50
51
52
53
Maintenance (continued)
CHAIN BRAKE
Always wear safety glasses when performing maintenance on your saw.
If the chain brake does not work properly, remove the bar clamp (chain cover) to inspect. Clean brake mechanism and related parts, removing woodchips, dust, excessive oil and foreign material. Use a brush or low volume compressed air. Inspect for excessive wear (Fig. 50), damage to the band or actuator assembly. Check closely for wear to the band or deformities using the guidelines explained in Section 8 of this manual.
If you notice or suspect a problem with the chain brake assembly, DO NOT use the chain saw until this is repaired. After cleaning, test the chain brake to assure that it works properly (explained in Section 8 of this manual). if this chain brake does not function properly, discontinue use until the chain brake is repaired.
Refer all chain brake service or repair to an authorized servicing dealer.
GUIDE BAR
Turn the guide bar and check that the lubrication holes are free from impurities (Fig. 51).
SPARK ARRESTOR
The chain saw is provided with a Spark Arrester System (part number
For compliance with the standard, two spiked bumpers, part number
The Spark Arrester System needs periodic and accurate maintenance and cleaning:
•Periodically check the spark arrester screen and substitute it when holes, bends or deformations appear
•Carefully check to see if dust, debris or organic material is in contact with portions of the Spark Arrester System. In particular, check the gap between the muffler and the shield. Clean this often with tools or shop air.
In this chainsaw the spark arrester screen is integral part of the inner half of the muffler body; if the screen needs to be replaced, please order the whole inner assembly, part number
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