HTP MIG 2400, Руководство пользователя

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15
Changing the Contact Tip
The contact should be regarded as a wearing part and
therefore requires periodic replacement. Since steel wire is
passing through a copper tip, the wire will have a tendency
to wear away the copper tip, causing it to become oblong or
excessively oversized. This one-inch piece of copper is all
that is taking the welding amperage and transferring it to the
welding wire. Therefore, an excessively worn tip will cause
poor electrical contact between the wire and the tip, resulting
in a welder that will not weld smoothly.
To remove the contact tip, clip off the burnt wire at the end of
the welding gun. Unscrew the contact tip. Install the new tip
by feeding the wire through the hole in the center of the tip
and screw the tip into the swan neck.
Part # Fits Wire Size
15023B .023" 0.6 mm
15030B .030" 0.8 mm
15035B .035" 0.9 mm
15045B .045" 1.2 mm
Changing the Gas Nozzle
The gas nozzle is removed by unscrewing the nozzle from the
gas diffuser in a counter clockwise direction. If the nozzle and
the gas diffuser come off together, spatter has fused the two
together. To install the gas nozzle, simply twist the nozzle in
a clockwise direction and screw it back on to the gas diffuser.
The following gas nozzles are available for your welding gun:
Part # Description Application
S4328 Conical Nozzle General Welding
S4330 Cylindrical Nozzle Aluminum Welding
S4329 Spot Weld Nozzle Spot Welding
21-37F Small Conical Nozzle Tight Corners
Changing the Drive Roll
The drive roll has two grooves on it. The narrower of the two
grooves is marked 0.9 and is used for wire .035". The wider
groove, marked 1.2 is used for .045" wire.
To change the drive roll, simply remove the drive roll retaining
screws (7) and remove the drive rolls (4) from the adapter ring.
Select the correct groove, and install the drive roll so that the
proper groove lines up with the inlet wire guide (3) and the
guide tube (5). Install the drive roll retaining screw.
Replacing the Printed Circuit Board (PCB)
The PCB is a very reliable part of your HTP welder. Should
failure occur, it usually happens within the first five minutes
of operation and is caught during the initial test period at the
factory. However, should failure occur, replacement is very
simple.
1. UNPLUG MACHINE.
2. Remove the two screws, which hold the side panel on.
3. Remove the orange and yellow wires for the
burnback adjustment by gently pulling on them.
The orange wire is on the top and the yellow wire is
on the bottom.
4. Pry the two plastic retaining clips, which hold the
circuit board in the groove back and slide the circuit
board up about 1/2 way.
5. I have found that with the PCB 1/2 way out of the
groove, it is much easier to gently disconnect the
multi-pin connector from the circuit board.
6. With the multi-pin connector disconnected, you can
now completely remove the board.
7. Installation is the reverse of the above.