Emerson 2000IW Maintenance Manual page 99

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