Tig Welding; Generator Maintenance - Cebora TRI STAR MIG 1636/M Manual De Instrucciones

specifications plate.
Connect the gas hose of the welding machine al pressure
regulator of the cylinder.
Mount the MIG torch supplied with the welding machine
on the fitting E, and connect the power terminal leaving
the torch to the positive pole (socket H).
Connect the 2-pin connector leaving the torch to the
socket F.
Connect the power plug of the earth cable to the socket
G and the earth clamp t the workpiece. Make sure that
the groove of the rollers matches the wire diameter used.
To replace if necessary (Fig. 3):
BN
Open the side door. Mount the wire coil and slip the wire
into the feeder and torch sheath.
Block the wire press rollers with the knob BN and adjust
the pressure. Turn on the machine.
Remove the gas nozzle and unscrew the contact tip
(located on the end of the torch). Press the torch trigger
until the wire protrudes. CAUTION: keep your face away
from the gun tube assembly while the wire is coming
out. Tighten the contact tip and replace the gas nozzle.
Open the reducer of the cylinder and adjust the gas flow
to 8 – 10 l/min.
7.1 WELDING.
Select the PROG number based on the wire diameter to
be used, the type and quality of the material, and the type
of gas, using the instructions located inside the wire feed-
er compartment.
Use the button V to select the LED D (PROG), turning the
knob I to set the program number indicated in the instruc-
tions.
Briefly press the button V until the LED C (thickness)
lights, turning the knob I shows the thickness of the sup-
port material you used on the display M.
The machine is ready to weld.
7.2 MIG WELDING WITHOUT GAS
The actions to prepare the machine for welding are the
same as those described previously, but for this type of
welding proceed as follows:
Mount a coil of flux-cored wire for welding without gas.
Connect the power cable leaving the torch to the negative
pole (socket G).
12
Connect the earth cable to the positive pole (socket H).
Select a program suited for flux-cored wire.
7.3 WELDING WITH COVERED ELECTRODES.
It is recommended that you remove the MIG torch
before welding.
Use the button V to select the LED D (PROG). Turn the
knob I until the display M shows the abbreviation MMA.
Briefly press the button V to select the LED A (Ampere),
the display M shows the set current while the display N
shows the open-circuit voltage.
Shut off the welding machine.
The electrode clamp must normally be connected to the
Fig. 3
socket H (positive polarity), and the earth cable to the
negative polarity, socket G.
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.
Turn on the welding machine.
Do not touch the electrode clamp and the earth clamp
simultaneously.
In any case, observe the polarity shown by the electrode
manufacturer.
Always remember to shut off the machine and remove
the electrode from the clamp after welding.

7.4 TIG WELDING

Shut off the welding machine, remove the MIG torch and
mount the desired model of TIG torch.
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.
Turn on the machine using the switch U.
Use the button V to select the LED D (PROG). Turn the
knob I until the display M shows the abbreviation TIG.
Using the knob L, select the type of procedure TIG to
use, the display N displays
Art.1637 in 2-stage mode, and 4T to use the torch
Art.1637 in 4-stage mode.
Connect the gas hose to the outlet of the pressure regu-
lator of an ARGON cylinder.
Press the torch trigger and adjust the gas flow.
Use a 2% thorium-covered tungsten electrode (red strip),
diameter 1.6 ( 1/16" ).
Adjust the welding current using the knob I.
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.
8 MAINTENANCE
Any maintenance operation must be carried out by qua-
lified personnel in compliance with standard CEI 26-29
(IEC 60974-4).

8.1 GENERATOR MAINTENANCE

In the case of maintenance inside the machine, make
sure that the switch U is in position "O" and that the
2T for using the torch