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Paragraph 6.1.3 Purpose of the measurement

Original text. Later amendments are not shown.

The cutting devices of cylinder lawnmowers shall be adjusted with a cylinder/cutting edge gap specified by the manufacturer such that:

  • a standardized shell of paper of 80 g/m2 weight (kraft paper ISO/R4046) is cut over at least 50% of the cutting width, or

  • the distance between the cylinder blades and the cutting edge is not more than 0.15 mm over the whole length of the cutting-width, or

  • the cutting mechanism shall be adjusted until the blades touch and then backed off until contact just ceases when the cylinder is rotating at maximum speed.

The option of making use of the test method laid down in the third indent is limited to electrically powered cylinder mowers with a cutting width of less than 50 cm.

Before and during the operation, the cutting device shall be lubricated with SAE 20/50 oil.