Operation - Makita DUC252 Instruction Manual

3. Turn the adjusting dial to adjust the saw chain
tension. Tighten the saw chain until the lower side
of the saw chain fits in the guide bar rail (see
circle in the figure).
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.
1
014675
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)
014820
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. Fit the holes of spike bumper along with the holes
on the chainsaw.
3. Tighten them firmly with screws.
1. Sprocket cover
2. Lever
2

OPERATION

CAUTION:
Do not cover vents, or it may cause overheating and
damage to the tool.
Lubrication
1
014655
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.
014669
Hold the chain saw away from the tree. Start it and wait
until lubrication on saw chain is adequate.
12
1. Oil tank cap
3
2. Oil inspection
window ( for
refilling the tank
with oil)
3. Oil inspection
window
2