ISO 8812 pdf download.Earth-moving machinery — Backhoe loaders — Definitions and commercial specifications
1 Scope
This International Standard establishes terminology and the content of commercial literature specifications for self- propelled crawler or wheeled backhoe loaders and their equipment. This International Standard is applicable to backhoe loaders as defined in 3.1. It is not applicable to loaders equipped with a backhoe attachment in accordance with ISO 71 31 :1 997, 3.3.1 .
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 3450:1 996, Earth-moving machinery — Braking systems of rubber-tyred machines — Systems and performance requirements and test procedures. ISO 4250-1 :1 996, Earth-mover tyres and rims — Part 1 : Tyre designation and dimensions. ISO 4250-2:1 995, Earth-mover tyres and rims — Part 2: Loads and inflation pressures. ISO 4250-3:1 997, Earth-mover tyres and rims — Part 3: Rims. ISO 501 0: 1 992, Earth-moving machinery — Rubber-tyred machines — Steering requirements. ISO 601 4:1 986, Earth-moving machinery — Determination of ground speed. ISO 601 5:1 989, Earth-moving machinery — Hydraulic excavators — Methods of measuring tool forces. ISO 601 6:1 998, Earth-moving machinery — Methods of measuring the masses of whole machines, their attachments and components. ISO 61 65:1 997, Earth-moving machinery — Basic types — Vocabulary. ISO 6746-1 :1 987, Earth-moving machinery — Definitions of dimensions and symbols — Part 1 : Base machine.
3 General definitions
See also ISO 61 65. 3.1 backhoe loader self propelled crawler or wheeled machine, having a main frame designed to carry both front-mounted equipment and rear-mounted backhoe equipment (normally with outriggers); when used in the backhoe mode, the machine is stationary and normally digs below ground level; when used in the loader mode (bucket use), the machine loads through forward motion NOTE 1 A backhoe work cycle normally comprises excavating, elevating, swinging, and discharging material. A loader work cycle normally comprises filling, elevating, transporting, and discharging material. NOTE 2 Backhoe loader directional references: the terms right, left, front or rear are determined from the operator’s position when seated in the travelling direction stated by the manufacturer. 3.2 base machine machine with, if required, cab, canopy and operator-protective structures, without equipment or attachments, but including the mountings necessary to connect equipment or attachments NOTE For the purposes of this International Standard, the base machine of a backhoe loader includes equipment and attachments. 3.3 equipment set of components mounted onto the base machine which allow an attachment to perform its primary design function 3.4 optional equipment optional items of equipment mounted onto the base machine to increase, for example, capacity, flexibility, comfort and safety 3.5 attachment (tool) assembly of components that can be mounted onto the base machine or equipment for specific use 3.6 component part, or an assembly of parts, of a base machine, equipment or attachment
4 Base machine
4.1 Types of backhoe loaders 4.1.1 Side-shift backhoe See Figure 1 . 4.1.2 Centre pivot backhoe See Figure 2. 4.1.3 Drive and steering system 4.1.3.1 Rigid frame, front wheel steer, rear wheel drive See Figure 3. 4.1.3.2 Rigid frame, front/all wheel steer, all wheel drive See Figure 4. 4.1.3.3 Articulated steering, rear wheel drive See Figure 5. 4.1.3.4 Articulated steering, all wheel drive See Figure 6.