WARNING
Do not connect or disconnect the machine cables whilst welding as this
may cause serious harm to yourself and/or the machine.
7.1 Operation for AC welding
1
Refer to section 5.1 for how to connect torch
2
Switch
MMA/TIG switch
to
TIG
3
Set the
AC/DC switch
to
AC
4
Turn on power switch on the rear of machine (fan will operate
continuously)
5
Turn on shielding gas and regulate gas flow to specified flow rate
6
Select the
AC balance
control based on the degree of cleaning of the
base material that is required
7
The post flow can be regulated by adjusting the
post flow adjustment
8
Press the contactor switch on the welding torch to start up the
electromagnetic valve. The sound of the high frequency spark
discharge in the welding machine will be audible and the shielding
gas will flow
7.2 Operation for DC welding
1
Switch
MMA/TIG switch
to
TIG
2
Set the
AC/DC switch
to
DC
3
Turn on power switch on the rear of machine (fan will operate
continuously)
4
Turn on shielding gas and regulate gas flow to specified flow rate
5
The post flow can be regulated by adjusting the
post flow adjustment
6
Press the contactor switch on the welding torch to start up the
electromagnetic valve. The sound of the high frequency spark
discharge in the welding machine will be audible and the shielding
gas will flow
7.3 Operation for foot control (TIG welding only)
1
Ensure the foot pedal is correctly installed as described in 5.2.
The foot control indicator light will illuminate when the foot pedal
is in use.
2
Switch
MMA/TIG switch
to
TIG
3
Turn on power switch on the rear of machine (fan will operate
continuously)
4
Turn on shielding gas and regulate gas flow to specified flow rate
5
The post flow can be regulated by adjusting the
post flow adjustment
6
Press the foot control pedal to start up the electromagnetic valve. The
sound of the high frequency spark discharge in the welding machine
will be audible and the shielding gas will flow
7
Step on the foot switch for remote control. The minimum and
maximum current can be set by the two dials on the side. These dials
control the percentage of the welding current that has been selected
on the machine. e.g. if you set the current on the machine to 100 and
you turn the ’max’ dial half way then the current will not exceed 50.
7.4 Operation for MMA welding
1
Switch
MMA/TIG switch
to
MMA.
When using MMA function the VRD
light will illumate.
2
Turn on power switch (fan will operate continuously)
3
Select proper
welding current
according to the electrode
manufacturer’s specification
7.0 Smootharc TIG 185 AC/DC operation
25
BOC Smootharc TIG 185 AC/DC Operating Manual
Summary of Contents for Smootharc TIG185 AC/DC
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