AS 22915.20 pdf download

AS 22915.20 pdf download.Industrial trucks—Verifcation of stability
1 Scope
ISO 22915 deals with the safety of industrial trucks, as defined in ISO 5053, relative to their stability and the verification of that stability. For the purposes of ISO 22915, industrial trucks are wheeled, self- propelled or pedestrian-propelled vehicles, excepting those running on rails. They are either operator- controlled or driverless and designed to carry, tow, push, lift, stack or tier in racks. This part of ISO 22915 specifies an additional test for verifying the stability of a laden truck whose utilization creates the special operating condition whereby the load centre of gravity is substantially offset from the truck’s longitudinal centre plane. It is applicable to the following types of truck: a] counterbalanced trucks, as specified in ISO 22915-2; b] reach (retractable mast or forks) and straddle trucks, as specified in ISO 22915-3; c) pallet stackers, as specified in ISO 22915-4; d] bidirectional and multidirectional (retractable mast or forks) trucks, as specified in ISO 22195-7; e) rough-terrain variable reach trucks ); f] counterbalanced trucks fitted with articulated steering 2); g) variable reach trucks 3); h) rough-terrain trucks with mast. A load is considered to be substantially offset if displaced by more than 100 mm, for a truck with a rated capacity < 5 000 kg, 150 mm, for a truck with a rated capacity≥5 000 kg and≤10 000 kg, 250 mm, for a truck with a rated capacity > 10 000 kg and < 20 000 kg, . 350 mm, for a truck with a rated capacity≥20 000 kg.
4 Test conditions
4.1 General See ISO 22915-1. 4.2 Position of truck on the tilt table8) 4.2.1 Counterbalanced trucks The position of the truck on the tilt table shall be in accordance with test 3 of ISO 22915-2. 4.2.2 Reach and straddle trucks The position of the truck on the tilt table shall be in accordance with test 3 of ISO 22915-3. 4.2.3 Pallet stackers The position of the truck on the tilt table shall be in accordance with test 3 of ISO 22915-4. 4.2.4 Bidirectional and multidirectional trucks The position of the truck on the tilt table shall be in accordance with test 3 of ISO 22915-7. . 4.3 Position of the load The centre of gravity of the load shall be offset laterally by the maximum amount it is anticipated will be encountered in actual operation. The test shall be conducted on the side on which the truck is least stable. The mast shall be retracted and tilted fully rearward where the design permits. The load shall be raised to the maximum elevation. If the manufacturer shows other possible ratings on the capacity plate (see Clause 6]), tests shall be carried out with maximum load at the corresponding height as well as with the load corresponding to the maximum height as agreed between the interested parties. 4.4 Tests for trucks with attachments Trucks with attachments shall be subjected to the foregoing stability tests, as appropriate. The test loads and their positioning shall be those specified on the capacity plate(s) of the truck equipped with the attachment when used under the special operating condition and in accordance with the manufacturer’s instructions. The lift heights required in the tests shall be measured between the surface of the tilt table and the underside of the load in its approved handling position or the underside of the load handling means, whichever is the smaller.
5 Verification of stability
The stability of the truck with the load fully offset and at maximum elevation shall be verified in accordance with test 3 of ISO 22915-2 and ISO 22915-3, tests 3 and 4 of ISO 22915-4 or test 4 for double stackers only, when carrying two loads, or test 8 of ISO 22915-7 9), depending on the type of truck.
6 Marking
The capacity under this special operating condition, as determined by this additional stability test, and the load offset shall be indicated on an information plate in view of the operator in the normal operating position according to ISO 3691-1.