Standard Accessories; Residual Risks - Telwin 953100 Bedienungsanleitung

_______________(GB)_____________
INSTRUCTION MANUAL
WARNING: BEFORE USING THE MACHINE READ THE
INSTRUCTION MANUAL CAREFULLY!
LIMITED SERVICE, MANUAL ARC WELDING MACHINES
FOR COATED ELECTRODES (MMA)
Note: In the following text the term "welding machine" will
be used.
1. GENERAL SAFETY CONSIDERATIONS FOR ARC
WELDING
- Avoid direct contact with the welding circuit: the no-load
voltage supplied by the welding machine can be dangerous
under certain circumstances.
- When the welding cables are being connected or checks and
repairs are carried out the welding machine should be
switched off and disconnected from the power supply outlet.
- Make the electrical connections and installation according to
the safety rules and legislation in force.
- The welding machine should be connected only and
exclusively to a power source with the neutral lead connected
to earth.
- Make sure that the power supply plug is correctly connected
to the earth protection outlet.
- Do not use the welding machine in damp or wet places and do
not weld in the rain.
- Do not use cables with worn insulation or loose connections.
- Do not weld on containers or piping that contains or has
contained flammable liquid or gaseous products.
- Do not operate on materials cleaned with chlorinated solvents
or near such substances.
- Do not weld on containers under pressure.
- Remove all flammable materials (e.g. wood, paper, rags etc.)
from the working area.
- Provide adequate ventilation or facilities for the removal of
welding fumes near the arc; a systematic approach is needed
in evaluating the exposure limits for the welding fumes, which
will depend on their composition, concentration and the
length of exposure itself.
- Use adequate electrical insulation with regard to the
electrode, the work piece and any (accessible) earthed metal
parts in the vicinity.
This is normally achieved by wearing gloves, shoes, head
coverings and clothing designed for this purpose and by
using insulating platforms or mats.
- Always protect your eyes using masks or helmets with special
actinic glass.
Use special fire-resistant protective clothing and do not allow
the skin to be exposed to the ultraviolet and infrared rays
produced by the arc; other people in the vicinity of the arc
should be protected by shields of non-reflecting curtains.
- The electromagnetic fields generated by the welding process
may interfere with the operation of electrical and electronic
equipment.
Users of vital electrical or electronic devices (e.g. pace-
makers, respirators etc.) should consult a doctor before
stopping in the vicinity of areas where this welding machine is
used.
Users of vital electrical or electronic devices should not use
the welding machine.

RESIDUAL RISKS

- OVERTURNING: position the welding machine on a horizontal
surface that is able to support the weight: otherwise (e.g.
inclined or uneven floors etc.) there is danger of overturning.
- IMPROPER USE: it is hazardous to use the welding machine
for any work other than that for which it was designed (e.g. de-
icing mains water pipes).
- Do not use the handle to hang up the welding machine.
2. INTRODUCTION AND GENERAL DESCRIPTION
This apparatus is a power source for arc welding, made specifically for
alternating current (AC) MMA welding with coated electrodes.

STANDARD ACCESSORIES:

- electrode holder clamp;
- return cable and earth clamp;
- wheels kit (in models on wheels).
3. TECHNICAL DATA
DAT A PLATE
Technical data relative to the performance of the welding machine may
be found on a plate (back panel) with the following symbols, whose
meaning is explained below.
1- EUROPEAN standard of reference for safety and construction of
arc welding machines.
2- Symbol for the internal structure of the welding machine.
3- Welding machine specification: drooping.
4- Symbol for welding procedure provided.
5- Symbol for power supply line:
1~: single phase alternating voltage.
6- Protection rating of casing.
H
7- :insulation class of transformer.
8- :protection class II.
S S
:welding machine suitable for use in environments with
heightened risk of electric shock.
Technical specifications for the power line:
9-
- U : Alternating voltage and frequency of welding machine
1
power supply (allowed limits ±10%).
- : Size of delayed action fuses to be provided in order to
protect the power line.
- I : Maximum current absorbed by the line.
1 MAX
10- Performance of welding circuit:
- U : maximum no-load voltage (open welding circuit).
0
- I : Conventional welding current, indicates the adjustment
2
range of the welding current (minimum maximum) at the
corresponding arc voltage.
- Ø: diameter of weldable electrodes.
- nc: the number of electrodes of reference that can be welded
starting with the welding machine at ambient temperature
until the first triggering of the thermostat.
- nc1: the number of electrodes of reference that can be welded in
one hour starting with the welding machine at ambient
temperature.
- nh: the AVERAGE NUMBER of electrodes of reference that can
be welded between reset and triggering of the thermostat.
- nh1: the number of electrodes of reference that can be welded in
one hour starting with the welding machine at regular heat
level.
11 - Serial number for identifying the welding machine (essential for
technical services, when ordering spare parts, for locating the
origin of the product).
In some models this number is shown on the front panel.
Note: The data plate shown above is an example to give the meaning of
the symbols and numbers; the exact values of technical data for the
welding machine in your possession must be checked directly on the
data plate of the welding machine itself.
OTHER TECHNICAL DATA
- WELDING MACHINE:
The welding machine weight is shown in table 1
(TAB. 1).
4. DESCRIPTION OF THE WELDING MACHINE
CONTROL, ADJUSTMENT AND CONNECTION DEVICES
5. INSTALLA TION
WARNING!
CARRY OUT ALL INSTALLATION OPERATIONS AND
ELECTRICAL CONNECTIONS WITH THE WELDING MACHINE
COMPLETELY SWITCHED OFF AND DISCONNECTED FROM THE
POWER SUPPLY OUTLET.
THE ELECTRICAL CONNECTIONS MUST BE MADE ONLY AND
EXCLUSIVELY BY AUTHORISED OR QUALIFIED PERSONNEL.
Unpack the welding machine, assemble the separate parts contained
in the package.
Assembling the protective mask
Assembling the return cable-clamp
- 3 -
Fig. A
see table 1 (TAB.1)
Fig. B
PREPARATION
Fig. C
Fig. D
Fig. E