Detail of GB/T 20455-2023

Introduction of GB/T 20455-2023

GB/T 20455-2023 Forwarders - Terms, definitions and specifications 1 Scope This International Standard specifies terminology and required information as a general framework for identifying and describing the main dimensions and features of wheeled forwarders. It is applicable to articulated wheeled forwarders (as defined in ISO 6814, a forwarder is a self-propelled machine designed to move trees or parts of trees by carrying them). 2 Normative references There are no normative references in this document. 3 Terms and definitions 3.1 Basic definitions 3.1.1 front defined for the primary direction of the travel; the primary driving direction 3.1.2 rear defined for the primary direction of the travel; the opposite front (2.1.1) Note: Wherein the load space is in the rear of the machine. 3.1.3 right hand side operator’s right hand side when driving in the primary driving direction and with the machine in its primary functional mode 3.1.4 left hand side opposite side of the machine to the right hand side (3.1.3) 3.1.5 ground reference plane; GRP hard, flat, horizontal surface on which the machine is placed for measurements 3.2 Masses Note 1: Adapted from ISO 6016. Note 2: Masses are expressed in kilograms. 3.2.1 operating mass; OM mass of the base machine with equipment and empty attachment as specified by the manufacturer, and with the operator (75 kg), full fuel tank and all fluid systems at the levels specified by the manufacturer 3.2.2 rated paymass; PM; rated payload manufacturer’s rated mass that can be carried by the machine 3.2.3 gross machinery mass; GMM combined mass of the operating mass (OM) (3.2.1) of the machine and the rated paymass (PM) (3.2.2) 3.2.4 axle distribution of masses of wheeled machines load on each axle at operating mass (OM) (3.2.1) Note: See 3.2.1. 3.2.4.1 axle load load on each axle at operating mass (OM) (3.2.1) 3.2.4.2 maximum permissible axle load maximum load on each axle specified by the manufacturer 3.2.5 shipping mass; SM mass of the base machine without an operator, and with fuel level at 10 % of tank capacity, all fluid systems at their levels specified by the manufacturer and with or without equipment, attachment, cab, canopy, ROPS and/or FOPS, wheels and counterweights as stated by the manufacturer Note: If the machine has to be disassembled for shipping purposes, the masses of these dismounted components shall be stated by the manufacturer. 3.2.6 cab mass mass of a cab with all its components and the moorings required to secure it to the base machine 3.2.7 canopy mass mass of a canopy with all its components and the moorings required to secure it to the base machine 3.2.8 ROPS mass mass of an ROPS with all its components and the moorings required to secure it to the base machine 3.2.9 FOPS mass mass of an FOPS with all its components and the moorings required to secure it to the base machine 3.3 Main machine dimensions 3.3.1 total frame length l1 horizontal distance between the vertical planes perpendicular to the longitudinal axis passing through the farthest points on the front and rear frame of the machine, blade and loader excluded Note: See Figure 1. 3.3.2 overall length l2 horizontal distance from a vertical plane touching the forward-most point of the machine, blade positioned to give maximum forward reach (if so equipped), to a vertical plane touching the rearmost point of the machine, loader excluded Note: See Figure 1. 3.3.3 wheelbase l3 horizontal distance from the centre of the front axle or front bogie axle assembly to the centre of the rear axle or rear bogie axle assembly when both axles are perpendicular to the longitudinal axis Note: See Figure 1. 3.3.4 articulation joint to maximum blade arc l4 horizontal distance from the centreline of the articulation joint to a vertical line tangent to the arc of the blade’s lower edge as it passes from its maximum height h4 to the lowest blade position h5 (3.3.12) Note: See Figure 1. 3.3.5 articulation joint to front of machine l5 horizontal distance from the centreline of the articulation joint to a vertical plane touching the farthest point forward, blade excluded Note: See Figure 1. 3.3.6 articulation joint to front axle l6 horizontal distance from the centreline of the articulation joint to the centre of the front axle or front bogie axle assembly Note: See Figure 1. 3.3.7 overall height h1 horizontal distance from the centreline of the articulation joint to the centre of the front axle or front bogie axle assembly Note: See Figure 1. 3.3.8 operator cab overall height h2 height of the operator cab frame with rigid attachments Note: See Figure 1. 3.3.9 blade height h3 vertical distance from the lower edge, resting on the GRP (3.1.5), to the top of the blade, decking lugs excluded

Contents of GB/T 20455-2023