Snap-on Tools Corporation Kenosha, WI 53141-1410
9
I. -(NEGATIVE) TERMINAL
Negative output terminal. The
ground cable is plugged into
this terminal during standard
welding operation. The torch
selector cable can be plugged
into this terminal for straight
polarity welding on very light
sheet metal, or for using flux
cored gasless wire.
WELDING
Optimum control settings will
vary according to the thickness of
the metal, the type of joint,
operator preference, etc. Best re-
sults can be obtained through expe-
rience with the welding machine or
by making trial welds. Select some
sample material of the same type and
thickness as the material to be
welded. Set the welding controls
for optimum results using the sample
material and weld until experience
is gained using the unit.
CONTINUOUS WELDING ON STEEL
1. Trim the electrode wire to leave
approximately 1/4 inch stickout
beyond the end of the contact tip
and install the welding nozzle.
The contact tip should be flush
or stick out up to 1/16 inch
beyond the end of the nozzle.
A. WIRE SPEED
Potentiometer controls speed of
wire drive motor to give wire
speed range of 10 to 500 inches
per minute.
B. HEAT (VOLTAGE) CONTROL
Twelve position switch adjusts
welder output voltage.
C. VOLTMETER
Indicates open circuit voltage
when torch switch is actuated
and arc voltage while welding.
D. CIRCUIT BREAKER
Primary power switch and over-
load protection device.
E. "ON" INDICATOR LIGHT
Illuminates when the circuit
breaker on the machine is "ON".
F. TORCH PANEL MOUNT
Combination power output, con-
tactor switch connection, gas
supply connection, and wire feed
output in a single unit.
G. TORCH SELECTOR CABLE
Plugs into (+) positive terminal
for standard welding operation
or (-) negative terminal for
straight polarity welding on
very light sheet metal, or for
using flux cored gasless wire.
H. +(POSITIVE) TERMINAL
Positive output terminal from
the welder DC power source. The
torch selector cable is plugged
into this terminal for standard
welding operation. The ground
cable can be plugged into this
terminal for straight polarity
welding on very light sheet
metal, or for using flux cored
gasless wire.
NOZZLE
ELECTRODE WIRE
(1/4" STICKOUT)
CONTACT TIP
(FLUSH TO
1/16" STICKOUT)
FIGURE 12.
NOZZLE ADJUSTMENT FOR WELDING STEEL
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