Domain 4: Manufacturers’ Load Charts

(approximately 25% of the test)

1. Know the terminology necessary to use load charts.
2. Know how to ensure that the load chart is the appropriate chart for the machine in its particular application.
3. Know how to use load charts. This includes knowing:
   (a) the operational limitations of load charts and footnotes
   (b) how to relate the chart to the configuration of the crane, crawlers, or outriggers extended or retracted, jib erected or offset, and various counterweight configurations
   (c) the difference between structural capacity and capacity limited by stability
   (d) what is included in load chart capacity
   (e) the range diagram and its relationship to the load chart
   (f) the work area chart and its relationship to the load chart
   (g) where to find and how to use the “parts-of line” information
4. Know how to use the load chart together with the load indicators and/or load moment devices.