AS ISO 6015:2021 pdf free.Earth-moving machinery一Hydraulic excavators and backhoe loaders一Methods of determining tool forces.
4 Measurement methods
41 Test site and general
The test site shall consist of a level, hard surface, with anchor points and space for using the measuring devices specified in 4.2.1 to 4.2.3. For measurements made below the ground plane, a space below that plane is required for acceptance of the machine tool and the measurement devices, the anchorage and any auxiliary equipment.
All measurements shall be accurate to within ± 2 % or shall accord with an International Standard relative to test equipment accuracy.
In the preferred method, the force to be measured is applied directly to the force measuring device (4.2.1). If the force is applied via a pulley, its friction should be taken into account. The wire rope (4.2.4) should be as short as possible to minimize the affect on accuracy.
4.2 Test apparatus
4.2.1 Force measuring device, of accuracy according to Iso 9248.
4.2.2 Hydraulic oil pressure measuring device, of accuracy according to ISO 9248.
4.2.3 Instrument(s) for measuring linear dimensions, of accuracy according to ISO 9248.
4.2.4 Wire ropes and shackles, pulley, safety chains and adjustable supporting frames.
4.3 Preparation for testing
The machine shall be equipped according to ISO 6016.
The machine shall be fitted with the bucket, grab or clamshell and appropriate counterweights, and shall have the tyre pressure, and tyre ballast or track tension as specified by the manufacturer. The hoe, shovel, grab or clamshell equipment for each test shall be as specified by the manufacturer.
4.8.2 Arm cylinder tool force
4.8.2.1 Hoe equipment
Measure this tool force tangential to the arc described by the bucket lip about the arm pivot. Position the load cell (4.2.1) such that it is placed in tension, as shown in Figure 1 a).
For the maximum tool force, the working circuit hydraulic pressure shall be at maximum and the bucket positioned for maximum bucket cylinder tool force so as to produce the maximum rotating moment about the arm pivot.
4.8.2.2 Shovel equipment
Measure this tool force tangential to the arc described by the bucket lip about the arm pivot. Position the load measurement device such that it is placed in tension as shown in Figure 1 b).
The bucket lip shall move away from the base machine. See Figure 1 b).
Position the bucket for maximum bucket cylinder tool force so as to have a minimum distance between the bucket lip and the arm pivot.AS ISO 6015 pdf download.