Cebora MONO STAR MIG 1620/M, Instruction Manual

Page: 11 / 76

11
• Cut the wire with a well-sharpened tool, keeping it between
your fingers so that it cannot unwind, insert it inside the
plastic pipe exiting from the gear motor and, with the aid
of a finger, also insert it inside the steel tube until it comes
out of the brass adapter, see figures 5-6-7-8.
• Close the drive arm, being careful of the wire, which
must be aligned with the roller race, see fig. 9.
• Fit the welding torch.
After fitting the reel and torch, switch on the machine, select
the suitable synergic curve, following the instructions given
in the service functions (
PROCESS PARAMS ) paragraph.
Remove the gas nozzle and unscrew the current nozzle
of the torch. Press the torch button until the wire comes
out.
BE CAREFUL to keep your face away from the end
lance while the wire is coming out , screw up the current
nozzle and fit the gas nozzle.
Open the canister adapter and adjust the gas flow to 8 –
10 l/min.
During welding, the display screen
A displays the actual
work current and voltage. The displayed values may be
slightly different to those set. This can depend on numerous
different factors - type of torch, thickness different to
nominal thickness, distance between current nozzle and
the material being welded, and the welding speed. After
welding, the current and voltage values remain stored on
the display
A . To display the set values, the handle B will
have to be moved slightly, while, by pushing the torch
button without welding, the display screen
A shows the
empty voltage value and a current value of 0.
6 INSTALLATION AND START UP FOR WELDING
WITHOUT GAS.
The operations for preparing the machine for welding are
the same as those previously described, but for this type
of welding, proceed as follows:
Fit a reel of flux cored wire for welding without gas and
select the adequate synergic curve ( E71TGS 0.9mm ),
following the instructions described in the “service
functions (
PROCESS PARAMS ) paragraph.
Fit a suitable torch to the flux cored wire; because this
wire has no gaseous protection it heats up the end lance
much more.
Fit the wire roller suitable to the 0.9 mm diameter flux
cored wire and the current nozzle on the welding torch.
Connect the terminal of the earth lead, inside the
reel compartment, to the positive pole, while the lead
coming out of the dividing wall must be connected to
the negative pole.
Connect the earth lead clamp to the piece to be
welded.
7 DESCRIPTION OF FUNCTIONS SHOWN ON THE
DISPLAY SCREEN A.
When the machine is switched
on, for a few moments the
display screen A displays: the
article number of the machine,
the version and development
date of the software, and the
release number of the synergic curves.
Immediately after switch-on, the display screen
A shows:
The synergic curve used, the welding current, the speed
of the welding wire in metres/min, the welding voltage and
the recommended thickness in mm.
To increase or decrease the welding parameters, simply
adjust by means of knob
B . The values all change together
in a synergic way.
To change the welding voltage V, simply press the knob B
for less than 2 seconds. The display screen will show ( Arc
Length ) an adjustment bar with central 0. The value can
be changed by means of the knob B from -9.9 to 9.9. To
exit from the function, briefly press the knob
B .
By changing the value, once having exited the sub-menu,
alongside the voltage
V , an arrow will appear turned
upwards to indicate a higher adjustment of the set value,
while the arrow turned downwards will indicate a lower
adjustment.
7.1 SERVICE FUNCTIONS (PROCESS PARAMS)
SHOWN ON THE DISPLAY SCREEN A.
To access these functions, we must start from the main
display page and press the knob
B for at least 2 seconds.
To enter the function, simply select it by means of the
knob
B and press it for less than 2 seconds. To return
to the main display page, press the knob B for at least 2
seconds.
The functions which can be selected are:
•
Synergic curve (Wire Selection) .
To choose the synergic curve, by means of the knob
B , it is necessary to select and press on the curve
presented by the display screen A . Simply select the
curve of interest and confirm the choice by pressing
the knob B for less than 2 seconds.
After pressing the knob B return is made to the previous
display page ( PROCESS PARAMS ). Inside the menu
( Wire Selection ) are a number of curves which cannot
be used, shown by an asterisk. To release these, see
the (
Options ) function.
• Welding mode (Start Mode) .
Mode 2T , the machine starts welding when the torch
button is pressed and stops when this is released.
Mode 4T , to start welding, press and release the torch
button. To complete welding, press and release again.
To choose the welding start mode 2T or 4T, select one
of the 2 modes by means of the knob B and press the
knob B
for less than 2 seconds to confirm the choice.