Chicago Electric 97717 - Manual (Page 11)

Page 11 SKU 97717 For technical questions, please call 1-800-444-3353.
cycle (at 70 Amps), actual welding
can occur for one minute and
then the welder must cool for nine
minutes. At a 20% duty cycle (at
50 Amps), welding can occur for 2
minutes and then the welder must
cool for 8 minutes.
Failure to carefully observe duty •
cycle limitations can stress a
Welder’s power generation system,
contributing to premature Welder
failure.
This Welder is equipped with an
•
internal thermal protection system
to help prevent damage to the unit.
When the Arc Welder overheats a
red light is illuminated on the control
panel and the unit automatically
shuts down. Then the unit returns
to service when it cools down and
the red light turns off.
Once the unit returns to service,
•
follow a more conservative duty
cycle routine to help prevent excess
wear to the Welder.
Attach the Ground Cable with Clamp 2.
(10) as close as possible to the
intended welding location.
(See Assy. Diagram.)
Place the bare end of the electrode
3.
(not included) in the Electrode Holder
(9). nOTE: Always keep the jaws of
the Electrode Holder clean to ensure
proper electrical contact with the
electrode. (See Assy. Diagram.)
Set the desired current (50~70 Amps) 4.
for the type of metal being welded
with the MIN/MAX Switch (12). Thin
metals use low current and heavy
metals use high current.
(See Assy. Diagram.)
Make sure the Power Switch (13) is 5.
off, then plug the Arc Welder’s Power
Cord (8) into a dedicated, 120 VAC,
20 amp line with delayed action type
circuit breaker or fuses.
(See Assy. Diagram.)
While grasping the handle of
6.
the Electrode Holder (9), with
the electrode clear of grounded
objects, turn the Power Switch (13)
to its “On” position. (See Assy.
Diagram.)
Hold the Welding Shield in front
7.
of your eyes. WARnIng! Never
look at the ignited arc without ANSI-
approved, arc shaded, eye protection
in a full face shield. Permanent eye
damage or blindness can occur.
Skin burns can occur. Wear a
NIOSH-approved respirator to avoid
breathing arc fumes.
Stroke
8. the area to be welded with the
electrode to ignite the arc. Never tap
the electrode into the welding surface
to ignite the arc. This damages its
external coating on the electrode
which prevents oxygen in the air from
coming into contact with the molten
metal, causing it to oxidize.
Once the arc is ignited, tilt the
9.
electrode backward at an angle
of approximately 30° and hold it
at a distance from the welding
object equal to the diameter of the
electrode.
nOTE:
10. If too much current is drawn
from the Arc Welder, the Thermal
Overload Protector will activate.
The red light on the Control Panel
will illuminate, and the Welder will
automatically shut off until it cools
down. If this happens, turn the Power