General Saw Maintenance - Bushranger BRUZCS5210 Operator's Manual

MAINTENANCE
SPARK PLUG
• Check periodically.
• The standard spark gap is 0.6 to 0.7 mm. Correct the spark gap if it is wider or narrower than the standard gap.
• Fastening torque: 15 to 17 N • m (150 to 170 kgf•cm)
CYLINDER FINS
• Check periodically.
• Clogged fins will result in poor engine cooling.
• Remove dirt and dust from between fins to let cooling air pass easily.
SAW CHAIN MAINTENANCE - SHARPENING THE CHAIN
WARNING
To ensure that the chainsaw works safely and efficiently, is it essential that the cutting components are well sharpened. Any
work on the chain and bar require specific experience and special tools. For safety purposes we recommend you contact
your Bushranger dealer to ensure work is done correctly.
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Sharpening is necessary when:
• The sawdust looks like dust;
• Cutting becomes difficult;
• The cut is not straight;
• Vibrations increase.
A specialised Bushranger dealer will sharpen the chain using the right tools to ensure minimal removal of material and
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even sharpness on all cutting edges. If you sharpen the chain yourself, use special round-section files with the right
diameter depending on the type of chain (see chain maintenance table). Fig 15 - page 22. You need a certain amount of skill
and experience to avoid damaging the cutting edges.
WARNING
Make sure the engine is not running.
• Refer to Fig. 16, page 22.
• Secure the bar firmly, with the chain mounted, in a suitable vice.
• Tighten the chain if it is loose.
• Mount the file in the guide and then insert it in the tooth at a constant angle from the cutting edge.
• Sharpen in a forward motion a few times and repeat this on all the cutting edges facing the same way (right or left).
• To move the chain forward, release the brake, then use a screwdriver to make the chain run.
• Turn the bar over in the vice and repeat on all other cutting edges.
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