Installation Of The Welding Wire - Helvi 1357 Manual De Uso Y Manutención

FACE SHIELD ASSEMBLY AND
MAINTENANCE
• In order to assemble the hand shield (Fig.2);
insert the plastic protection shield in the spe-
cial opening fixing it with the two screws.
Place the handle fixing it in the slit of the
protection mask, push it and rotate it by 90°
until it enters into the hole inside the protec-
tion mask.
A
B
B
CAUTION: Never look at an electric arc
without eye protection, the arc rays can
injure the eyes permanently. Use always
the protection shield supplied with the
power source or any other protection
mask or welding helmet.
USE
The shield are for personal use and must only be
used to protect the welder from the optical radiation
produced by the electric welding arc.
CLEANING AND MAINTENANCE
Clean the shield after each time it is used. The
shield should only be cleaned using a soft cloth
or compressed air: check whether any parts of the
shield are worn and replace these if damaged.
The materials used to make the shield are usually
compatible but can cause allergic reactions in
particularly sensitive people. Disinfecting should be
performed using solutions of benzil-lauryl-dimethyl-
ammonium chloride or UV germicide lamps.
LEVELS OF PROTECTION
Only use the shield in accordance with the operating
instructions and make sure that the protection
filter is suited to the type of welding. Remember
that the filters are NOT shatterproof and therefore
they should be protected by colourless plates of
same size. To obtain a better level of the protection
against welding spatter , wear gloves and protective
clothing.
SPARE PARTS
Replace any parts that seem damaged or deformed
immediately. Only original spare parts must be
used. Do not use filter glass as replacements if
these are not certified or do not have a declared
optical class. Ensure that any replacement filter is
the correct safety shade. If in doubt consult your
local supplier.
A B
B
Fig.2
RESTRICTIONS OF USE
The shields only provide adequate protection for
the forehead, the sides of the face and the neck if
used for the stated purpose.
INSTALLATION OF THE
WELDING WIRE
The power source is supplied with a welding wire
spool. In order to install this wire into the feeding
system, follow the instructions hereafter described
and refer to Figure 3.
• Loosen the nut (I) of the spool holder (bra-
ke drum) and remove the spring (R) and the
external ring.
• Remove the plastic protection from the spool
(K) and place it on the spool holder again.
Mount the external ring (J), the spring (R)
and the plastic lock nut (I) again. These
parts form the braking system of the wire
spool speed. NOTE: Do not tighten the nut
too much, excessive pressure strains the wire
feeding motor, while too little pressure does
not allow the immediate stop of the wire
spool at the end of the welding.
• Loosen and lower the plastic knob (L), re-
lease the upper roll of the feeder (N) and
extract the wire from the torch liner.
• When the wire is disconnected, keep it with
pliers so that it cannot exit from the spool,
and if necessary straighten it before inserting
it in the wire input guide (O). Insert the wire
on the lower roll (M) and in the torch liner.
WARNING: The torch must be kept straight.
When feeding a new wire through the liner,
make sure the wire is cut cleanly (no burrs
or angles) and at least 5cm of the end is
straight (no curves). Failure to follow these
instructions could lead to the wire damaging
the liner.
• Lower the upper roll (N) and the knob (L) and
Fig.3
GB
17