AS ISO 14397.1 pdf download

AS ISO 14397.1 pdf download.Earth-moving machinery — Loaders and backhoe loaders
1  Scope
This part of ISO 14397 specifies the means for determining the rated operating capacity of wheeled or crawler loaders or of the loader portion of backhoe loaders, having buckets and material handling forks, as defined in ISO 6165. It gives standard methods for the calculation and test verification of the tipping load (mass). It is applicable only to the use of buckets and forks on loaders. NOTE  Certain attachments can exceed the normal operating capacity and will require restricted machine operating conditions, such as reduced machine speed or limited lifting height. Refer to the attachment manufacturer’s instructions for the intended use of the attachment.
3  Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 6165 and ISO 6746‑1, and the following, apply. 3.1 rated operating capacity N calculated value, in kilograms, representing normal loading under typical operating conditions 3.2 tipping load at maximum reach m tip minimum mass, in kilograms, that, when placed in the loader bucket or on forks at maximum moment arm position, will cause the loader to achieve the tipping limit condition in its least stable configuration, with the loader placed on a hard, level surface and the resultant force acting vertically through the centroid of the rated bucket volume as specified in ISO 7546 or the fork load centre as specified in 5.2.6 and shown in Figure 1 3.3 lift capacity to maximum height m lift mass, in kilograms, which can be lifted from the ground to maximum height using the lift cylinder or cylinders at hydraulic circuit working pressure, with the bucket positioned to hold the maximum load or the forks positioned horizontally, and with the resultant force acting vertically through the centroid of the rated bucket volume as specified in ISO 7546 or the fork load centre as specified in 5.2.6 and shown in Figure 1 Note 1 to entry: See also ISO 14397‑2. 3.4 maximum moment arm n maximum horizontal distance from the load centre of gravity to the tipping line when the bucket is positioned to hold the maximum load or the forks are positioned horizontally See Figures 2 to 8. 3.5 tipping limit condition 〈wheeled loaders〉 condition in which at least one of the wheels farthest from the tipping line no longer touches the ground 3.6 tipping limit condition 〈crawlers with rigid frame suspension〉 condition when the front track rollers no longer touch the track Note 1 to entry: For other types of suspension, the tipping limit condition is as specified by the manufacturer. 3.7 tipping line line about which the loader tips See Figures 2 to 8.3.8 operating mass 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 3.9 hydraulic circuit working pressure pressure applied to the specific hydraulic lifting circuit by the hydraulic pump or pumps 3.10 swing loader loader having a swing type lift arm which can rotate to the left and right of the straight position 3.11 stability factors k factors accounting for the effects of the operating surface and of the dynamic forces caused by travel speed, tyre deflection, etc., used in rated operating capacity calculation
5.2  Loader configurations
5.2.1  General The loader shall be the standard version specified by the manufacturer. If the tipping load is determined under specific conditions — as is the case with additional counterweights, ripper, backhoe or tyre ballast — then these conditions shall be specified in the operator’s manual and advertising literature so that the stable operating conditions are clearly defined. The backhoe portion of backhoe loaders shall be in the transport position, as specified by the manufacturer. The tipping loads used in manuals or advertising shall specify the operating conditions and configurations including tyre inflation upon which the tipping load (mass) ratings are based. 5.2.2  Rigid-frame type Rigid-frame wheeled loaders and backhoe loaders with steered wheels shall be in the straight-ahead position (see Figures 2 and 4). 5.2.3  Articulated-frame type Articulated-frame wheeled loaders and backhoe loaders shall be positioned with the frames both straight and fully articulated to the right and left (see Figure 3). 5.2.4  Swing-arm type Swing‑arm type wheeled loaders shall be turned in the most unstable position, as specified by the manufacturer (see Figures 5 and 6). 5.2.5  Bucket applications The bucket shall be positioned to provide the maximum moment arm, as shown in Figures 2 to 7.