Pro-Weld ARC 656-575 VERSION, Руководство по эксплуатации и обслуживанию

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ARC 6 5 6
PRO WEL D
If there is a gun fault, by unplugging the gun control cable at
the welder the LED will be “off” when the welder is first
turned off then turned back on. If there is a thermal overload
the LED will remain “on” until the temperature on the trans-
former comes down to a safe operating temperature.
8.0 WELD GUN SET-UP
8.1 Plunge Length
1. A different and correctly sized chuck and ferrule grip are
needed for each different stud diameter and style that will be
welded (see PRO WELD Accessories catalog for help in this
area). The appropriate chuck, or stud holder, is inserted into
the tapered chuck adapter and tapped lightly to insure a tight
fit. The ferrule grip is inserted in the hole in the foot and se-
cured with the locking screws to hold it in place.
2. Studs must NOT bind or hang up on the foot, ferrule grip,
or ferrule during the entire stud welding process. To assure
this, the foot/ferrule arrangement must be centered in relation
to the stud to be welded. To assure centering, loosen the leg
screws that hold the foot to the legs. Place a stud in the
chuck and a ferrule in the ferrule grip. With the leg screws
loosened, the foot will move freely in all directions. Adjust
the foot so that the stud is centered in the ferrule and no con-
tact occurs between the stud and the ferrule during retraction
or forward plunge of the stud.
CAUTION
The stud labeled GND is connected to the unit chassis and is
for grounding purposes only. Do not connect a wire from the
terminal labeled GND to one of the three-phase line termi-
nals as this may result in “hot” power unit chassis
7.0 CONTROL PANEL DESCRIPTION
ON-OFF POWER SWITCH
The ARC-656 is turned “ON” by turning the knob on the
switch to the “ON” position.
WELD TIME
The weld timer setting determines the duration of the weld
current. By adjusting the weld time knob the weld time is
displayed on the digital meter in seconds. The weld time
range is from .005-1.000 seconds.
TRIGGER LED INDICATOR
The trigger LED “ON” indicates a complete circuit to the
unit through the gun control cables and gun switch. This
LED will turn “ON” when the gun trigger is pressed.
FAULT LED INDICATOR
The fault LED “on” indicates either the internal temperature
in the main transformer has reached its maximum or there is
a shorted gun solenoid or a shorted control cable. In either
case the LED will stay “on” and lockout the gun from trig-
FIGURE 3
CONTROL PANEL FRONT
PAGE 3
GROUND
FIGURE 2