Forney 190 MP Welder Quick Start Guide

Posted by Rachel Bigum on Oct 15, 2018 9:23:59 AM

In Stick welding, TIG welding, Safety, MIG welding

The Forney 190 MP

Get started with the Forney 190 MP! This is a breakdown of the guide that helps you get to know your new machine. 

1.  Read User Manual 

2. Assemble top handle and bottom supports. (Tools needed: screwdriver)

Assemble the top handle

3. Attach gas bottle and regulator hose assembly. (Tools needed: adjustable wrench)

 Attach gas bottle and regulator hose

4. Use Process Selector Knob to select desired process.
 
close up of the process selector knob

  • Skip to MIG 
  • Skip to Stick
  • Skip to TIG

    MIG Welding With the Forney 190 MP 

FIRST STEPS

1.  Install wire spool
Install the wire spool

2. Install MIG gun, turn it on, and squeeze trigger until wire comes out.

Install MIG gun and squeeze the trigger

3. Adjust wire feed tension (verify polarity is set correctly for MIG or Flux-core welding wire.
 Adjust wire feed tension

4. Adjust wire feed speed and voltage per chart on the inside of welder. 

 Adjust wire feed speed and voltage

5. Verify drive rolls, liner and tips are properly sized for desired wire diameter.
 Verify drive rolls, liner and tips

MIG Welding Tips 

Optimal Stick Out 

  • Stick out 1/2" +/- 1/8" 
  • Short stick out = more current and more penetration 

            1/2" stick out

Voltage 

  • Affects the arc shape 
  • Less voltage = tighter arc and potentially more spatter 

            voltage affects arc shape

Wire Feed Speed (WFS) 

  • Higher wire feed speed = more amperage
  • Can also affect arc shape and penetration 

             close up of wire feed speed knob

Travel Speed

  • Affects bead width and height 
  • Can also affect penetration 

             Travel Speed

      Stick Welding With the Forney 190 MP 

FIRST STEPS

1. Adjust polarity for the stick electrode (usually DCEP - Electrode Positive)
 Adjust polarity

2. Disconnect MIG gun as it will be electrically "hot" while Stick welding.

 Disconnect the MIG gun

3. Adjust amperage

 close up of amperage knob

4. Adjust hot start if needed. 
Adjust hot start

Stick Welding Tips 

Optimal Stick Out

  •  Optimal stick out varies by electrode type and diameter but is usually approximately 1/16”.
    1/16 stick out

Hot Start

  • Provides higher amperage at arc start to prevent electrode sticking.
    close up of the hot start knob

Amperage

  • Affects penetration and bead width.
  • Can also affect spatter, electrode starting and ability to weld vertical or overhead.
    Amperage knob

Travel Speed

  • Affects bead width and height.
  • Can also affect penetration.
    travel speed

       TIG Welding With The Forney 190 MP 

1. Attach TIG torch and Foot Pedal if desired.

 Attach TIG torch

2. Verify proper shielding gas is used for TIG welding (most MIG shielding gases will not work). 

close up of shielding gas

3. Disconnect MIG gun as it will be electrically "hot" while Stick welding.

an image of disconnecting the MIG gun

4. Adjust amperage.

 Adjust the amperage knob

* Torch & Food Pedal sold separately

TIG Welding Tips   

Optimal Stick Out

  • Optimal stick out varies by electrode type and diameter but is usually approximately 1/16”.
    1/16" stick out

Arc Start

  • A scratch or lift start is often used to initiate the arc.
  • Try to minimize electrode and tungsten contamination.
    a scratch or lift start is often used to initiate the arc

Amperage

  • Affects penetration and bead width.
  • Amperage is often referred to as “heat” in TIG welding.
    close up of the amperage knob

Travel Speed

  • Affects bead width and height.
  • Can also affect penetration.
    Travel speed

WARNING:  To prevent fire and serious injury: Keep torch and wire clear of grounded objects while welder is plugged in. Be sure to follow safe welding procedures and wear proper PPE (clothes, welding helmet, safety glasses, welding gloves, boots, etc.)

See the Forney 190 MP