This SAE Standard sets forth the procedures to be used in measuring sound levels and determining the time weighted sound level at the operator's station(s) of specified off-road self-propelled work machines. This document applies to the following work machines which have operator stations as specified in SAE J1116:
• Crawler Loader
• Grader
• Log Skidder
• Wheel Loader
• Crawler Tractor with Dozer
• Pipelayer
• Dumper
• Wheel Tractor with Dozer
• Trencher
• Tractor Scraper
• Backhoe
• Sweeper
• Roller/Compactor
• Hydraulic Excavator
• Pad Foot Wheel Compactor with Dozer
• Excavator and Wheel Feller-Buncher
The instrumentation requirements and specific work cycles for these machines are described. The method used to calculate the time weighted average sound level at the operator station(s) is specified for Leq(5), or optional exchange rates, during continuous operation in a work cycle representing continuous medium to heavy work. The work cycles provide a repeatable reproduceable means to uniformly measure working machines against a “yard stick. A method to relate the time weighted average sound level at the operator station(s) to estimate operator sound exposure with part load work, supervision, and rest breaks is also provided.
Rationale
SAE J1166 has been reaffirmed to comply with the SAE Five-Year Review policy.
OPTC3 addresses standards related to sounds, lighting and marking for off-road, self-propelled work machines, and equipment. This committee reports to ConAg Council through OPTC. ConAg Council covers machines described in SAE J1116 which includes machines defined in ISO 6165, ISO 6814, and ISO 22242, with regards to activities supporting; • Creating consensus SAE standards, recommended practices, and information reports • Harmonizing relevant SAE documents with ISO documents • Assisting the US with the creation and maintenance of ISO standards through US TAGs o ISO/TC 127 --- Earth-moving machinery o ISO/TC 195 --- Building construction machinery and equipment o ISO/TC 23/SC 15 --- Machinery for forestry Participants in this committee include OEMs, suppliers, consulting firms, government, and others across the construction and forestry industries.
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Sound Measurement—Off-Road Self-Propelled Work Machines Operator-Work Cycle
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Sound Measurement—Off-Road Self-Propelled Work Machines Operator-Work Cycle
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