ISO 11661-2022 pdf free download – Mobile cranes — Presentation of rated capacity charts.
4.1 General
The crane rating manual shall be supplied with each crane and be available to the operator when at thecontrols. The crane rating manual may be in electronic or physical form such as paper, plastic or metal.When electronic form is supplied, an alternative method for referencing the crane rating manual shallbe supplied with the crane and shall be available to the crane operator for when the electronic systemis not functional.
4.2Content of manual
4.2.1 Boom extend modes and configurations
The crane rating manual shall contain information necessary to identify and arrange the boom extendmode configuration for each rated capacity chart. For cranes with only one boom extend mode, this canbe omitted.
4.2.2Counterweight configuration
The crane rating manual shall contain information necessary to identify and arrange the requiredcounterweight configuration for each rated capacity chart. For cranes with only a fixed counterweight(CTWT), this can be omitted.
4.2.3Auxiliary equipment mass table
The crane rating manual shall include a table consisting of the equivalent deductions for all auxiliaryequipment that can be installed on the boom. When such equipment is installed, instructions shall beprovided if these tabulated values are to be subtracted from the rated capacities in the rated capacitychart to determine the net available capacity.This table can be either at one place within the manual orincluded with each applicable rated capacity chart.
Auxiliary equipment is any equipment provided by the manufacturer with an individual crane that canbe installed onto the crane except via the load hoist line (e.g. jibs).Equipment that is attached via theload hoist line, such as hook blocks, shall be considered as part of the load subtracted from the printedcapacities on the chart.Illustrations, where deemed necessary, should accompany the mass table.
4.2.4Working range diagrams
The crane rating manual shall include a working range diagram for each main configuration asdetermined by the manufacturer (see Example A.3). The diagram can be located at one place withinthe manual or as a corresponding diagram with each rated capacity chart on the opposite facing page.For simple cranes, where all unloaded boom instability areas can be clearly shown on a single workingrange diagram, it may be separately mounted and not included in the manual.
4.2.5 Forward stability
lf forward stability limitations exist for any configuration in an unloaded condition, these limitationsshall be clearly defined along with any requirements.An unloaded condition at a given boom length/angle is a condition where only the heaviest load block (e.g. hook block, overhaul ball) specified by themanufacturer for the specific machine is attached to the crane via the load hoist line.
4.2.6Backward stability
lf backward stability limitations exist for any configuration, these limitations shall be clearly definedon the working range diagram or on the specific rated capacity chart.
4.2.7Working area diagram
The crane rating manual shall include a working area diagram for which rating capacities apply.Theworking area diagram can be either at one place within the manual or included with each applicablerated capacity chart (see Example A.4).
4.2.8 Notes
Set-up, operational information and definitions shall be provided to explain any terminology orspecifications associated with the rated capacity charts presented. These are to be included at onelocation in the manual, unless warning notes related to a specific configuration are to be included onthe same page or in the same section as the chart.
Notes, where used, shall be subdivided into informational data, warnings and definitions. Warningsshall be further subdivided into general, set-up and operational.
4.2.9 Maximum outrigger reaction
The maximum outrigger reaction that can occur when utilizing the crane shall be identified.
5Rated capacity chart
5.1Data required
5.1.1The following is a list of the minimum information to be included on each rated capacity chart:a) crane manufacturer’s model to which the ratings apply;
b) counterweight(s)required for use with the ratings (non-removable counterweight information
need not be included);
c)boom or boom/jib combination for which ratings apply;
d) crane supportconfiguration for which ratings apply, i.e.on crawlers, outriggers or tires. For variable
support base positions, each rating chart shall identify the required outrigger base dimensions;e)slew area definition for which ratings apply, i.e.360°, over rear or other slew range;
f)any special restrictions unique to the use of the rating chart;
g) boom extend mode for which ratings apply.
5.1.2 Each rated capacity chart shall include all the information listed in 5.1.1. The format forpresentation of the information can vary provided the information is clear and consistently presentedto the operator for every rated capacity chart in the crane rating manual.Methods of presenting therequired capacity information are presented in Annex A.ISO 11661 pdf download.