FMI PTW72, Руководство пользователя, Страница: 14 / 335

Move beam forward until wire is covered with flux. Turn vacuum on.
13. To begin welding turn the weld direction selector switch to the forward
position and push the start button on the NA5.
NOTE: To adjust the speed of the beam use the increase and decrease buttons on the
E200. This will adjust the speed percent to the desired speed.
14. As the beam moves past the opposite side electrode, energize the second
set
of pressure wheels, energize the copper back up wheels on opposite side,
lower opposite side electrode, turn opposite side flux valves on and press
the start button on the NA5.
15. Energize the outfeed grounding shoes. Lower the outfeed hold down roller.
16. When beam is nearing the end raise the infeed hold down roller; relax the
infeed ground shoes by turning switch to center position.
17. When datum side electrode reaches the end of the beam press stop on the
NA5, this will stop the electrode from welding.
18. Then relax first set of pressure wheels by turning the switch to the center
position, turn the datum side flux valves off by turning switch to the center
position, relax datum side copper back up wheels by turning switch to the
center position. Raise the datum side electrode.
19. When opposite side electrode reaches the end of the beam press stop on the
NA5; this will stop the electrode from welding.
20. Then turn the weld direction selector switch to the center position to stop
the beam from traveling. Turn off opposite side flux valve by turning
switch to center position. Relax the second set of pressure wheels by
turning switch to center position. Relax opposite side copper back up
wheels by turning switch to the center position. Raise the opposite side
electrode.
21. Then relax the outfeed ground shoes by turning the switch to the center
position. Then raise the outfeed hold down roller.
22. Repeat steps 1-21 to weld another beam.
PTW Auto Mode:
1. Auto mode can only be run once prep sequence has been completed and beam is at
start position. See Pull- Thru- Sequence of operation steps 1-9.
2. All selector switches should be in center position after start position has been
reached. Also wire height should be set before auto sequence is started. See note on
step 11 in the Pull- Thru- Sequence of operation section.
3. Press Cycle start button to start auto sequence.
4. Once auto sequence has started operator should constantly monitor machine
operation. Use datum side and opposite side torch joy sticks to adjust wire height
during automatic sequence.
NOTE: - Cycle stop can be used to halt the auto sequence. E-stop will stop the auto
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