MMA/TIG
AC/DC
Inverter
200 amp
A professional inverter welder with
HF & lift TIG ignition.
Operating & Safety Guide HW038
Set the AC / DC selector as required. Note that
when AC is selected the current wave balance can
be altered via the balance button.
Fit the regulator to an Argon gas cylinder then
connect the gas hose to the regulator and the gas
inlet at the rear of the unit.
STICK WELDING...
Clip the earth clamp to a patch of clean, bright
metal on the workpiece as close to the weld
as possible.
Holding the welding rod at an angle of 60-70
degrees to the surface, move it towards the work
until you strike an arc.
Keep the arc about 3mm long, work slowly along
the weld in a series of semicircular sweeps across
the line of the joint.
Chip off any slag build-up on the weld before
making a second pass along the joint.
Always begin by making a test weld and adjust the
settings as necessary.
TIG WELDING....
Turn on the Argon gas cylinder and adjust the
regulator until the TIG unit’s float gauge registers a
flow of 8-12 litres per minute when you push the
torch button.
Switch the welder ON and adjust the welding
current to the amperage required.
The torch has a dial fitted, which allows the
operator to adjust the amperage while welding.
To
use this facility, turn the current control mode selector to
the
symbol. The adjuster dial will only decrease the
amperage from the current displayed on the LED, it
cannot increase it.
If the HF setting has been selected, hold the
welding torch at an angle of 60-70 degrees
to the
workpiece and
about 3mm from the surface, then
press the torch control button to strike an arc.
If the Lift TIG setting has been selected hold the
welding torch with the electrode in contact with
the workpiece press the torch control button and
raise the electrode clear of the surface to strike
the arc.
As soon
as a pool of molten metal forms,
simply
move the torch slowly along the joint,
keeping it
at
a constant angle and distance from the surface.
If necessary
feed a length of filler rod into the weld
pool’s leading edge as you go.
BASIC TECHNIQUES
Never push the equipment beyond its design
limits.
If it will not do what you want with reasonable
ease and speed, assume you have the wrong tool for the
job. Contact your local HSS Hire Shop for advice.
The welders electronic system is protected
against damage from overheating.
If overheating
occurs,
the system will shut down the welding
process until it has cooled.
This is indicated by the
amber temperature lamp.
Keep the equipment clean.
You will find this less of a
chore if you clean up regularly rather than wait until the
end of the hire period.
When not in use,
store the equipment somewhere
clean, dry and safe
from thieves.
If TIG welding, replace the gas cylinder as soon as
it runs out.
Simply turn OFF and unscrew the regulator
then remove the old cylinder and fit a new one.
Turn off the gas cylinder if leaving the unit
unattended
to reduce gas loss through leakage.
IF TIG WELDING…
Turned OFF the Argon gas supply at the cylinder,
switch OFF the welder then disconnect the gas
cylinder.
WHATEVER YOU ARE USING…
Leave everything to cool off before removing the
earth-clamp from the work and disconnecting all
of the unit’s welding leads.
Finally, neatly coil all leads and hoses, ready for
return
to your local HSS Hire Shop.
FINISHING OFF
EQUIPMENT CARE
Code 55332/55334
©HSS Hire Service Group Plc 2000 No. HW038/01
Group Office: 25 Willow Lane, Mitcham, Surrey CR4 4TS
Web Site: http://www.hireweld.com
Contact your local
0845 728 2828
…any comments?
If you have any suggestions to enable us to improve
the information within this guide please fax your
comments or write to the Product Manager at the
address below
Fax: 020 8687 5001
HW038/01
