22
English
•
It is recommended that the wire coil be removed
during lifting or transportation�
Environment
•
The welding power source is not suitable for use
in rain or snow, although it can be used and stored
outdoors� Protect the equipment against rain and
strong sunlight�
•
Always store the machine in a dry and clean space�
•
Protect the machine from sand and dust during use
and in storage�
•
The recommended operating temperature range
is -20°C to +40°C. The machine's operation efficiency
decreases and it becomes more prone to damage if
used in temperatures in excess of 40°C�
•
Place the machine so that it is not exposed to hot
surfaces, sparks or spatter�
• Make sure the airflow to and from the machine is
unrestricted�
•
Always use the machine in an upright position only�
•
Arc welding equipment always cause electromag-
netic disturbance� To minimize the harmful effects of
this, use the equipment strictly according to the operat-
ing manual and other recommendations�
Gas cylinders and regulators
•
Adhere to the instructions for handling gas cylinders
and regulators�
•
Make sure that gas cylinders are used and stored
in properly ventilated spaces� A leaking gas cylinder
may replace the oxygen in the inhaled air, causing
suffocation�
•
Before use, make sure that the gas cylinder contains
gas suitable for the intended purpose�
• Always fix the gas cylinder securely in an upright
position, against a cylinder wall rack or purpose-made
cylinder cart�
• Never move a gas cylinder when the flow adjuster
is in place� Put the valve cover in place during
transportation�
•
Close the cylinder valve after use�
Circuit diagram and spare part lists
If the circuit diagram and the spare parts list are not
included in your delivery package, please request
them from your local
DWT
service representative� For
more information, please visit
www.dwt-pt.com
�
Disclaimer
While every effort has been made to ensure that the
information contained in this guide is accurate and
complete, no liability can be accepted for any errors
or omissions�
DWT
reserves the right to change the
specification of the product described at any time
without prior notice�
Safety guidelines during
machine operation
The operator or the machine's owner
shall be liable for the possible accidents
or damage that can be caused to the third
persons or their property.
Before starting the work
•
Any operation of the machine with the damaged
or dismantled safety guards is prohibited� Never
operate the machine that is not properly assembled or
underwent the unapproved changes�
•
The power network to which the machine is
connected must be equipped with safety devices or
the automatic circuit-breaker designed for current and
voltage matching the machine specifications.
•
The machine must be connected to the working
ground loop�
•
The machine must be used in a vertical position
only - it must always rest on the rubber foots� Do not
put it down, suspend or put on end-faces�
•
The machine is intended for continuous unattended
operation� Ensure that the machine is mounted far
from inflammables and no external factors prevent
the normal cooling of the machine (free space around
machine must be no less than 50 cm)�
•
The machine must not be used in the areas with
dust and containing explosive gases and vapours of
aggressive substances�
•
Do not let small objects get into the machine - they
can disable it�
•
Install the machine on a smooth, dry surface to
prevent tipping� Do not install the machine on a
vibrating surface�
•
Carry the machine holding it only by its carrying
handle (handles) or a carrying belt� Pulling or lifting
the machine by a current-carrying or welding cable is
strictly prohibited�
It is not recommended to stay close to
working machine for persons having
electronic cardiostimulators, due to a
danger of electromagnetic field created,
which can cause its faulty operation.
During operation
•
Observe the recommended machine time factor,
otherwise, the overload will result in the early wear of
its components thus reducing the machine service life�
•
It is prohibited to expose the machine to rain or snow
and also use it in moist or humid environment�
•
To avoid electrical shock do not touch machine
current-carrying elements�
•
Do not touch the body of the connected machine
with wet hands, wet gloves or clothes�
•
Do not get your body parts wound with welding
cables�
•
Always switch off the machine when replacing an
electrode or shifting an earth clamp as well as moving
the machine�
•
Never hold the running machine on your shoulder
and do not hang it on the carrying belt�
•
Using the suspended machine except when a
suspension device has been specially designed for
this purpose is prohibited�
•
The welding arch radiates bright visible light
beams both invisible ultra-violet and infra-red beams�
Influence of light of an arch on the unprotected eyes
within 10-20 seconds in radius up to 1 meter from an
arch causes strong pains in eyes and a photophobia�
Longer influence of light of an arch on the unprotected
eyes can result in serious diseases� Radiations of an
invisible spectrum cause burns on the unprotected
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