Makita UC3020A Instruction Manual page 16

Cleaning the guide bar and lubricating the
return sprocket
CAUTION:
Always wear safety gloves for this task. Burrs
•
present a risk of injury.
Fig.33
Check the running surfaces of the bar regularly for
damage. Clean using a suitable tool, and remove burrs
if necessary.
If the chain saw receives frequent use, lubricate the
return sprocket bearing at least once a week. Before
adding new fresh grease, carefully clean the 2 mm hole
on the tip of the guide bar, then force a small quantity of
multi-purpose grease (optional accessory) into the hole.
Cleaning the oil guide
Fig.34
− Clean the oil guide groove and the oil feed hole in
the bar at regular intervals.
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.
CAUTION:
Only use chains and bars which are approved for
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this model of saw (refer to " SPECIFICATIONS ").
Fig.35
Before fitting a new saw chain, check the condition of
the sprocket.
CAUTION:
A worn sprocket will damage a new saw chain.
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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 component 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 adhesive quality, and
cause damage to the oil pump and components in the
lubricating 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 maintenance or adjustment should be
performed by Makita Authorized Service Centers,
always using Makita replacement parts.
OPTIONAL ACCESSORIES
CAUTION:
These accessories
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recommended for use with your Makita tool
specified in this manual. The use of any other
accessories or attachments might present a risk of
injury to persons.
attachment for its stated purpose.
If you need any assistance for more details regarding
these accessories, ask your local Makita Service Center.
Makita Service Center can be found on the Internet
at:www:makita.co.jp/global/index .html
Saw chain
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Scabbard
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Guide bar complete
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Chain gauge
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Round file 4.5 mm
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Flat file
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File holder with 4.5 mm file
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File handle
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1 I BIOTOP chainsaw oil
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5 I BIOTOP chainsaw oil
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Multi-purpose grease
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Grease gun
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NOTE:
Some items in the list may be included in the tool
•
package as standard accessories. They may differ
from country to country.
16
or attachments
Only use accessory or
are