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CONTROLS AND SETTINGS
(Figure B.2)
TOMAHAWK™ 625 front command panel.
FIGURE B.2
1. Output Current Knob: Potentiometer used to set
the output current used during cutting. Refer to
the Technical Specification section for more infor-
mation about the machine’s rated current range.
Air Purge: The Output Current Knob completely
rotated counterclockwise enables the air purge
function. A five minute timeout stops the purge
function; this will occur only if the Output Current
Knob remains in the purge mode for an extended
time.
2. Power ON/OFF green LED: Illuminates when
the machine is ON.
3. Output red LED: See the following table.
4. Thermal yellow LED: See the following table.
1
MPa = 145 psi
A
V
A
1
0
40
25
TOMAHAWK
625
www.lincolnelectric.com
1
2
3
4
5
1
MPa = 145 psi
A
V
A
1
0
40
25
TOMAHAWK
625
www.lincolnelectric.com
1
2
3
4
5
B-4
OPERATION
B-4
TOMAHAWK™ 625
LEDs
Output Thermal
(Red) (Yellow)
On Off
On On
Off On
Off Blink
Blink Off
Description
The cutting torch is energized.
Part in place error: the retaining
cap is not properly Attached.
To restore the machine:
• Install the torch retaining cap
firmly in place.
• Wait for 5 seconds; during this
time the output and thermal
LED’s blinks alternately.
• After 5 seconds the machine is
automatically restored and ready
to operate.
The machine is overheated and
the output has been disabled.
This usually occurs when the duty
cycle of the machine has been
exceeded. Leave the machine On
to allow the internal components to
cool. When the thermal LED turns
off, normal operation is again pos-
sible.
Power undervoltage error: the
machine is disabled. When the
power returns to the correct range,
the machine will restart automati-
cally.
Low air pressure error.
To check / adjust the air pressure
(see recommended values in the
Technical Specifications of this
manual):
• Put the machine in Purge mode
[1].
• Check and adjust the air pres-
sure using the pressure gauge
and air pressure regulator knob
[6].
• If necessary, check and adjust
also the inlet air pressure by
adjusting the external compres-
sor.
LIMITATIONS
Do not exceed output current and duty cycle rating of
machine. Do not use the TOMAHAWK™ 625 for pipe
thawing.
If the arc turns off while cutting using low input volt-
age, that is below 208V, lower the air pressure by
adjusting the regulator knob.
When using with the Outback 180, gouging is not rec-
ommended.