General Information; Installation - ARC 793 Bedienungsanleitung

INSTRUCTION MANUAL FOR STICK WELDING MACHINE

1 GENERAL INFORMATION

Before using this device all people authorised to its
use, repair or inspection, should read the book
"Safety rules for using
"Instruction manual" specific for every machine.
Contact your distributor if you have not understood
some instructions.
This manual has been prepared with the intent of
instructing the operator on how to install, operate, and
properly maintain this electric arc welding machine.
This welding machine must be used only with the
purposes described in the instruction manual. Upon
receiving and unpacking the machine, make a careful
inspection to ensure that there are no damaged parts.
Should there be a claim for losses or damages it must be
made by the purchaser directly to the shipper who handled
the goods.
When requesting information about this welding
machine, please state the machine part number and
serial number to
information relating to your machine.
1.1 DESCRIPTION OF TECHNICAL SPECIFICATIONS
IEC 974.1.......... This machine is manufactured
EN 60974.1 according
standards.
N°.................... Machine Serial Number which must
appear
relating to the machine.
.... Three phase transformer rectifier
................... Drooping characteristic.
........... Shielded Metal Arc Welding (Stick
Welding).
........... Suitable for TIG welding.
U ................ Secondary
0 PEAK
value.
X..................... Duty-Cycle Percentage.
The duty cycle is the number of
minutes, expressed as a percentage,
machines" and
ensure receiving accurate
to these international
on requests or enquiries
no-load voltage.
I .....................
2
U ....................
the
2
U ....................
1
3~50(60)Hz....... Three phase input supply at 50 or 60 Hz.
I .....................
1
different output levels I
IP 21................
................
NOTE: This machine has also been designed to work in
class 3 pollution areas (see IEC 664).

2 INSTALLATION

2.1 SET-UP
All connections must be made in compliance with current
regulations and in full respect of safety laws (see CENELEC
HD 427 standard).
Assemble the parts supplied with the welding machine.
To lift the machine use the two upper eyebolts, placing the
ropes as shown in fig.1.
The handle must NOT be used for lifting.
2.2 CONNECTIONS
•
Connect the yellow-green wire to a good electrical
ground.
•
Never use water pipes as ground conductors.
•
After final inspection, the welding machine should be
connected to the maximum power supply voltage
indicated on the front panel.
If you wish to change the power supply voltage:
− Set the selector switch knob to the zero position
(machine off).
Peak
− Remove the selector switch knob by unscrewing the
holding screw; beneath you will find the voltage change disk
− Position it so that the selector switch may turn only
towards the desired voltage indicated on the panel
− Insert the knob and fasten it in place with the screw .
the machine can operate (arc on )
within a ten minute
overheating.
Output welding current.
Secondary voltage, welding current=I
Nominal supply voltage.
Input Amps absorbed corresponding to
.
2
Machine case protection class. The 1 in
the singles digit place means that this unit
is no fit to work outdoors in the rain.
Fit to work in hazardous areas.
period without
.
2
5