AS ISO 22915.1:2018 pdf free.Industrial trucks—Verification of stability Part 1: General.
4 Stability tests for trucks
4.1 Test procedure
Truck stability shall be verified by means of one of the procedures described below.
The truck is considered stable if it passes all tests without tip-over or meets the requirements by calculation.
When comparing calculated and test values, the test values are considered the true measure of stability.
4.2 Verification procedure
4.2.1 Operation of the tilt table and test criteria
The truck shall be placed on the tilt table under the conditions specified in the relevant part of Iso 22915. In each of these tests, the tilt table shall be tilted smoothly to the slope indicated.
The truck shall not tip-over when the required tilt table slope is attained for all the specified tests.
It is permissible that one or more wheels leave the tilt table or parts of the truck frame contact the tilt table except for trucks designed to handle freight containers 6 m (20 ft) length and above. If this occurs, the truck shall be allowed to seek its new stable position or to tip-over with no external restraint.
The means for preventing tip-over shall impose no appreciable restriction on the truck until the tip- over instant occurs.
4.2.2 Calculation
Compliance with the specified stability values can be determined by calculation.
Calculation shall be based on empirical data for similar trucks.
Such calculations shall take into account manufacturing variations and deflections of mast, tyres, etc.
4.2.3 Other methods
Other methods for verifying the stability that give the same result are allowed, e.g. fixed slope.
4.3 Test conditions
4.3.1 Condition of the truck
The tests shall be carried out on an operational truck.
The weight of the operator on sit-on and stand-on trucks shall be simulated by an object having a mass of 98 kg, and in accordance with ISO 3411, if the stability during a test is thereby decreased. For a truck designed for operation with a stand-on operator, the centre of gravity of the object shall be secured 1 000 mm above the floor of the operator’s platform at the centre of the position normally occupied by the operator. For a truck designed for operation with a sit-on operator, the centre of gravity of the object shall be secured 150 mm above the seat index point (SIP) as determined in accordance with ISO 5353 with the seat at the mid-point of the adjustment, if provided.AS ISO 22915.1 pdf download.