Background
In the event your ATC board has died, and you are waiting for the arrival of a replacement board, this doesn’t mean your machine is down. You can still complete manual tool changes as a workaround.
Tools
Metric hex wench set
770MX ATC
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Disconnect the air supply from the machine.
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Remove the solenoid cover on the left side of the ATC.
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Remove lines 1 and 2 as shown in the following image. Then, place line 1 where line 2 previously was.
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The know to the left side of the brass pressure regulator (1 in the above image) may need to be closed to allow pressure to build.
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Press the silver manual actuation button (3 as shown in the following image) on the Power Drawbar solenoid. This should fire your power drawbar.
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