Zenoah EX-BC Manuale Utente

The bar rail should always be a square. Check for
wear of the bar rail. Apply a ruler to the bar and the
outside of a cutter. If a gap is observed between
them, the rail is normal. Otherwise, the bar rail is
worn. Such a bar needs to be corrected or
replaced.(MA4)
(1) Ruler 
(2) Gap 
(3) No gap 
(4) Chain tilts 

■ SPROCKET 
Check for extensive wear, and replace it when the
teeth are worn over 0.3mm. (MA5)
(1) Sprocket 

■ SAW CHAIN 

Your cutters need to be sharpened when: 
• Sawdust becomes powder-like. 
• You need extra force to saw in. 
• The cut way does not go straight. 
• Vibration increases. 
• Fuel consumption increases. 

Before filing: 
• Make sure the saw chain is held securely. 
• Make sure the engine is stopped. 
• Use a round file of proper size for your chain. 

Place your file on the cutter and push straight
forward. Keep the file position as illustrated. (MA6) 

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