
the sheath turns so as to leave about 2 cm of the gooseneck to compress the wire guide
sheath in the torch by screwing the diffuser back onto the gooseneck.
5. Tighten the diffuser preferably with the ENGMAR squaring tool.
6. Tighten the locking cap on the connector and adjust the length of the emerging sheath
so that the end of the sheath is as close as possible to the wire feeder of the welding
generator.
Thermodynamic equilibrium is set up between the welding torch and the cooling system.
The heat absorbed by the torch head (depending on welding current) is transported by the
cooling liquid to the cooler.
In case of malfunction, overheat may occur and deteriorate the welding torch.
The maximum permissible welding currents given in the paragraph "technical data" are
applicable under the following conditions:
Direct coupling via the supply line to the cooling system
Welding torch length of 4m
An efficient cooling system with clean cooling fins and filters
Ambient temperature of 20°C (68°F)
Check the filling level of the cooling system and replenish the coolant if necessary.
Check the cooling circuits for leaking regularly. Always prevent coolant liquid from entering
the wire guide ! Water leaking can adversely affect the quality of welding.
6 . M A I N T E N A N C E
W A T E R C O O L E D W E L D I N G T O R C H
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C H A N G I N G T H E L I N E R