General Notes; Tig Welding - Cebora 366 Manual De Instrucciones

Pos.
LED M: Welding position
The abbreviation that appears on the display U meets ISO
6947 standards and corresponds to the welding positions
listed in the figure.
The ASME are distinguished by a number plus a letter.
For greater clarity, their symbols are shown below.
LED S: Thickness.
The display O lights and displays the set current; the dis-
play U displays the thickness corresponding to the cur-
rent. Turning the knob Y changes the thickness and the
current will also be adjusted accordingly.
Obviously the thickness and corresponding current will
be measured in relation to the material settings and of
welding position.
Ø El.
LED R: Electrode diameter.
The electrode diameter is displayed as a result of settings
for the material
(LED L), position (LED M:), and thickness (LED S).
The display U shows the recommended electrode
without flashing; the operator may use the knob Y to
also display other diameters, but these will be shown
flashing to indicate that they are not recommended.
BC - 10-pin connector
This connector is connected to the remote
controls described in paragraph 4.
A clean contact is available between pins 3
and 6 which indicates when the arc is lit
(max. 0.5 A - 125 VAC/ 0.3 A - 110 VDC/1A
- 30 VDC).

3.3. GENERAL NOTES

Before using this welding machine, carefully read the
standards CEI 26-23/IEC-TS 62081. Also make sure the
insulation of the cables, electrode clamps, sockets and
plugs are intact, and that the size and length of the weld-
ing cables are compatible with the current used.
3.4. MMA WELDING WITH COVERED ELECTRODES
- This welding machine is suitable for welding all types of
electrodes, with the exception of cellulosic (AWS 6010).
- Make sure that the switch BE is in position 0, then con-
nect the welding cables, observing the polarity required
by the manufacturer of the electrodes you will be using;
also connect the clamp of the ground cable to the work-
piece, as close to the weld as possible, making sure that
there is good electrical contact.
- Do NOT touch the torch or electrode clamp simultane-
ously with the mass terminal.
- Turn on the machine using the switch BE.
- Select the MMA procedure by pressing the button A,
LED AW lit.
To select the type of current suitable for the electrode, fol-
low the instructions below:
• Press knob AQ and while holding it down press knob
AP.
• Hold it down until the display O shows the abbrevia-
tion H2O.
• Press knob AP until display O shows the abbreviation
20
MMA.
• Display U shows the abbreviation DC direct current-
type of current set by the manufacturer..
• To select the alternating current turn knob Y until the
display U shows the abbreviation AC.
N.B. To exit selection, briefly press the key AQ.
- Adjust the current based on the diameter of the elec-
trode, the welding position and the type of joint to be
made.
- Always remember to shut off the machine and remove
the electrode from the clamp after welding.
If you wish to adjust the Hot-start (LED D) and Arc force
functions (LED C), see the previous paragraph.

3.5. TIG WELDING

By selecting TIG AC
aluminium, aluminium alloys, brass and magnesium,
while selecting TIG DC
Connect the mass cable connector to the positive pole (+)
of the welding machine, and the clamp to the workpiece
as close as possible to the welding point, making sure
there is good electrical contact.
Connect the power connector of the TIG torch to the neg-
ative pole (-) of the welding machine.
Connect the torch connector to the welding machine
connector BC.
Connect the torch gas hose fitting to the fitting BD on the
machine, and the gas hose from the cylinder pressure
regulator to the gas fitting BH.
3.5.1 Cooling unit. (optional for Art.351).
If using a water-cooled torch, use the cooling unit.
Insert the torch cooling hoses in the fittings BI and BL of
the cooling unit, being careful to correctly place the deliv-
ery and return.
3.5.1.1 Description of protections
- Coolant pressure protection.
This protection is achieved by means of a pressure
switch, inserted in the fluid delivery circuit, which controls
a microswitch. Low pressure is indicated from the flash-
ing message H2O on the display O.
3.5.1.2 Start-up
Unscrew the cap BF and fill the tank (the equipment is
supplied with approximately one liter of fluid).
It is important to periodically check through the slot BM
that the fluid remains at the "max" level".
As a coolant, use water (preferably deionized) mixed with
alcohol in percentages defined according to the following
table:
water/alcohol
-0°C up to –5°C
-5°C up to –10°C
NOTE If the pump runs with no coolant present, you must
remove all air from the tubes.
In this case shut off the power source, fill the tank, con-
nect a hose to the fitting (
the hose in the tank. Only for Art. 351, insert the pressure
switch connector and the power cord into the sockets BR
and BQ.
Run the power source for approximately 10/15 seconds,
welding mode you may weld
allows you to weld stainless
steel, iron and copper.
temperature
4L/1L
3.8L/1.2L
) and insert the other end of