ESAB Powercut 650, Instruction Manual, Page: 15 / 56

15
figure 4.1. powercut 650 controls
4.0 poWercut 650 controls (figure 4.1)
a. power switch (located on rear panel). When placed in ON position, the white
pilot light will glow indicating control circuit is energized and the cooling fan will
run. The Powercut 650 is now in the "READY" mode given a suitable air supply
and a properly assembled torch.
B. power light. Indicates that the Power Switch is in the ON position.
c. output current control. Adjustable from 10 to 40 amperes to suit cutting
conditions.
D. air check switch. When placed in ON position, air filter-regulator can be
adjusted to desired pressure (80 psig) before cutting operations. Allow air to
flow for a few minutes. This should remove any condensation that may have
accumulated during shutdown period. Be sure to place switch in OFF position
before starting cutting operations.
e. air pressure gauge. Indicates supply pressure to the unit.
f. air regulator control Knob. Used to adjust the air pressure for the cutting
process. Proper operating range for the Powercut 650 is 80 psig.
g. lock-in switch. When placed in ON position, permits releasing torch switch
button after cutting arc has been initiated. To extinguish arc at end of cut, press
and release torch switch button again or pull torch away from work. When placed
in OFF position, torch switch must be held closed by the operator during the
entire cutting operation and then released at the end of cut.
h. fault light. Will glow amber under the following conditions and operations
will come to a complete stop.
electric shocK can kill.
• Do NOT operate the unit with the cover
removed.
• Do NOT apply power to the unit while
holding or carrying the unit.
• Do NOT touch any torch parts forward
of the torch handle (nozzle, heat shield,
electrode, etc.) with power switch on.
arc raYs can burn eyes and skin;
noise can damage hearing.
• Wear welding helmet with No. 6 or 7
lens shade.
• Wear eye, ear, and body protection.
D. AIR
TEST SWITCH
G. TRIGGER LOCK
SWITCH
H. FAULT LIGHT
(AMBER)
B. POWER LIGHT
(WHITE)
E. AIR
PRESSURE
GAUGE
C. CURRENT
CONTROL
KNOB
front VieW
section 4 operation
A. POWER ON-OFF
(I-O) SWITCH
rear VieW
F. AIR PRESSURE
CONTROL KNOB