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The purpose of this report is to record the activities and recommendations of the Ride Meter Task Force assigned by the chairman of the SAE Joint Seating Subcommittee to determine availability of instrumentation to measure operator ride on mobile equipment. The desired characteristics of the meter included relatively low cost, easy to operate, highly portable, and sufficiently rugged to withstand the vibration levels encountered on agricultural or construction machines. It is recognized that a ride meter type instrument with a single numerical output provides only approximate indication of ride vibration quality, but is useful for general field evaluation or overall ride comparisons. A narrow band analysis of the vibration frequency spectrum is recommended for more accurate and complete results.

The task force was assigned responsibility for the following activities: 1 Formulate a recommendation for an acceptable ride meter including features, functional performance, and design specifications. 2 Conduct a survey to determine if there is a commercially available ride meter conforming to the recommendation. 3 If an acceptable ride meter is not commercially available, work with an electronics supplier to initiate a design and build a working prototype of a meter conforming to the recommendation.

In the main body of this recommendation, conditions are defined for measuring and recording whole body vibration of the seated operator of off-highway self-propelled work machines. The specification of instruments, analytic methods, and description of site and operating conditions allows the measurements to be made and reported with an acceptable precision. The procedure includes means of weighting the vibration level at different frequencies as specified in ISO 2631 (Ref. 1). A standard format for reporting spectral data is recommended. The definitions, instruments, and analytic methods also apply to simulated tests for operator vibration as performed in laboratories. This procedure is a measuring method only and is not intended for the evaluation or selection of seating systems.

This SAE Standard defines a method for the measurement of the whole body vibration to which the seated operator of off-highway self-propelled work machines is exposed while performing an actual or simulated operation. It applies to vibration transmitted to the operator through the seat. There are no equivalent ISO Standards.

This SAE Standard defines a method for the measurement of the whole body vibration to which the seated operator of off-highway self-propelled work machines is exposed while performing an actual or simulated operation. It applies to vibration transmitted to the operator through the seat. There are not equivalent ISO Standards. In the main body of this document, conditions are defined for measuring and recording whole body vibration of the seated operator of off-highway self-propelled work machines. The specification of instruments, analytic methods, and description of site and operating conditions allows the measurements to be made and reported with an acceptable precision. The procedure includes means of weighing the vibration level at different frequencies as specified in ISO2631. A standard format for reporting spectral data is recommended. The definitions, instruments, and analytic methods also apply to simulated tests for operator vibration as performed in laboratories.

This SAE Standard provides a method to obtain consistent force-deflection data of finished (or unfinished, when specified) cushioned components of seats for off-road work machines as listed in SAE J1116. This data may be helpful in maintaining seat comfort characteristics and quality control. There is no intent to establish any acceptance criteria.

This SAE Standard provides a method to obtain consistent force-deflection data of finished (or unfinished, when specified) cushioned components of seats for off-road work machines as listed in SAE J1116. This data may be helpful in maintaining seat comfort characteristics and quality control. There is no intent to establish any acceptance criteria.

This SAE Standard provides a method to obtain consistent force-deflection data of finished (or unfinished, when specified) cushioned components of seats for off-road work machines as listed in SAE J1116. This data may be helpful in maintaining seat comfort characteristics and quality control. There is no intent to establish any acceptance criteria.

This SAE Standard provides a method to obtain consistent force-deflection data of finished (or unfinished, when specified) cushioned components of seats for off-road work machines as listed in SAE J1116. This data may be helpful in maintaining seat comfort characteristics and quality control. There is no intent to establish any acceptance criteria.

This SAE Standard describes a procedure for the evaluation of operator seats which may be fitted to agricultural wheeled tractors per SAE J1150 and/or earthmoving machines per SAE J1057. This procedure evaluates only the vertical vibration performance and should not be considered a comprehensive seat evaluation procedure.

This recommendation applies to operator seats which may be fitted to agricultural wheeled tractors per SAE J1150 (December 1976) and/or earthmoving machines per SAE J1057 JUN81. Agricultural wheeled tractors and earthmoving machines having similar vibration spectra are grouped into defined classes with corresponding test vibration input spectra defined for each class in SAE J1385 and SAE XJ1386.1 Performance for all applications within a defined class requires tests with subjects of specified weights. The specified power spectral density at the seat mounting base defines the response required from the vibration test stand during a given laboratory seat test.

This SAE Standard describes a procedure for the evaluation of operator seats which may be fitted to agricultural wheeled tractors per SAE J1150 and/or earthmoving machines per SAE J1057. This procedure evaluates only the vertical vibration performance and should not be considered a comprehensive seat evaluation procedure.

For off-road work machines as listed in SAE J1116.

For off-road work machines as listed in SAE J1116.

For off-road work machines listed in SAE J1116.

For off-road work machines listed in SAE J1116.

For off-road work machines as listed in SAE J1116.

For off-road work machines including construction, agricultural, and forestry as listed in SAE J1057a, J1150, and J1209.

This recommended practice establishes procedures for determining seat location relative to basic datum points or planes on agricultural and construction machines. Alternate procedures are specified including an H-Point procedure to evaluate compliance with standards or regulations related to the H-Point, determined with the device specified in SAE J826b and a Seat Index Point (SIP) procedure to provide for use of a simplified device. When a specific procedure is not designated, the H-Point and SIP are equivalent and can be used interchangeably within normal measurement tolerances.