Crown CT33123 Original Instructions Manual page 13

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� CROWN reserves the right to change
the specification of the product described at any time
without prior notice�
Safety guidelines during machine opera-
tion
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, welding cable or gas
hose is strictly prohibited�
• It's necessary to ensure a proper ventilation of
workplace or to use special exhausts for removal of
fumes, formed during welding process�
• Follow precautions for storage, transportation and
usage of compressed gas cylinders:
• gas cylinders should be used and stored in proper
ventilated rooms;
• store a gas cylinder away from high-temperature
sources, protect it from direct sunlight;
• it is prohibited to move a shielding gas cylinder;
if it contains flow control valve, this valve should be
dismounted and valve cover should be installed;
• it's prohibited to lift simultaneously a gas cylinder
and a machine;
• transport cylinders by a special carriage;
• before use, please ensure that a gas cylinder
contains a gas relevant to work performed;
• protect cylinder against fall while using it, use
special legs, boxes, and fix it with a lashing.
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�
• Don't point a welding torch to yourself, other people,
or animals�
• Don't touch a gas cylinder by tungsten electrode end
(if welding torch is turned on)�
• 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
skin� Therefore it is forbidden to work without
a protective face shield, gloves and the special
clothes covering open skin.
• Observe rules and wear special protective clothes:
everything should be fully buttoned; valves of pockets
are to be let out; do not tuck a jacket in breeches, and
wear breeches atop a footwear�
• After operating do not touch the welding seam and
an area around it - you can be badly burnt�
• After operations the electrode end and torch ceramic
nozzle are hot, so manipulating with the electrode
(removal, replacement, etc�) should be done only in
protective gloves�
• Tungsten dust formed during electrode sharpening
is harmful (especially dust of tungsten electrodes
with additive of thorium), so always wear respiratory
protection during electrode end sharpening�
• Beware of ignition of surrounding objects due to
high temperature of a welding arch, or particles of the
melt metal� Remember, invisible design components
(wooden beams, insulation materials, etc�) can catch
fire as well.
• Do not work next to highly inflammable liquids,
gases and items (timber, paper, etc�)�
• Ensure, that incandescent items or weld spatter
don't fall on a machine, welding cables, gas hoses,
and gas cylinder�
• Be cautious when executing welding works on
capacities or pipelines in which combustible or toxic
substances were stored� Perform their decontamination
English
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