Weld settings chart, Duty cycle (duration of use), Material thickness (steel) – Chicago Electric 90 AMP FLUX WIRE WELDER 68887 User Manual

Page 14: Min current max current

Advertising
background image

Page 14

For technical questions, please call 1-800-444-3353.

Item 68887

Weld Settings Chart

NOTE: The numbers within the

spaces are the approximate wire

feed settings recommended*

for this wire size and material

thickness.

Material Thickness (Steel)

18 Gauge 16 Gauge 14 Gauge

1

/

8

"

3

/

16

"

MIN current

MAX current

0.030″ Wire Size

(Flux-Core, Mild Steel)

1.5

speed

2

speed

4

speed

8

speed

9

speed

0.035″ Wire Size

(Flux-Core, Mild Steel)

1.5

speed

2

speed

3

speed

8

speed

9.5

speed

* 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 (90 A) 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.

20% Rated Duty Cycle

at 90 A output

2 minutes welding

followed by

at least 8 minutes of rest

ON

MIN

OFF

MAX

WIRE FEED SPEED

GUN

GROUND

120V~

60Hz

20A

90 AMP FLUX WIRE WELDER

ITEM 68887

Specifications

Wire

0.030" – 0.035" Flux-Core

Capacity 18 Ga. – 3/16" Steel Plate

Weldable 

Materials

Mild, Low Alloy Steel 

(Not for Aluminum or Stainless Steel)

Gun

concrete slab

(or other heat-proof,

non-conductive

surface)

SAFETY

MAINTENANCE

BASIC WELDING

WELDING TIPS

SETUP

Advertising