Thermal Dynamics C-20A Cutskill, Service Manual

Page: 15 / 42

Manual 0-4697 4-1 Operation
SECTION 4:
OPERATION
4.01 Front Control Panel
Overheating
Indicator
AC Power
Indicator
Air Error Indicator
Torch Switch
Latch Indicator
Torch Switch
Latch Button
Air Set
Button
Air Vents
Work Lead
Connection
"On / Off"
Switch
Art # A-04427
Torch
Connection
I
O
115VAC
230VAC
8
1
0
12
14
10
11
1
2
13
1
4
15
17 18 19
20
2
1 2
2
23
24
25
A
20A
16
18
20
16
Current
Control Knob
A. Indicator Lamp
• Power Indicator
Lights when primary power switch is turned
on.
• TEMPERATURE Indicator
Indicator is normally OFF. Indicator is ON
when internal temperature exceeds normal
limits.
• Air Error Indicator
This indicator lights and is accompanied by an
intermittent audible tone when there is not
enough air pressure to operate the power sup-
ply. Indicator is normally off.
NOTE
It is possible to have enough air pressure to op-
erate the power supply but not enough air flow
to operate the torch.
• Torch Switch Latch Indicator
This indicator lights when the Torch Switch
Latch Button has been pressed for continuous
cutting.
B. Buttons
• Torch Switch Latch Button
For continuous cutting performance. Depress
this button ( turn “On” ) while cutting with the
torch. Release the torch trigger and the torch
will continue to cut without depressing the torch
trigger.
• Air Set Button
To adjust air pressure and to cool down heated
torch.
Art # A-04503
Air will flow from gap
next to shield cup.
C. Main Current Control Knob
To adjust cutting current. Turning clockwise in-
creases the cutting current and counter clock-
wise decreases the cutting current.
115VAC
230VAC
8
10
12
14
10
11
12
13
14
15
17 18 19
20
21
22
23
24
25
A
16
18
20
16
Art # A-04428
Outer numbers
230V Input
Inner numbers
115V Input
D. Primary Power Switch, ON / OFF
The power switch is located on the front panel.
Placing the primary power switch to the “ON”
position energizes the power source and acti-
vates the Power Indicator.
WARNING
When the power source is overloaded, the switch
turns to the OFF position automatically. DO
NOT TURN ON BY FORCE.