1019567 REV. 03 89
1. Turn off the welder and unplug main power.
2. Turn air pressure to zero, then disconnect main air supply.
3. Open the left side cover. See Section
5.3 Opening and Removing the Left Side Cover (EDP 100-
032-338).
4. Remove the nose assembly (Section
5.5.1 Removing the Nose Assembly).
5. Unplug the Keypad connector (P30) to the Control board (Figure
Figure 5.15 Removing the
Controller Board).
6. Remove the 4 brass nuts and lock washers (
Figure 5.15 Removing the Controller Board).
7. Remove the Controller Board from the nose cover (Figure
Figure 5.15 Removing the Controller
Board).
8. To separate the Controller and Display boards: (1) unplug the Display board connector (P35) to
the Controller Board; unsnap the four standoffs (
Figure 5.15 Removing the Controller Board).
5.5.2.2 Replacing the Controller Board
To replace the Controller Board, reverse the instructions above.
WARNING General Warning
Turn air pressure to zero and disconnect the main air supply. Failure
to do this leave the welder under potentially dangerous air pressure.
NOTICE
If replacing the Display board, remove the four standoffs and the
short standoff (Figure 5.15 Removing the Controller Board). Insert
the four standoffs into the replacement Display board. Attach the
Display board to the Controller Board and replace the Control
module.
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