SECtIoN 4
B. POWER LIGHT
E. AIR
PRESSURE
GAUGE
D. AIR
TEST SWITCH
froNt VIEW
WArNINg
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.
WArNINg
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.
(WHITE)
H. FAULT LIGHT
(AMBER)
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 ad-
justed to desired pressure (5.5 bar / 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 5.5 bar (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.
C. CURRENT
CONTROL
KNOB
G. TRIGGER LOCK
SWITCH
109
oPErAtIoN
F. AIR PRESSURE
CONTROL KNOB
rEAr VIEW
A. POWER ON-OFF
(I-O) SWITCH