SAE J297-2002 Operator Controls on Industrial Equipment

Foreword-This Reaffirmed Document has been changed only to reflect the new SAE Technical Standards Board Format. Definitions changed to Section 3. All other sections numbers have changed accordingly.

1. Scope-This SAE Standard is intended to improve operator efficiency and convenience by providing guidelines for the uniformity of location and direction of motion of operator controls used on industrial wheeled equipment. The controls covered are those centrally located at the operator's normal position.
1.1 General-These guidelines are based on the principle that a given direction of movement of any control produces a consistent and expected effect.
1.2 Where confusion may result from the motion of the control, the effect from movement of the control shall be clearly and permanently identified.

2. References-There are no referenced publications specified herein.

3. Definitions
3.1 Industrial Wheeled Equipment-That class of tractors and associated equipment used in operations such as landscaping, construction services, loading, digging, grounds keeping, and highway maintenance.
3.2 Propelling Machines-Tractors or self-propelled units.
3.3 Towed, Semi-Mounted and Mounted Equipment-Equipment used in conjunction with propelling machines defined in 4.2.
3.4 Right-Hand, Left-Hand, and Forward Designations-Those related to the operator when siting in the operating position.

4. Brake Control
4.1 The brake pedal(s) shall be actuated by the operator's right foot with the direction of motion forward and/or downward for engagement. When traction control is not foot actuated, brakes may be operated by either foot.
4.2 When separate brake pedals are provided for the independent right-hand and left-hand brake control, it shall be possible to obtain combined and/or equalized control.

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还是不行哈，几份不够了

谢谢楼主