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PSA: I was wrong about the weight limit on the old Manitowoc 4100W

I always heard the 4100W's chart was gospel, but I found a 1973 service bulletin from Manitowoc in a yard office in Detroit. It shows a 15% increase for certain lifts if you use the optional boom tip attachment. That's a huge jump they never put in the main manual. Has anyone else run into factory updates that change the book numbers?
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3 Comments
blair_webb
blair_webb21d ago
Buddy found a similar update for a Link-Belt once.
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the_aaron
the_aaron20d ago
Yeah, those Link-Belt updates can be a real lifesaver.
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ray_campbell46
Wow, did that bulletin say which lifts got the boost?
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