Tweco 175 SE Arc Master - Manuel (Page 27)

OpERATION ARC MASTER 175 SE
Manual 0-5054 4-1 OPERATION
Conventional operating procedures apply when using the
Welding Power Source, i.e. connect work lead directly to
work piece and electrode lead is used to hold the electrode.
The welding current range values should be used as a guide
only. Current delivered to the arc is dependent on the weld-
ing arc voltage, and as welding arc voltage varies between
different classes of electrode, welding current at any one
setting would vary according to the type of electrode in use.
The operator should use the welding current range values
as a guide then fine tune the welding current to suit the
specific application. Refer to the electrode manufacture's
literature for further information.
4.01 Front Panel
Front Panel
The welding power source is protected by a self re-setting
thermostat. The indicator will illuminate if the duty cycle
of the power source has been exceeded. If the Over Heat
light illuminates wait for the Over Heat light to extinguish
before resuming welding.
(A) Process Selection Switch
Switches between Lift TIG and Manual Arc (STICK) Weld-
ing modes.
(B) Power On Indicator
The Power ON Indicator illuminates when the ON/OFF
switch is in the ON position and the nominal mains volt-
age is present.
(C) Over Heat Indicator
The welding power source is protected by a self resetting
thermostat. The indicator will illuminate if the duty cycle
of the power source has been exceeded. If the Over Heat
light illuminates wait for the Over Heat light to extinguish
before resuming welding.
(D) Welding Current Control
The welding current is increased by turning the Weld Cur-
rent control knob clockwise or decreased by turning the
Weld Current control knob anti-clockwise. The welding
current should be set according to the specific application.
Refer to the electrode manufacture's literature for further
information.
(E) ON/OFF Switch (located on rear panel (not shown)
This switch controls the Mains Supply Voltage to the Power
Source.
175
160
5
60
80
100
120
140
40
20
A R C M A S T E R
175 SE
Weldskill
(A) Process
Selection
Switch
(B) Power On
Indicator
(C) Over Heat
Indicator
(D) Welding
Current
Control
Art #: A-08478
Figure 4-1: 175 SE Control Panel
SECTION 4:
OPERATION