Forney MIG 180FI, Operating Manual

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bottom of the handle in towards the face
mask, while at the same time pushing
upwards. (Alignment of the second tab is
made easier by applying pressure to the
point shown below.)
3. Once the handle tabs are properly seated in
the face shield slots, install the handle cover
by firmly pushing it into the recessed area on
the face shield.
4. Install the dark glass by sliding it into place
behind the glass retaining tabs.
Note: if your face shield was supplied with a 3” x
3.8” dark glass you may choose to remove the
extra material from the face shield to allow a
larger field of vision when welding. To remove
the extra material, remove the glass from the
face shield and carefully cut the material out of
the face shield with a utility knife.
5. Once protective dark glass has been
installed into face shield, secure it in place
with the retaining clips. Align the holes on
each of the retaining clips with the pins on
the retaining tabs and firmly press into place.
Face Shield
Handle
Cover
Handle
Extra
Material
Dark
Glass
Figure 3. Handle Installation
INSTALLING THE FEET
Locate the two black plastic feet for the
welder. (The front feet are slightly larger than
the back feet.)
1. Lay the welder on its side.
2. Align the holes of the front feet with the
front screw holes on the bottom of the
welder. The curved face of the front feet
should face the front of the welder.
3. Insert the two Phillips head screws (includ-
ed in the accessories bag) into the holes.
4. With a Phillips head screwdriver, securely
tighten both screws.
5. Align the holes of the back feet with the
rear screw holes on the bottom of the
welder. The curved face of the back feet
should face the rear of the welder.
6. Insert the two Phillips head screws
(included in the accessories bag) into the
holes.
7. With a Phillips head screwdriver, securely
tighten both screws. (see Figure 4)
Retaining
Clip
Figure 4. Feet Installation
SELECTING SHIELDING GAS
Retaining
Clip
Retaining
Tabs
The shielding gas plays an extremely impor-
tant role in the MIG welding process. It is
Figure 2. Face Shield Assembly
INSTALLING THE HANDLE
1. Insert the tabs of the welder handle into
the slots provided on the top of the welder.
2. Insert a large flat head screw (included in
the accessories bag) into each hole on
the top of the welder handle.
3. With a flat tip screwdriver, securely tight-
en both screws. (see Figure 3)
critical that the molten weld puddle be shield-
ed from the atmosphere. The shielding gas
creates a protective pocket around the weld
puddle which keeps impurities in the air from
contaminating the weld. Inadequate shielding
will result in porous, brittle welds.
Although there are many gasses and gas
mixtures available for MIG welding, the fol-