AS ISO 22915.1 pdf download – Industrial trucks- Verification of stability Part 1: General.
2 Normative references
The following referenced documents are indispensable for the application of this documeni For dated references, only the ed.t.on ated applles For undated references, the latest editIon of the referenced document (Including any amendments) applies.
ISO 3411. Earth-moving machinery — Physical dimensions of operators and minimum operator space envelope
ISO 5053. Powered lndusbtal trucks — Terminology
ISO 5353. Earth-moving machinery, and tractors and machinery for agrfcuture and forestry — Seat index
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3 Terms and definitions
For the purposes of this document, the blowing terms and definitions apply.
3.1
no’nial operating conditions
tYUCkS other than variable reach and rough-terrain trucks operating conditions corresponding to
a) stacking with fork arms reasonably horizontal on substantially firm, smooth. level, and prepared surfaces. b) operating with a load centre of gravity approximately on the longitudinal centre plane of the truck,
C) travelling with the mast or fork arms tilted rearward, It possible, and the load io the lowered (travel) position on substantially firm, smooth, level, and prepared surface; for readi trucks, with 1h mast or forks fully retracted,
d) travelling or manoeuvflng with elevated loadioperatcw (if the truck is specifically designed for this condition)
3.2
normal operating conditions
çvariable reach and rough-terrain trucks: operating conditions corresponding to
a) stacking with a combination of boom elevat.onlextens,on and the fork arms reasonably horizontal on substantially firm smooth, level and prepared surfaces.
b) operating with the load centre of gravity approximately on the longitudinal centre plane of the truck.
c) trucks with a mast, manoeuvring an elevated load with the mast neither tilted rearwards more than 10 nor the centre of avity of the load displaced rearwards more than 600 mm.
d) manoeuvrlng an elevated load with the fork arms tilted rearwarcis,
e) rough-terrain trucks travelling with the mast or fork arms tilted rearwards and the load in the lowered (travelling) position on unimproved natural terrain and disturbed-terrain areas: tiere applicable, any reachingftelescopic mechanism is to be fully retracted
4.4 Safety precautions for testing
Precautions shall be taken to prevent the lip-over of the truck or displacement of the test load during the course of the test.
a) Complete Lip-over of the truck shall be prevented by:
— wire ropes, straps or chaans:
— overhead crane;
— other means.
b) Displacement of the test load shall be prevented by means such as:
firmly securing the test load to the load carrier or equivalent structure;
— suspending the test load near the ground from an appropriate support placed on the fork arms so that the suspension point is at the point where the centre of gravity, G, of the test load would be if the test load were to be placed on the fork.
4.5 Stability verification for trucks with attachments
Trucks fitted wtth attachments other than fork arms shall be subject to the same stability tests. If the centre of gravity Is substantially dp1aced. additional tests may be required (see other parts of iso 22915). For verification of the vertical position of the mast, a reference point having a fixed relationship to the centre of gravity. 6, of the test load shall be chosen (see Figure 4).
The test load shall be equivalent to the actual capacity at the specified load centre distance indicated for the attachment when used on the truck being tested.
On attachments that are not fitted with fork arms, the lift height specified for the tests shall be measured between the tilt table surface and the underside of the load, or the attachment, whichever is lower.
AS ISO 22915.1 pdf download – Industrial trucks- Verification of stability Part 1: General
