AS 22915.9:2018 pdf free.Industrial trucks- Verification of stability Part 9: Counterbalanced trucks with mast handling freight containers of 6 m (20 ft) length and longer (ISO 22915-9:2014, MOD).
5.5 Test load
5.5.1 General
The test load shall consist of a load corresponding to the weight of the container and a load or force simulating the effect of the wind on the container.
5.5.2 Basic load
The test load shall be equivalent to a container 2,90 m (9 ft 6 in) high (see ISO 668). in either the laden or unladen condition, with a mass equivalent to the rated load as specified by the manufacturer, acting through its centre of gravity.
When using fork arms to handle containers, the test load shall act through the centre of gravity positioned 1 220 mm horizontally from the front face of the fork arm shank and at a height that corresponds to the midpoint of the height of a 2,90 m (9 ft 6 in) container.
When using top lift, side lift, or other load handling means, the position of the centre of gravity shall be determined by the connection points to the test load, e.g. twist locks into the corner fittings.
Where the load handling means can be adjusted laterally to the truck longitudinal centre line, ISO 22915-10 can apply.
Where the load handling means has positional adjustment capability in the direction of the truck longitudinal centre line, other than mast tilt, the tests shall be carried out at both extremes of adjustment.
5.5.3 WInd force
The effect of this force can be simulated in the tests by one or the other of the following methods:
a) applying this force normal to the lateral tipping axis of the truck horizontally through the load centre of gravity;
b) applying a vertical load, in addition to the test load, giving an equivalent moment to the wind force acting when the slope is at the required tilt angle as specified in the table of tests.
5.6 Lift height
5.6.1 Lift height for tests simulating stacking
Test 1 (see Table 1) shall be conducted with the horizontal position of the load datum point (e.g. point E) unchanged when elevated from its lowered position [see Figureaa), b) and c)j.
With the prescribed test load, set the mast vertical and perpendicular to the tilt table and then elevate to approximately 300 mm. Using the shank of the front face of the fork arm or load-engaging means. establish a point E [see Figure 3 a)], on the fork arms or load-engaging means having a fixed relationship to the centre of gravity of the test load. This point E shall be used to provide a reference datum F on the tilt table. When the mast is elevated, a new point Fl on the tilt table may occur [see Figure 3 b)]. By the following adjustments, this new point Fl can be returned to the original location of F [see Figure 3 c)].
Changes in the location of Fl shall be corrected by varying the tilt of the mast within the limits provided by the design of the truck.AS 22915.9 pdf download.