Cebora 1756 Bedienungsanleitung Seite 6

INSTRUCTION MANUAL FOR ARC WELDING MACHINE
IMPORTANT: BEFORE STARTING THE EQUIPMENT,
READ THE CONTENTS OF THIS MANUAL, WHICH MUST
BE STORED IN A PLACE FAMILIAR TO ALL USERS FOR
THE ENTIRE OPERATIVE LIFE-SPAN OF THE MACHINE.
THIS EQUIPMENT MUST BE USED SOLELY FOR WEL-
DING OPERATIONS.
1 SAFETY PRECAUTIONS
WELDING AND ARC CUTTING CAN BE HARMFUL TO
YOURSELF AND OTHERS. The user must therefore be edu-
cated against the hazards, summarized below, deriving from
welding operations. For more detailed information, order the
manual code 3.300.758
ELECTRIC SHOCK - May be fatal.
· Install and earth the machine according to the
applicable regulations.
· Do not touch live electrical parts or electrodes with
bare skin, gloves or wet clothing.
· Isolate yourselves from both the earth and the workpiece.
· Make sure your working position is safe.
FUMES AND GASES - May be hazardous to your health.
· Keep your head away from fumes.
· Work in the presence of adequate ventilation, and
use ventilators around the arc to prevent gases from
forming in the work area.
ARC RAYS - May injure the eyes and burn the skin.
· Protect your eyes with welding masks fitted with fil-
tered lenses, and protect your body with appropria-
te safety garments.
· Protect others by installing adequate shields or curtains.
RISK OF FIRE AND BURNS
· Sparks (sprays) may cause fires and burn the skin;
you should therefore make sure there are no flam-
mable materials in the area, and wear appropriate
protective garments.
NOISE
This machine does not directly produce noise excee-
ding 80dB. The plasma cutting/welding procedure
may produce noise levels beyond said limit; users
must therefore implement all precautions required by law.
PACEMAKERS
· The magnetic fields created by high currents may affect the
operation of pacemakers. Wearers of vital electronic equip-
ment (pacemakers) should consult their physician before
beginning any arc welding, cutting, gouging or spot welding
operations.
EXPLOSIONS
· Do not work in the vicinity of containers under pres-
sure, or in the presence of explosive dust, gases or
fumes. · All cylinders and pressure regulators used
should be handled with care.
6
ELECTROMAGNETIC COMPATIBILITY
This machine is manufactured in compliance with the
instructions contained in the harmonized standard IEC
60974-10, and must be used solely for professional pur-
poses in an industrial environment. There may be poten-
tial difficulties in ensuring electromagnetic compatibility
in non-industrial environments.
DISPOSAL OF ELECTRICAL AND ELECTRONIC
EQUIPMENT
Do not dispose of electrical equipment together
with normal waste!In observance of European
Directive 2002/96/EC on Waste Electrical and Electronic
Equipment and its implementation in accordance with
national law, electrical equipment that has reached the
end of its life must be collected separately and returned
to an environmentally compatible recycling facility. As
the owner of the equipment, you should get information
on approved collection systems from our local represen-
tative. By applying this European Directive you will
improve the environment and human health!
IN CASE OF MALFUNCTIONS, REQUEST ASSISTANCE
FROM QUALIFIED PERSONNEL.
2 GENERAL INFORMATION
This manual has been prepared for the purpose of educating
personnel assigned to install, operate and service the wel-
ding machine.
This machine is a constant direct current power source,
designed for welding with covered electrodes, and with the
TIG procedure with scratch starting.
This welding machine must be used solely for the uses
described in the Instruction Manual.
Upon receiving the welding machine, make sure there are no
broken or damaged parts. The purchaser should address
any complaints for losses or damage to the vector.
Please indicate the article and serial number whenever
requesting information about the welding machine.
2.1 EXPLANATION OF TECHNICAL SPECIFICATIONS
IEC 60974.1 The welding machine is manufactured accor-
IEC 60974.10 ding to these international standards.
N°. Serial number.Must be indicated on any type
of request regarding the welding machine.
Transformer - three-phase rectifier
Drooping characteristic.
Suitable for welding with covered electrodes.
U . PEAK Secondary open-circuit voltage. Peak value.
0
X. Duty cycle percentage.
The duty cycle expresses the percentage of
10 minutes during which the welding machi-
ne may run at a certain current without
overheating
I . Welding current
2
U . Secondary voltage with welding current I
2
U . Rated supply voltage
1
.
2