FMI PTW72, Manual

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will stop when switch is released. The PTW OUTFEED switch performs
the same functions for the outfeed conveyor.
d. WELDER Jog - Use to bring material into weld to position for weld.
Conveyors jog with this function.
e. WELDER ON – This is an indicator that will be illuminated when one or
both of the welders are welding.
f. WELD DIRECTION Rev/Fwd – Use to run the welder drive wheels either
forward or reverse.
g. CYCLE START – Use to start the machine automatic processing mode.
Pressing Cycle-Start will cause the machine to begin automatic processing.
h. CYCLE HOLD – Use to stop the machines automatic operation. Pressing
the
button will discontinue the automatic machine processing.
i. PRESSURE WHEELS Open/Close – These two switches control the
pressure wheels on the movable side of the machine. The left switch will
cause the infeed side of the pressure wheel assembly to move in or out. The
switch on the right will cause the outfeed side of the pressure wheel
assembly to move in or out.
j. COPPER WHEELS Out/Weld – The switch on the left is used to open or
close the copper backup wheel on the stationary side of the machine. The
switch on the right is used to open or close the copper backup wheel on the
movable side of the machine.
k. ELECTRODES Up/Weld – Placing the switch on the left in Weld will cause
the electrode head on the stationary side of the machine to move down and
in against the beam. Placing the switch on the left in
UP will cause the
electrode head on the stationary side of the machine to move up and out.
The switch on the right performs the same functions for the electrode head
on the movable side of the machine.
l. FLUX VALVES Off/Weld - Selector switch to control flow of flux through
welding head. Placing the switch on the left in Weld will allow flux to flow
from the head on the stationary side of the machine. Placing the switch on
the left in
Off will stop the flow of flux on the stationary side. The switch
on the right performs the same functions for the flux system on the movable
side of the machine.
m. CARRIAGE Up/Down - Push buttons to control carriage position. Pressing
UP will cause the internal machine assembly(carriage) to move up.
Pressing DOWN will cause the carriage to move down. The position of
carriage will depend on the width of the flange for a particular beam. ( See
sequence of operation step 8 ).
n. HYDRAULICS Start/Stop - The START button activates the hydraulic
power unit and STOP button shuts hydraulic power unit down. The START
button will be illuminated when the power unit is in operation.
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