EWM WEGA 451 - Workpiece Lead Connection; Welding Torch and Workpiece Line Connection

Commissioning
Workpiece lead, general
Item No.: 099-004934-EWM01 53
6.7 Workpiece lead, general
CAUTION
Risk of burns due to incorrect connection of the workpiece lead!
Paint, rust and dirt on the connection restrict the power flow and may lead to stray
welding currents.
Stray welding currents may cause fires and injuries!
• Clean the connections!
• Fix the workpiece lead securely!
• Do not use structural parts of the workpiece as a return lead for the welding current!
• Take care to ensure faultless power connections!
6.8 Welding torch and workpiece line connection
Depending on the wire electrode diameter and wire electrode type, either a spiral guide or a
plastic core with the appropriate interior diameter must be inserted into the welding torch!
Recommendation:
• Use a spiral guide for welding hard wire electrodes (steel).
• Use a plastic core for welding or brazing soft wire electrodes.
NOTE
Fault with the wire guide!
On delivery, the central connector (Euro) is fitted with a capillary tube for welding torches
with spiral guides. Conversion is necessary if a welding torch with a plastic core is used!
Welding torch with plastic core:
• use with guide tube!
Welding torch with spiral guide:
• use with capillary tube!
Preparation for connecting welding torches with a plastic core:
• Push forward the capillary tube on the wire feed side in the direction of the central connector and
remove it there.
• Slide plastic core guide tube off the central connector.
• Carefully insert the central plug for the welding torch, with the still oversized plastic core, into the
central connector and screw together with crown nut.
• Use a suitable tool to cut off the plastic core just before the wire feed roller, making sure not to pinch it.
• Unfasten and remove the central plug on the welding torch.
• Cleanly remove the burr from the separated end of the plastic core!
Preparation for connecting welding torches with a spiral guide:
• Check that the capillary tube is correctly positioned in relation to the central connector!