Manitowoc Grove RT600E Operator's Manual page 26

SAFETY PRECAUTIONS
NOTE: This condition is limited to operation with the main
boom on fully extended outriggers only.
c) If V(z) is > 20.1 m/s (45 mph), then lifting is NOT
permitted. Cease lifting operations and lower and retract
the boom.
2-8
In both cases a) and b) above, the lift may also be limited by
the projected wind area of the load Ap and by the wind drag
coefficient Cd: This limit can be determined by comparing
the Actual wind resistance area with the Allowable wind
resistance area.
Refer to Figure 2-1 for a simplified calculation method to
determine permissible wind speed.
Published 05-02-2018 Control # 088-10
RT600E OPERATOR MANUAL