AS ISO 6015 pdf download

AS ISO 6015 pdf download.Earth-moving machinery — Hydraulic excavators and backhoe loaders — Methods of determining tool forces
3  Terms and definitions
For the purposes of this document, the following terms and definitions apply. 3.1 tool force force generated at the bucket lip or cutting edge, but not at the tips of the teeth, when operating the bucket or arm cylinders independently 3.2 arm cylinder tool force force generated at the bucket lip with the arm cylinder positioned to provide a rotating moment around the arm pivot Note 1 to entry: The bucket lip moves towards the base machine when hoe equipment is used. 3.3 arm cylinder tool force at level crowd 〈shovel equipment〉 horizontal arm cylinder tool force generated by the arm cylinder at the bucket lip when the bucket”s attitude is level and maintained parallel to the ground line and the lip is at the ground line 3.4 bucket cylinder tool force tool force generated at the bucket lip with the bucket cylinder(s) positioned to provide a rotating moment to the bucket around its pivot Note 1 to entry: The bucket lip moves towards the base machine when hoe equipment is used and away from it when shovel equipment is used. 3.5 crowd tool force 〈hydraulic excavators with telescoping boom〉 tool force generated at the bucket lip when the telescoping boom is retracted 3.6 rated tool force tool force, measured or calculated, that the manufacturer publishes 3.7 actual tool force measured tool force generated at the bucket without tipping or sliding occurring 3.8 maximum [arm cylinder] [bucket cylinder] [crowd] tool force largest measured or calculated tool force 3.9 grab [clamshell] closing force force generated between the grab [clamshell] cutting edges or teeth tips when closing 3.10 maximum grab [clamshell] closing force largest measured or calculated grab [clamshell] closing force 3.11 arm force radius A radius of the arc that passes through the bucket lip and whose centre is located at the arm pivot Note 1 to entry: See Figure 5 3.12 bucket force radius B radius of the arc that passes through the bucket lip and whose centre is located at the bucket pivot Note 1 to entry: See Figure 6 3.13 grab [clamshell] force radius C radius of the arc that passes through the grab or clamshell lip and whose centre is located at the grab or clamshell pivot Note 1 to entry: See Figure 7 3.14 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 [SOURCE: ISO 6016:1998, definition 3.2.1]3.15 working circuit hydraulic pressure normal operating pressure applied to the specific circuit by the pump(s) 3.16 maximum relief circuit hydraulic pressure maximum static pressure in a specific circuit limited by a relief valve at a flow no greater than 10% of the rated circuit flow 3.17 hydraulic limit condition when the tool forces are limited by maximum relief circuit pressure 3.18 tipping limit condition when the tool forces are limited by the onset of tipping of the machine 3.19 slipping limit condition when the tool forces are limited by the machine slipping on the test surface
4  Measurement methods
4.1  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.