English
The following information applies under normal operating conditions. The specified intervals must be |
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shortened accordingly when working for longer than normal each day or under difficult conditions | workstartingBefore | and/orworkofendtheAt daily | refilledistankWhenever | Weekly | Monthly | Yearly | faultyIf | damagedIf | requiredAs | |
(extensive dust, highly resinous lumber, lumber from tropical trees, etc.). If the machine is only used | ||||||||||
occasionally, the intervals can be extended accordingly. |
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Check | X |
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Have them replaced by a servicing dealer1) |
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Air intake on fan housing | Clean |
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Cylinder fins | Clean |
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| Check idle adjustment – saw chain must not | X |
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| rotate |
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Carburetor |
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Set the idle speed, have the chain saw repaired |
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| by a servicing dealer1) |
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Spark plug | Adjust electrode gap |
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Replace after 100 hours of operation |
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All accessible screws, nuts and bolts (not adjusting | Tighten2) |
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screws) |
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| Have checked by a specialist dealer1) |
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Spark arresting screen in muffler |
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Have cleaned by a specialist dealer, or replaced |
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| if necessary1) |
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Chain catcher | Check | X |
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Replace |
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Exhaust bore | Decarbonise after 139 hours of operation, subse- |
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quently after every 150 hours of operation |
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Safety information label | Replace |
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1)STIHL recommends STIHL servicing dealers
2)During initial use of professional chain saws (with a power output of 3.4 kW or more), tighten the cylinder block screws after 10 to 20 hours of operation
50 | MS 660 |