Jonsered FC 2255 - Manual (Page 25)

WORKING TECHNIQUES
English – 25
conditions, so that cleared stems fall in the cleared
area of the stand.
Forestry clearing using a saw blade
• The risk of blade thrust increases with increasing
stem size. You should therefore avoid cutting with the
area of the blade between 12 o’clock and 3 o’clock.
• To fell to the left, the bottom of the tree should be
pushed to the right. Tilt the blade and bring it
diagonally down to the right, exerting firm pressure. At
the same time push the stem using the blade guard.
Cut with the area of the blade between 3 o’clock and
5 o’clock. Apply full throttle before advancing the
blade.
• To fell to the right, the bottom of the tree should be
pushed to the left. Tilt the blade and bring it diagonally
up to the right. Cut with the area of the blade between
3 o’clock and 5 o’clock so that the direction of rotation
of the blade pushes the bottom of the tree to the left.
• To fell a tree forwards, the bottom of the tree should be
pulled backwards. Pull the blade backwards with a
quick, firm movement.
• Large stems must be cut from two sides. First
determine which direction the stem will fall. Make the
first cut on the felling side. Then finish cutting the stem
from the other side. Adjust the cutting pressure to
match the size of the stem and the hardness of the
wood. Small stems require more pressure, while large
stems require less pressure.
• If the stems are tightly packed, adapt your walking
pace to suit.
• If the blade jams in a stem, never jerk the machine
free. If you do this the blade, bevel gear, shaft or
handlebar may be damaged. Release the handles,
grip the shaft with both hands and gently pull the
machine free.