Cebora MMA 2336/1, Instruction Manual

Page: 10 / 64

10
G) Continuous TIG welding.
The arc strikes by creating a short-circuit between
the electrode and the workpiece; the welding cur-
rent is adjusted by means of the knob D .
H) Pulsed TIG welding .
The arc strikes by creating a short-circuit between
the electrode and the workpiece, the peak current
is adjusted by means of the knob D , the base current is
adjusted by means of the knob C , the frequency is adju-
sted by means of the knob A .
I) Display .
Displays the value of the Amperes or Volts
based on the selections made using the
button
O . In addition, it displays the values
set using the knobs A and C .
L) Connector
To which the remote controls are connected
M) LED
When lit, it indicates that display I is showing the wel-
ding voltage. Activated by means of selector switch O .
N) LED
When lit, it indicates that display I is showing the wel-
ding current. Activated by means of selector switch O .
O) Selector switch .
Pressing this key selects the LEDs M and N .
P) On/Off switch.
Q) Power cord .
R) (-) Output terminal .
S) (+) Output terminal .
3.3 MMA WELDING
• Make sure that the switch ( P ) is in position 0, then
connect the welding cables, matching the polarity
required by the manufacturer of the electrodes you will
be using.
VERY IMPORTANT: Connect the terminal of the ground-
ing cable to the workpiece, making sure that contact is
good to ensure smooth equipment operation and avoid
voltage dips with the workpiece.
• Do NOT touch the torch or electrode clamp simultane-
ously with the mass terminal.
• Turn the machine on using the switch (
P ).
• Press the selector switch E until the LED F lights.
• Adjust the current based on the electrode diameter,
welding position and type of joint to be made.
• Also adjust the hot-start using the knob
A (recom-
mended setting 15) and the arc-force using the knob C
(recommended setting 30 for basic electrodes).
Always remember to shut off the machine and remove
the electrode from the clamp after welding.
3.4 TIG WELDING
• This welding machine is suitable for welding the fol-
lowing materials using the TIG procedure: stainless
steel, iron, copper.
• Make sure that the switch (
P ) is in position 0.
• Connect the mass cable connector to the positive pole
(+) of the welding machine, and the clamp to the work-
piece as close as possible to the welding point.
• Connect the power connector of the TIG torch to the
negative pole (-) of the welding machine.
• Connect the gas hose to the outlet of the pressure
regulator, connected to an ARGON cylinder.
• Use a tungsten electrode with 2% thorium (red stripe).
• Do not touch the electrode and mass terminal simulta-
neously.
• Turn the machine on using the switch (
P ).
• Use the selector switch E to set the type of TIG weld-
ing, continuous or pulsed.
• Strike the arc by contact using a firm, rapid stroke.
•
Remember to shut off the machine and close the
gas cylinder valve when you have finished welding .
3.4.1 Preparing the electrode
Grind the electrode tip so that it has vertical grooves as
shown in the figure.
• To profile the tungsten, use a hard, fine-grained abra-
sive grinding wheel used solely for this purpose.
• Be careful with metal particle.
4 ACCESSORIES.
This welding machine is intended for use with the fol-
lowing accessories:
Art 181. Foot control to adjust the welding current.
Equipped with 5m of cable and ON-OFF switch.
Art 187+ extension art 1192. For current adjustment
during MMA welding.
Art 1284.05. Clamp + earth 35mm2 for MMA welding.
(Art. 328).
Art 1286.05. Clamp + earth 50mm2 for MMA welding.
(Art. 335).
Art 1432. Trolley.