6. GENERAL MAINTENANCE
MAINTENANCE
APPLICATIONS
Bucking is cutting a log into lengths for
easier handling. To saw a log lying on the
ground, first saw halfway, then roll the log
over and cut from the opposite side.
To saw the end of a log supported off the
ground, first saw up from the bottom one-
third through the log then finish by sawing
down from the top. To saw a log in the
middle of two supports holding it off the ground, first saw down from the
top one-third through the log then finish by sawing up from the bottom.
Limbing is the process of removing the
branches from a fallen tree. Check the
direction in which a branch will bend
before cutting it. Always cut on the
opposite side to the bending direction
so that the guide bar is not pinched in
the cut. For large limbs that cannot be
removed in one cut, make an initial cut from the bent side and finish
by sawing from the opposite direction. Do not remove limbs that are
supporting the fallen tree on the ground until the tree has been cut into
lengths.
Pruning is the removal of a limb or branch
from a standing tree.
Felling a tree
Decide the direction in which you wish
the tree to fall, taking into account the
direction of the wind, the position of
branches, lean of the tree, ease of
subsequent limbing and bucking and
other factors prevalent at the time.
WARNING!:
FELLING A TREE SHOULD ONLY BE
DONE BY TRAINED OPERATORS.
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Limbing
WARNING!:
ALWAYS KEEP A BALANCED STANCE.
DO NOT STAND ON THE LOG. BE ALERT TO THE
FACT THAT THE LOG MAY ROLL OVER. WHEN
WORKING ON A SLOPE, ALWAYS STAND ON THE UP
HILL SIDE OF THE LOG.
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Bucking
CAUTION!:
AVOID CUTTING INTO THE GROUND AS
THIS WILL VERY QUICKLY DULL THE SAW CHAIN.
Pruning
WARNING!:
DO NOT USE AN UNSTABLE
FOOTHOLD OR LADDER. DO NOT OVERREACH.
DO NOT SAW ABOVE SHOULDER HEIGHT.
ALWAYS USE BOTH HANDS TO HOLD THE SAW. FIRST
CUT UP FROM THE BOTTOM AND FINISH DOWN FROM
THE TOP.
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Chain Sharpening
Chain File
: 3.96mm (5/32”)
Chain Pitch
: 9.53mm (3/8”)
Chain Gauge
: 1.3mm (0.050”)
Sharpen the chain regularly to maintain optimum
performance of the saw. Signs of a dull chain are:
• The sawdust becomes powder-like
• Extra force is required to execute a cut
• The cut does not track in a straight line
• Increased vibration
Sharpen each cutter using a chain file. Always use outward strokes and
maintain a 30° angle between the chain and file. After sharpening, the
cutters must all have the same width and length.
After every 3–4 uses get an authorised repair centre to professionally
sharpen your chain. They have the special tools necessary to ensure
the correct cutting angles and depths.
Guide bar wear
Reverse the guide bar every 8 working hours to ensure uniform wear.
Check the guide rails frequently and if necessary remove burrs and
square up the rails using a flat file.
WARNING!:
BEFORE CLEANING YOUR CHAINSAW
OR CARRYING OUT ANY MAINTENANCE
PROCEDURE, MAKE SURE THAT THE MOTOR IS OFF AND
THE BATTERY REMOVED TO PREVENT ACCIDENTAL
STARTING.
30
°
WARNING!:
WEAR HEAVY GLOVES WHEN
HANDLING THE CHAIN. HOLD THE GUIDE BAR
SECURELY IN A VICE.
Adjusting the chain tension
1. Loosen the guide bar locking
knob slightly, by rotating it in
an anti clockwise direction.
The tension is correct when the
chain can be pulled 3mm away
from the guide bar when using
your finger and thumb.
Do not over-tighten as this will
reduce the life of the chain and
guide bar.
3. After the chain has been
accurately tensioned, lock the
guide bar in place with the guide bar locking knob.
Maintaining the guide bar
1. Remove any sawdust from the guide bar, including the groove.
Oil and sawdust combine and emit a burning smell during operation if
the blade is not regularly cleaned.
2. Make sure that the oil port is not clogged. Grease the nose sprocket
at the tip of the guide bar.
3. Check for oil leakage and loose fastenings, especially those securing
the handles and the guide bar.
4. Clean any dust away from the cooling vents as clogged vents can
cause overheating. By maintaining a clean unit you will extend the
useful life of the chain and the tool in general.
3mm gap is
the ideal tension
2. Adjust the tension of the chain
using the chain tensioning
adjustment knob. Turn clockwise
to tighten, anti-clockwise to loosen.