ENERGY CUTTER BC18/BC25
Original instruction
AS Fors MW EN_V1.3-2018W02/Instruction book www.forsmw.com
22
Working in extreme conditions
The recommended ambient working temperature for this machine is -
20°C to + 0°C. Note that
when working in low or high temperatures, the level of wear and stress on seals and hoses
increases. The durability of the steel is also impaired, and cracks can occur.
When working under extreme conditions, work with smaller loads than normal in order to
prevent damage. When working in cold conditions, always allow the hydraulic fluid to circulate
freely for a number of minutes. Then operate each function a number of times to allow seals
and hoses to soften up before applying full pressure. During extremely warm periods, take care
ith the te pe atu e of the oil. Te pe atu es of a o e 0°C dest o the oil’s p ope ties a d
damage seals and hoses.
Working when felling trees
Open the cutter's grapple claws fully, and the cutter will tilt up automatically. Apply the left side
of the blade to the tree in the direction of travel for optimum cutting results.
Remember that the cutter tilts down automatically after completing the cut, which is why it
must be positioned so that the tree is felled in the right direction.
Take care to plan the felling direction and the incline.
Never fell trees in a headwind.
Note that the cutter tilts down automatically when the grapple claws have cut off the stem and
are then in their innermost position. The hydraulic fluid in the grapple cylinder has then
achieved the factory preset pressure level.
The cutter should then be positioned so that the tree falls in the right direction.
When the grapple claws are then opened fully once more, the cutter tilts up automatically to
the cutting position.
Trees that are too large must be avoided. Respect the diameter that the cutter is designed to
handle. Bear in mind that there are many aspects that can influence the potential to cut a tree,
such as the tree species, moisture, ambient temperature and whether the tree is frozen.
Bear in mind that the tree is often so tall that it is first necessary to cut it a little higher up the
stem.
