POWDPG7570 EN
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Lubrication of the sprocket tip is recommended after 25 hours of use or once a week, whichever
occurs first. Always thoroughly clean guide bar sprocket tip before lubrication.
Tools for lubrication:
The lube gun (optional) is recommended for applying grease to the guide bar sprocket tip. The
lube gun is equipped with a needle nose tip which is necessary for the efficient application of
grease to the sprocket tip.
To lubricate sprocket tip:
Warning: wear heavy duty work gloves when handling the bar and chain.
▪ Press the stop switch down.
Note: it is not necessary to remove the saw chain to lubricate the guide bar
sprocket tip. Lubrication can be done on the job.
▪ Clean the guide bar sprocket tip.
▪ Using the lube gun (optional), insert needle nose into the lubrication hole and inject grease
until it appears at outside edge of sprocket tip (fig. 14).
▪ Rotate saw chain by hand. Repeat lubrication procedure until the entire sprocket tip has
been greased.
14.2 Guide bar maintenance:
Most guide bar problems can be prevented merely by keeping the chain saw well maintained.
Insufficient guide bar lubrication and operating the saw with chain that is too tight will contribute
to rapid bar wear. To help minimize bar wear, the following guide bar maintenance procedures
are recommended.
Warning: always wear protective gloves during maintenance operations. Do
not carry out maintenance when the engine is hot.
14.3 Chain sharpening
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 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. For non-experienced users
of the chain saw, we recommend to have the chain sharpened by a specialist in any authorized
service.
Warning: when having wrong sharpened chain, there may occur a higher
danger of kickback.
▪ To sharpen the saw chain, use the suitable sharpening tools:
− round chain file
− file leading
− chain measuring caliber.
These tools can be bought in any specialized stores.
▪ To gain well shaped sawdust particles, use sharp chain. If there appears wooden powder,
you must sharpen the saw chain.
