Buffalo Tools MMIG125, Assembly & Operating Instructions

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10
POWER SOURCE CONNECTION
POWER REQUIREMENTS
This welder is designed to operate on a
properly grounded 120 volt, 60Hz, single-
phase alternating current (ac) power source
fused with a 20 amp time delayed fuse or cir-
cuit breaker. It is recommended that a quali-
fied electrician verify the ACTUAL VOLTAGE
at the receptacle into which the welder will
be plugged and confirm that the receptacle is
properly fused and grounded. The use of the
proper circuit size can eliminate nuisance cir-
cuit breaker tripping when welding.
DO NOT OPERATE THIS WELDER if the
ACTUAL power source voltage is less than
105 volts ac or greater than 132 volts ac.
Contact a qualified electrician if this problem
exists. Improper performance and/or damage
to the welder will result if operated on inade-
quate or excessive power.
CONNECT TO POWER SOURCE
WARNING
High voltage danger from power source!
Consult a qualified electrician for proper
installation of receptacle at the power source.
This welder must be grounded while in use to
protect the operator from electrical shock. If
you are not sure if your outlet is properly
grounded, have it checked by a qualified elec-
trician. Do not cut off the grounding prong or
alter the plug in any way and do not use any
adapters between the welder’s power cord
and the power source receptacle. Make sure
the POWER switch is OFF then connect your
welder’s power cord to a properly grounded
120 Vac, 60 Hz, single phase, 20 amp power
source.
EXTENSION CORDS
For optimum welder performance, an exten-
sion cord should not be used unless
absolutely necessary. If necessary, care must
be taken in selecting an extension cord
appropriate for use with your specific welder.
Select a properly grounded extension cord
that will mate directly with the power source
receptacle and the welder power cord with-
out the use of adapters. Make certain that
the extension cord is properly wired and in
good electrical condition. Extension cords
must be a #12 gauge cord at the smallest.
Do not use an extension cord over 25 ft. in
length.
ASSEMBLING THE WELDER
The following procedures describe the
process required to assemble, install, main-
tain, and prepare to weld with your new wire
feed welder.
UNPACKING THE WELDER
1. Remove any cartons or bags containing
parts/accessories. (Most parts are
shipped inside the welder door.)
2. Open the cartons or bags packed with
your welder and inspect their contents for
damage.
3. Layout the parts and compare them to
the the packing list in Table 1 to familiar-
ize yourself with the parts and what they
are called. This will help you when read-
ing the manual.
PACKING LIST
Table 3 contains a list of the items you will
find packed in the carton.
Table 3. Packing List
ITEM QTY.
Welder 1
Face Shield 1
Face Shield Handle 1
Handle Screws 2
Shaded Lens 1
Welder Handle 1
Wire Brush/Hammer 1
Parts Bag 1
Contact Tip 0.030 1
Contact Tip 0.035 1
Nozzle 1
.030 Fluxcore sample
Manual, Instruction 1
ASSEMBLE THE FACE SHIELD
1. Insert the upper tongue (1) of the handle
(B) into the upper slot (2) on the face
shield (A).
2. Align the second tab on the handle with
the second slot in the face shield by
pushing the bottom of the handle in
WELDER INSTALLATION