Lincoln Electric SAF-FRO PRESTOMIG 185MP Operator's Manual page 15

Changing Driving Rolls
WARNING
Turn the input power off of the welding power source
before installation or changing drive rolls.
PRESTOMIG 185MP and
equipped with drive roll V0.8/V1.0 for steel wire. For
others wire sizes, is available the proper drive rolls kit (see
"Accessories" chapter) and follow instructions:

Turn the welding machine off.

Release the pressure roll lever [30].

Unscrew the fastening cap [29].

Change the drive rolls [31] with the compatible ones
corresponding to the used wire.
Figure 6

Screw fastening cap [29].
Gas Connection
A gas cylinder must be installed with a proper flow
regulator. Once a gas cylinder with a flow regulator has
been securely installed, connect the gas hose from the
regulator to the machine gas inlet connector. Refer to
point [17] of the Figure 3.
WARNING
The welding machine supports all suitable shielding gases
including carbon dioxide, argon and helium at a maximum
pressure of 5,0 bars.
Welding GMAW, FCAW-SS Process
PRESTOMIG 185MP and PRESTOMIG 210MP can be
used to welding GMAW and FCAW-SS process.
PRESTOMIG 210MP has been provided with synergic
GMAW process.
PRESTOMIG 185MP and PRESTOMIG 210MP does not
include the gun necessary for GMAW or FCAW-SS
welding. Depending on the welding process can be
purchased separately (see "Accessories" chapter).
English
PRESTOMIG 210MP is
30
31
29
Preparation the Machine for Welding
GMAW and FCAW-SS Process
Procedure of begin welding of GMAW or FCAW-SS
process:

Determine the wire polarity for the wire to be used.
Consult the wire data for this information.

Connect output the gas-cooled gun to GMAW /
FCAW-SS process to Euro Socket [7].

Depending on the using wire, connect the work lead
[19] to output socket [8] or [9]. See [25] point –
terminal block of changing polarity.

Connect the work lead to the welding piece with the
work clamp.

Install the proper wire.

Install the proper drive roll.

Make a sure, if it is needed (GMAW process), that the
gas shield has been connected.

Turn the machine on.

Push the gun trigger to feed the wire through the gun
liner until the wire comes out of the threaded end.

Install a proper contact tip.

Depending on the welding process and the type of the
gun, install the nozzle (GMAW process) or protection
cap (FCAW-SS process).

Close the left side panel.

The welding machine is now ready to weld.

By applying the principle of occupational health and
safety at welding, welding can be begun.
Welding GMAW, FCAW-SS Process in
Manual Mode
Depending on welding machine, in manual mode can be
set:
PRESTOMIG 185MP

The welding load voltage

WFS

Inductance
PRESTOMIG 210MP
Basic menu

The welding load voltage

WFS

2-Step / 4-Step
The 2-Step - 4-Step changes the function of the gun's
trigger.

2 Step trigger operation turns welding on and off in
direct response to the trigger. Welding process is
performed when the gun's trigger is pulled.

4-Step mode allows to continue welding, when the
gun's trigger is released. To stop welding, the gun's
trigger is pulled again. 4-step mode facilitates to
making long welds.
4-Step does not work during Spot Welding.
13
Advanced menu

The welding load voltage

WFS

Burnback

Run-in WFS

Spot Time

Preflow Time/ Pastflow
Time

2-Step/4-Step

Inductance
WARNING
English