CIGWELD WELDSKILL 180, Service Manual, Page: 26 / 80

SERVICE MANUAL
180
OPERATION 4-2 0-5461
3. Over Temp Indicator
This welding power source is protected by a self resetting thermostat. The Over Temp indicator will illuminate
if the machine has over heated which normally occurs if the duty cycle of the power source has been exceeded.
Should the Over Temp indicator illuminate the output of the power source will be disabled. Leave the power
source turned On to allow the internal components to cool down. Once the power source cools down suf-
ficiently the Over Temp indicator will automatically go off. Note that the On/Off switch should remain in the
On position such that the fan continues to operate thus allowing the power source to cool sufficiently. Do not
switch the power source Off if an Over Temp condition is present.
4. Amperage Control (Welding Current)
The amperage control knob adjusts the amount of welding current delivered by the power source. The am-
perage is increased by turning the amperage clockwise or decreased by turning the amperage control knob
anti-clockwise. The amperage should be set according to the electrode type and the specific application. Refer
to application notes in this manual for further information.
5. Negative Welding Output Terminal
The negative welding terminal is used to connect the welding output of the power source to the work lead. Most
General Purpose electrodes are connected with work lead to negative. Consult the electrode manufacturer’s
information for the correct polarity.
Welding current flows from the workpiece via this Dinse type terminal to the power source. It is essential,
however, that the male dinse type plug is inserted and turned securely to achieve a sound electrical connec-
tion. Do not over tighten.
!
CAUTION 1
Loose welding terminal connections can cause overheating and result in the male plug being fused in the Dinse terminal.
6. Positive Welding Output Terminal
The positive welding terminal is used to connect the welding output of the power source to the electrode
holder lead. Most General Purpose electrodes are connected with electrode to positive. Consult the electrode
manufacturer’s information for the correct polarity.
Positive welding current flows from the power source via this Dinse type terminal. It is essential, however,
that the male Dinse type plug is inserted and turned securely to achieve a sound electrical connection. Do not
over tighten.
!
CAUTION 2
Loose welding terminal connections can cause overheating and result in the male plug being fused in the Dinse terminal.
7. On/Off Switch
This switch is used to turn the unit ON/OFF. When this switch is turned ON the Power Indicator on the front
panel will illuminate.
8. Fan
The Fan is turned ON/OFF by the Power Switch on the rear panel of the machine.
9. Hot Start Feature (Not Shown)
This feature operates in Stick (Manual Arc) mode. The Hot Start feature improves the arc start characteristics
by momentarily increasing the welding current to a level above the preset amperage (Welding Current). This
is a preset feature and is not adjustable.