ISO 10968:2020 pdf download – Earth-moving machinery —Operator’s controls.
4.5 Pedals
The surface of pedals shall be slip-resistant.
5 Movement of controls
5.1 General
5.1.1 The type, location and method of operation of typical primary controls shall be according to Ann&A for base machine movements, according to AnnexB for equipment movements, and according to Anue for attachment movements. Specific requirements for graders are found in Anncxl). Specific requirements for dozers are found in Annex E. Primary controls for equipment not otherwise specified shall follow the same principles as given by AnnexB. Primary controls for attachment not otherwise specified shall follow the same principles as given by AnncxC.
5.1.2 The movement of the controLs In relation to their neutral position shall be in the same general direction as the machine response, unless the combining of controls or customary usage dictates otherwise (e.g. driving control of machines where the operator’s position is located on the part of the machine that can swing, such as the upper structure of an excavator).
5.1.3 If a machine Is equipped with an alternative operator’s position with duplicated control arrangements, then bath sets of controls shall operate in the same manner. When one set of controls is active, the other set shall he inactive. The active set shall be clearly identified with a visual indicator. An exception would be for mechanically connected dual controls (e.g duplicate steering wheels, duplicated propulsion controls) where all controls are continuously active.
5.1.4 All controls shall return to their neutral position when the operator releases the control, unless the control has a detent or hold position for continuous activation.
5.1.5 For foot-operated controls where the pedal is operated in two directions (treadle pedal), for example, downward motion of the front of the pedal and downward motion of the rear of the pedal, the pedal shall pivot tinder the operator’s foot and shall remain at rest in the neutral position.
5.1.6 The controls shall be so arranged or deactivated or guarded that they cannot be activated unintentionally — In particular for example, when the operator is getting into or out of the operator’s station according to the manufacturer’s Instructions.
5.1.7 The controls shall be arranged so as not to create a tripping hazard when the operator is getting into or out of the operator’s station according to the manufacturer’s instructions.
5.1.8 Forgear/drive/speed selection controls the shifting pattern shall be clearly marked. In particular, the neutral position shall he clearly identified.
5.1.9 The identification symbols shall be on the controls or next to them. If space limitations dictate, a diagram, clearly visible to the operator, showing the primary controls is acceptable.
5.1.10 Graphical symbols shall be in accordance with ISO 6405-1 and 150 6405-2.
5.2 Multifunction controls
5.2.1 General
In the case of a multifunction control used to control the operations of the base machine, equipment or attachments, either separately or in combination, the following applies in addition to 5.1.
5.2.3 Machine responses to control change-over
Changing the machine response to a multifunction control movement to another primary (unction (see AnnexeiA. and C) is permissible if a control mechanism label or visual indicator is provided to inform the operator of the control movements and the machine responses in the basic and change-over positions. There shall be no hazardous movements during control change-over.
S.2.4 Additional controls located at a multifunction control
Additional control mechanisms (e.g. dials, switches) may be located on a multifunction control to actuate either primary or secondary controls. The control device for the additional control mechanisms and the response shall be indicated by a label or visual indicator.
6 Control actuating forces
6.1 The maximum control actuating force required to actuate a control shall not exceed the forces specified In Table 2.
6.2 The minimum control actuating force shall prevent activation of the control due to inertial forces on the control caused by machine operation (e.g. machine acceleration/deceleration, vibration) when used as intended.
6.3 The control actuating forces given in Table 2 do not apply to braking. The maximum control actuating forces for brake systems shall be in accordance with ISO 3450. ISO 10265 and ISO 17063. as applicable.
6.4 The control actuating forces given in Thh1e.2 do not apply to steering wheels. Control actuating forces for steering wheels shall be In accordance with ISO 50 10.
6.5 The minimum strength of the control shall be sufficient to withstand at least five times the control actuating force that the control was designed for without sustaining permanent damage (e.g. deformation, fracture) or having its primary function impeded.