Chicago Electric 90648 Assembly And Operating Instructions Manual page 12

Welding systems, 25 amp
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NOTE: For additional information regarding the parts mentioned in the following pages,
refer to the Assembly Diagram on page 16.
1.
Check the Plasma Torch Head (1A). If necessary, clean or replace the Nozzle
(6A) and Electrode (3A) if worn or dirty.
(See Assy. Diagram.)
2.
Clamp the Earth Return Clamp (3) to the bare metal workpiece. (See Figure A.)
3.
Connect the air supply hose (not included) to the Air Regulator (5) located on the
back of the Plasma Cutter. (See Figure A.)
4.
To increase the air pressure to the Plasma Cutter, turn the Knob on the Air Regu-
lator (5) clockwise. To decrease the air pressure, turn the Knob counterclock-
wise. (See Figure A.)
5.
Turn on the air compressor (not included) and, using the Knob on the Air Regula-
tor (5), set the air pressure to 60 PSI as indicated on the Manometer (4).
(See Figure A.)
POWER
ON
LIGHT
(6)
POWER
SWITCH
(1)
SKU 90648
90648.p65
12
ASSEMBLY AND OPERATING INSTRUCTIONS
TORCH HEAD WITH START BUTTON (1A)
THERMOSTAT
AIR
LIGHT
SHORTAGE
(7)
LIGHT
MANOMETER (4)
(8)
TORCH
LINE
(2)
EARTH RETURN CLAMP (3)
POWER CORD (11)
PAGE 12
12/1/2003, 10:56 AM
AIR
REGULATOR
(5)
FUSE
(9)
FIGURE A

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