Weld Settings Chart; Duty Cycle (Duration Of Use) - Chicago Electric 68887 Owners Manual & Safety Manual

Weld Settings Chart

NOTE: The numbers within the
spaces are the approximate wire
feed settings recommended* for this
wire size and material thickness.
.030" Wire Size
(Flux Core, Mild Steel)
.035" Wire Size
(Flux Core, Mild Steel)
* This chart is only intended to show general guidelines for different wire sizes and for different
thicknesses of material. The settings should only be used at the beginning of a weld and must be
adjusted after stopping and carefully inspecting the weld. Proper welding takes experience.

Duty Cycle (Duration of Use)

Avoid damage to the Welder by not welding
for more than the prescribed duty cycle time.
The Duty Cycle defines the number of minutes, within
a 10 minute period, during which a given welder can
produce a particular welding current without overheating.
For example, this Welder with a 20% duty cycle at
rated output (90A) must be allowed to rest for at
least 8 minutes after every 2 minutes of continuous weld.
Failure to carefully observe duty cycle limitations
can easily over-stress a welder's power generation
system contributing to premature welder failure.
This welder has an internal thermal protection
system to help prevent this sort of over-stress.
When the unit overheats, it automatically shuts down and
the Overload Indicator lights. The welder automatically
returns to service after cooling off. Rest the Gun on
an electrically non-conductive, heat-proof surface,
such as a concrete slab, well clear of the ground clamp
while allowing the welder to cool with the Power Switch
on, so that the internal Fan will help cool the welder.
When the welder can be used again, use shorter welding
periods and longer rest periods to prevent needless wear.
Page 14
18 Gauge
MIN current
1.5
speed
1.5
speed
GUN
90 AMP FLUX WIRE WELDER
WIRE FEED SPEED
GROUND
For technical questions, please call 1-800-444-3353.
Material Thickness (Steel)
16 Gauge 14 Gauge
2 4
speed speed
2 3
speed speed
20% Rated Duty Cycle
at 90A output
2 minutes welding
followed by
at least 8 minutes of rest
ITEM 68887
ON MIN
OFF MAX
Wire .030"-.035" Flux-core
Capacity XX Ga. – X/X" Steel Plate
Electrode – X'
Cables
Ground Clamp – X'
120V~
60Hz
20A
1 3
/ " / "
8 16
MAX current
8 9
speed speed
8 9.5
speed speed
Gun
concrete slab
(or other heat-proof,
non-conductive
surface)
SKU 68887