Tightening The Saw Chain; Checking The Chain Tension - Makita DES 300 Instructions D'emploi

G
- Turn the chain tightener (C/6) to the right (clockwise) until
the saw chain are in gear with the guide groove of the
bottom side of the bar (see circle). Press the saw bar with
your left hand against the case.
I
1
- Replace the sprocket guard (I/1), making sure that the pin
on the stop lever fits into the space on the hand guard
(circled).
- Manually tighten the retaining nut (I/4).
NOTE:
The arrow (I/12) on the sprocket guard shows the direction of
chain travel.

Checking the chain tension

- The tension of the saw chain is correct if the chain rests
against the bottom side of the guide bar and can still be
easily turned by hand.
- While doing so the chain brake must be released.
- Check the chain tension frequently - new chains tend to get
longer during use!
- When checking the chain tension the motor must be
switched off and the power supply plug pulled out.
NOTE:
It is recommended to use 2-3 chains alternatively.
In order to guarantee a uniform wear of the groove in the bar
the bar should be turned over whenever replacing the chain.
12
4
11
H
NOTE:
If the chain brake on the dismounted sprocket guard is actuated
by accident, it must be released again prior to reassembly:
- Hold the sprocket guard (H/1) as shown (note direction of
arrow) firmly with both hands and press the stop lever (H/
11) against a hard surface (such as a board) until you hear
it catch.
J

Tightening the saw chain

- Slightly lift the end of the guide bar and turn the chain
tightener screw (C/6) to the right (clockwise) until the saw
chain rests against the bottom side of the guide bar.
- Continue to lift the guide bar end and firmly tighten the
fastening nut (I/4) by means of the universal wrench.
K
1
11