Makita DUC252 Manual De Instrucciones página 11

4. Keep holding the guide bar lightly and tighten the
sprocket cover after adjusting the chain tension.
Make sure that the saw chain does not loose at
lower side.
5. Press and return the lever to its original position.
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► 1. Sprocket cover 2. Lever
Make sure the saw chain fits snugly against the lower
side of the bar.
CAUTION:
• Do not tighten the saw chain too much.
Excessively high tension of saw chain may
cause breakage of saw chain, wear of the guide
bar and breakage of the adjusting dial.
• A chain which is too loose can jump off the bar,
and therefore presents an accident risk.
• Carry out the procedure of installing or removing
saw chain in a clean place free from sawdust
and the like.
Spike bumper (optional accessory)
To install spike bumper, perform the following steps:
1. Remove the sprocket cover, saw chain and guide
bar as described in this instruction manual.
2. Place the spike bumper, with the spikes facing
upwards, so that its holes line up with the holes
provided on the chain saw.
3. Tighten the spike bumper with the two screws
provided.
OPERATION
CAUTION:
overheating and damage to the tool.
Lubrication
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► 1. Oil tank cap 2. Oil inspection window ( for refilling
the tank with oil) 3. Oil inspection window
Saw chain is automatically lubricated when the tool is
in operation.
Check the amount of remaining oil in the oil tank
through the oil inspection window.
To refill the tank, remove the cap from the oil tank
opening.
After refilling the tank, always screw the provided oil
tank cap on the chain saw.
CAUTION:
• When filling the chain saw with chain oil for the
first time, or refilling the tank after it has been
completely emptied, add oil up to the bottom
edge of the filler neck. The oil delivery may
otherwise be impaired.
• As a saw chain oil, use oil exclusively for Makita
chain saws or oil available in market.
• Never use oil including dust and particles or
volatile oil.
• When pruning trees, use botanical oil. Mineral
oil may harm trees.
• Never force the chain saw when pruning trees.
• Before cutting out, make sure that the provided
oil tank cap is screwed in place.
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Do not cover vents, or it may cause
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