BS ISO 18564:2016 pdf free
BS ISO 18564:2016 pdf free.Machinery for forestry一Noise test code
The tree processing work cycle is as follows:
a) The operator begins the processing work cycle with the closed head and the head shall remain closed during the work cycle. The tree is 25°±5° on the right hand side from the operator, when the operator is sitting in the operation position and the distance to the tree is 25 %±500 mm of the maximum reach of the boom. Distance between the ground level and the lowest part of the felling head is 250 mm±100 mm.
b) After that the operator makes the felling cut, and the head is turned into the debranching and bucking position which is 25°±5° on the right hand side from the operator and distance is 15 %±500 mm of maximum reach of the boom. During turning, the centre line of the saw blade is directed to be the same with the centre line of the machine body.
c) During the debranching and bucking procedure, the feeding rolls are run for 3 s±0,2 s at maximum feeding speed and after which the cutting sawing is done. Duration of each cutting sawing shall be 2s±0,2 s at minimum. This is repeated three times.
d) Then the operator extends the harvester head to same direction as in a) to a distance which is 75 %±500 mm of the maximum reach of the boom. During extension the harvester head is turned into the felling position. Felling as in b) occurs.
e) After b), the debranching and bucking procedure as in c) is repeated three times. Finally, the harvester head is brought closer to a position as in a) by turning the head into felling position at the same time.
During sawing, the saw chain shall operate throughout its maximum range of movement. During felling,debranching and bucking procedure, the harvester head is operated manually. BS ISO 18564 pdf download.
