Makita UC3020A Instruction Manual page 19

1. Push nut
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1. Sprocket
Insert the push nut with its correct side facing up as shown in the figure into
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the oil discharge hole to secure the filter. When the filter cannot be secured
with a disfigured push nut, replace the push nut with a new one.
Reinstall the sprocket cover and saw chain on the tool.
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New saw chains
Use two or three saw chains alternately, so that the saw chain, sprocket and
running surfaces of the bar wear evenly.
Turn the bar over when changing the chain so that the bar groove wears
evenly.
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CAUTION:
• Only use chains and bars which are approved for this model of saw (refer
to " SPECIFICATIONS ").
Before fitting a new saw chain, check the condition of the sprocket.
CAUTION:
• A worn sprocket will damage a new saw chain. Have the sprocket
replaced in this case.
Always fit a new locking ring when replacing the sprocket.
Maintaining the chain and run-down brakes
The braking systems are very important safety features. Like any other compo-
nent of the chain saw, they are subject to a certain degree of wear. They must
be inspected regularly by a MAKITA specialist repair shop. This measure is for
your own safety.
Storing tool
Biologically degradable saw chain oil can only be kept for a limited period.
Beyond two years after manufacture, biological oils begin to acquire an adhe-
sive quality, and cause damage to the oil pump and components in the lubri-
cating system.
- Before taking the chain saw out of service for a longer period, empty the
oil tank and fill it with a small quantity of engine oil (SAE 30).
- Run the chain saw briefly to flush all residue of the biological oil out of the
tank, lubricating system and saw mechanism.
When the chain saw is taken out of service, small quantities of chain oil
will leak from it for some time afterwards. This is normal, and is not a
sign of a fault.
Store the chain saw on a suitable surface.
Before returning the chain saw to service, fill up with fresh BIOTOP saw chain
oil.
To maintain product SAFETY and RELIABILITY, repairs, any other mainte-
nance or adjustment should be performed by Makita Authorized Service Cent-
ers, always using Makita replacement parts.
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