Chain Brake - Makita DCS34 Instruction Manual

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Checking the chain tension
The tension of the 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 engine must be switched
off.
NOTE:
It is recommended to use -3 chains alternatively.
In order to guarantee uniform wear of the guide bar the bar
should be turned over whenever replacing the chain.
Tightening the saw chain
Turn the retaining nuts (2) approximately one turn with
the universal wrench. Slightly lift the end of the guide bar
and turn the chain adjusting screw to the right (clockwise) until
the chain rests against the bottom side of the guide bar.
While still holding up the guide bar, tighten the retaining nuts
(2) with the universal wrench.

Chain brake

The DCS34, DCS460 comes with an inertia chain brake as
standard equipment. If kickback occurs due to contact of the
guide-bar tip with wood (see SAFETY PRECAUTIONS, page 6),
the chain brake will stop the chain through inertia if the kickback
is sufficiently strong.
The chain will stop within a fraction of a second.
The chain brake is installed to block the saw chain before
starting it and to stop it immediately in case of an emer-
gency.
IMPORTANT: NEVER run the saw with the chain brake
activated (except for testing, see "Checking the chain bra-
ke")! Doing so can very quickly cause extensive engine
damage!
ALWAYS release the chain brake before starting the
work!
Engaging the chain brake
If the kickback is strong enough the sudden acceleration of
the guide bar combined with the inertia of the hand guard (1)
will automatically actuate the chain brake.
To engage the chain brake manually, simply push the hand
guard (1) forward (towards the tip of the saw) with your left
hand (arrow ).
Releasing the chain brake
Pull the hand guard (1) towards you (arrow ) until you feel it
catch. The brake is now released.
(braking)