AS NZS 62841.2.14:2016 pdf free
AS NZS 62841.2.14:2016 pdf free.Electric motor-operated hand-held tools,transportable tools and lawn and garden machinery – Safety
An overspeed test shall be made on a sample cutting head, equipped with blades for the largest cutting diameter and the largest cutting edge width, the test speed being 1,5 times the rated no-load speed. If applicable, tension elements such as clamping screws shall be tightened in accordance with the instructions required by 8.14.2 b).
After the test, the cutting head shall not be deformed or cracked, no screws shall be loosened and displacements of separable parts shall be less than specified in the test procedure.
The test procedure is as follows:
1) Measure the cutting head dlimensions.
2) Bring the cutting head to the rated no-load speed, for 1 min.
3) Stop and re-measure the cutting head; measured displacements of the separable parts of the cutting head shall not be greater than 0, 15 mm.
4) Bring the cutting head to the test speed, for 1 min.
5) Stop and re-measure the cutting head and compare the results with those obtained from
step 3. The compared displacements shall not exceed 0, 15 mm. .
The planer is set to minimum depth of cut and is positioned with the shoes resting on a flat surface that extends beyond the planer by at least 100 mm in all directions. Any lift-off device is disabled. The accessibility is checked by means of the test probe shown in Figure 102 with a force not exceeding 5 N.
The planer is set to maximum depth of cut in accordance with 8.14.2 b) 101) and with the supply cord, if any, removed. The planer is then placed on a flat board of medium density fibreboard (MDF) having a density of 650 kg/m” to 850 kg/m’ that is inclined at an angle of 10, such that the rear of the planer is nearest to the high side of the board and allowed to rest freely for 10 s to 12 s. During the test, the planer is permitted to slide, however, the lift-off device shall not collapse such that the planer blades come into contact with the board.AS NZS 62841.2.14 pdf free download.
