Reply to "#282 Original Gantry crane help"

David JohnstonOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

The clutch assembly selects between hoist and rotate. If your crane rotates one way, but not the other, you should probably be looking for an electrical problem. I believe this crane has a double wound field. The motor changes direction by connecting one field lead or the other. It could also be a problem in the motor gear box. But if it was the crane would have problems in one direction for both hoist and rotate.

2/24/197:29 PM

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