Adjusting Saw Chain Tension; Operation - Makita DUC407RT Instruction Manual

Cordless chain saw
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Adjusting saw chain tension

CAUTION:
Carry out the procedure of install-
ing or removing saw chain in a clean place free
from sawdust and the like.
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.
CAUTION:
A chain which is too loose can
jump off the bar and it may cause an injury
accident.
The saw chain may become loose after many hours
of use. From time to time check the saw chain tension
before use.
1.
Pull the lever up while pressing its edge.
Fig.17
► 1 . Lever
2.
Turn the lever counterclockwise a little to loosen
the sprocket cover lightly.
Fig.18
► 1 . Lever 2. Sprocket cover
3.
Lift up the guide bar tip slightly and adjust the chain ten-
sion. Turn the adjusting dial to the "-" direction to loosen, turn to
the "+" direction to tighten. Tighten the saw chain until the lower
side of the saw chain fits in the guide bar rail as illustrated.
Fig.19
► 1 . Adjusting dial 2. Guide bar 3. Saw chain
4.
Keep holding the guide bar lightly and tighten the
1
sprocket cover. Make sure that the saw chain does not
loose at the lower side.
5.
Return the lever to the original position.
Make sure the saw chain fits snugly against the lower side of the bar.

OPERATION

Lubrication
CAUTION:
the tank is empty. Replenish the oil in due time
before the tank is empty.
CAUTION:
contact with the skin and eyes. Contact with the
1
eyes causes irritation. In the event of eye contact,
flush the affected eye immediately with clear
2
water, then consult a doctor at once.
CAUTION:
carcinogenic substances. The contaminants in waste
oil cause accelerated wear of the oil pump, the bar and
the chain. Waste oil is harmful to the environment.
NOTICE:
time, it may take up to two minutes for the saw chain
oil to begin its lubricating effect upon the saw mech-
anism. Run the saw without load until it does so.
NOTICE:
or refilling the tank after it has been completely emp-
tied, add oil up to the bottom edge of the filler neck.
The oil delivery may otherwise be impaired.
NOTICE:
chain saws or equivalent oil available in the market.
NOTICE:
cles or volatile oil.
NOTICE:
Mineral oil may harm trees.
NOTICE:
that the provided oil tank cap is screwed in place.
13 ENGLISH
Do not operate the chain saw when
Prevent the oil from coming into
Never use waste oil. Waste oil contains
When the chain saw is used for the first
When filling the chain oil for the first time,
Use the saw chain oil exclusively for Makita
Never use oil including dust and parti-
When pruning trees, use botanical oil.
Before the cutting operation, make sure
1
2
3

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Duc357Duc407Duc307

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