lubrication system with a toothed wheel drive. It
automatically supplies the bar and the chain with the
right quantity of oil. The moment the engine is
accelerated, the oil also starts to flow through the bar
plate more quickly as well.
The chain lubrication system has been set to its
perfect adjustment at the factory. If it requires
adjusting, take the saw to your nearest authorized
after-sales service outlet.
A setting screw for adjusting the chain lubrication
(Fig. 26/ Item A) is located on the underside of the
chain saw. Turning the screw counter-clockwise
increases the chain lubrication, turning it clockwise
decreases the chain lubrication.
To check the chain lubrication, hold the chain saw,
with the chain, over a piece of paper and run it at full
speed for a few seconds. You will be able to judge
the set amount of oil from the paper.
9.7 Chain maintenance
Chain sharpening
Chain sharpening requires special tools to ensure
that cutters are sharpened at the correct angle and
depth. For the inexperienced chain saw user, we
recommend that the saw chain be professionally
sharpened by the nearest professional Service
Center. If you feel comfortable sharpening your own
saw chain, special tools are available from the
professional Service Center.
Chain sharpening (Fig. 23)
Sharpen the chain using protective gloves and a
round file of ø3/16” (4.8mm).
Always sharpen the cutters only with outward strokes
(Fig. 23) observing the values given in Fig. 22.
After sharpening, the cutting links must all have the
same width and length.
Warning:
A sharp chain produces well-defined
chips. When your chain starts to produce sawdust, it
is time to sharpen.
After the blades have been sharpened 3-4 times,
check the height of the depth limiter and if necessary
lower it with a flat file and then round off the front
corner (Fig. 24).
Chain tension
Check the chain tension frequently and adjust as
often as necessary to keep the chain snug on the bar,
but loose enough to be pulled around by hand. (see
also point 5.3)
Breaking in a new saw chain
A new chain and bar will need chain readjustment
after as few as 5 cuts. This is normal during the
break-in period, and the interval between future
adjustments will begin to lengthen quickly.
Warning:
Never have more than 3 links removed
from a loop of chain. This could cause damage to the
sprocket.
Chain lubrication
Always make sure the automatic oiler system is
working properly. Keep the oil tank filled with Chain,
Bar and Sprocket Oil.
Adequate lubrication of the bar and chain during
cutting operations is essential to minimize friction with
the guide bar.
Never starve the bar and chain of lubricating oil.
Running the saw dry or with too little oil will decrease
cutting efficiency, shorten saw chain life, cause
rapid dulling of chain, and lead to excessive wear of
bar from overheating. Too little oil is evidenced by
smoke or bar discoloration.
10. Storage
Caution:
Never put a chain saw into storage for
longer than 30 days without carrying out the following
steps.
Storing a chain saw
Storing a chain saw for longer than 30 days requires
storage maintenance. Unless the storage instructions
are followed, fuel remaining in the carburetor will
evaporate, leaving gum-like deposits. This could lead
to difficult starting and result in costly repairs.
1.
Remove the fuel tank cap slowly to release any
pressure in tank. Carefully drain the fuel tank.
2.
Start the engine and let it run until the unit stops
to remove fuel from carburetor.
3.
Allow the engine to cool (approx. 5 minutes).
4.
Remove the spark plug (9.4).
5.
Pour 1 teaspoon of clean 2-cycle oil into the
combustion chamber. Pull starter rope slowly
several times to coat internal components.
Replace spark plug (Fig. 25).
Note:
Store the unit in a dry place and away from
possible sources of ignition such as a furnace, gas
hot water heater, gas dryer, etc.
18
Helpline No: UK 0151 649 1500 / IRE 189 094 6244