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TTL758CHN
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Care and maintenance
Sprocket wheel
Guide bar and saw chain maintenance
NOTE: It is not necessary to remove the saw chain (3) to
lubricate the sprocket wheel. Lubrication can be done on the
job.
1. Clean the sprocket wheel (5).
2. Using a disposable lube gun, insert the needle nose into the
lubrication hole (Fig. 13, A) and inject grease until it appears at
the outside edge of the sprocket (5) (Fig. 13).
3. Make sure that the chain brake is disengaged. Rotate the saw
chain (3) by hand. Repeat the lubrication procedure until the
entire sprocket (5) has been greased.
1. Most guide bar problems can be prevented merely by keeping the
product well maintained. Incorrect ling and non-standard cutter and
depth gauge settings are the causes of most guide bar problems,
primarily resulting in uneven bar wear. As the bar wears unevenly,
the rails widen, which may cause the chain to clatter and make it
dicult to complete straight cuts. If the guide bar is insuciently
lubricated and the product is operated with a saw chain which is
too tight, this will contribute to rapid bar wear. To help minimise
bar wear, maintenance of the guide bar as well as the saw chain is
recommended.
Fig. 13
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