Viking 210GM, 250GM
28
xvii)
Fit the M3 flat washers and M3x10 screws through the meter cover and into the
hexagonal brass spacers.
xviii)
Close wire-feeder compartment or replace side panel.
12. BASIC TROUBLESHOOTING
The basic level of troubleshooting is that which can be performed without special equipment or
knowledge, and without removing the covers from the Power Source / Wirefeeder.
If major components are faulty, then the Power Source / Wirefeeder should be returned to an Accredited
THERMAL DYNAMICS Service Agent for repair.
12.1 Solving Problems Beyond the Welding Terminals
The general approach to fix Gas Metal Arc Welding (GMAW) problems is to start at the wire
spool then work through to the MIG torch. There are two main areas where problems occur with
GMAW:
a)
Porosity
When there is a gas problem the result is usually porosity within the weld metal. Porosity
always stems from some contaminant within the molten weld pool which is in the process of
escaping during solidification of the molten metal.
Contaminants range from no gas around the welding arc to dirt on the work piece surface.
Porosity can be reduced by checking the following points:
1.
Gas cylinder contents and flow meter. - Ensure that the gas cylinder is not empty
and the flow meter is correctly adjusted to
15 litres per minute.
1.
Gas leaks.
- Check for gas leaks between the
regulator/cylinder connection and in the
gas hose to the Power source.
1.
Internal gas hose in the Power source. - Ensure the hose from the solenoid valve to
the Mig torch adaptor has not fractured and
that it is connected to the Mig torch
adaptor.
1.
Welding in a windy environment.
- Shield the weld area from the wind or
increase the gas flow.
1.
Welding dirty, oily, painted, oxidised
or greasy plate.
- Clean contaminates off the plate
1.
Distance between the MIG torch
nozzle and the work piece.
- Keep the distance between the MIG torch
nozzle and the work piece to a minimum.
Refer to section 10.3 on page 24.
1.
Maintain the MIG torch in good
working order.
- Ensure that the gas holes are not blocked
and gas is exiting out of the torch
nozzle.Refer to
WARNING 8
Do not restrict gas flow by allowing spatter
to build up inside the Mig torch nozzle.
Check that the MIG torch O-rings are not
damaged.
Summary of Contents for Viking 210GM
Page 21: ...Viking 210GM 250GM 16 6 WELDING GUIDE VIKING 210GM...
Page 22: ...Viking 210GM 250GM 17 7 WELDING GUIDE VIKING 250GM...
Page 40: ...Viking 210GM 250GM 35 14 VIKING 210GM CIRCUIT DIAGRAM...
Page 41: ...Viking 210GM 250GM 36 15 VIKING 250GM CIRCUIT DIAGRAM...
Page 42: ...Viking 210GM 250GM 37 16 PRINTED CIRCUIT BOARD CIRCUIT DIAGRAM CAT NO 10 6100...
