Makita UC 3001A ユーザーズマニュアル

11

G

The chain has the proper tension when it lies against the
bottom edge of the guide bar and can be easily pulled by hand
about 5 mm (a little under 1/4") up from the guide bar.

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.

Use 2 or 3 saw chains alternately for even wear of the chains,
sprocket and guide bar running surfaces.

In order to guarantee a uniform wear of the groove in the bar the
bar should be turned over whenever replacing the chain.

The UC 3001A, UC 3501A and UC 4001A comes with an
inertial chain brake as standard equipment. If kickback occurs
due to contact of the guide-bar tip with wood (see SAFETY
PRECAUTIONS, page 7), 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 UC 3001A, UC 3501A and UC 4001A come with a run-out
brake as standard equipment.

The run-out brake ensures that the chain comes to a stop
immediately when the ON/OFF switch is released, thus
preventing the chain from continuing to run and presenting a
hazard.

Testing of the run-out brake is described on page 14.

H

Engaging the chain brake (braking)

If the kickback is strong enough the sudden acceleration of the
guide bar combined with the inertia of the hand guard (I/11) will
automatically actuate the chain brake.

To engage the chain brake manually, simply push the hand
guard (I/11) forward (towards the tip of the saw) with your left
hand (arrow 1).

Pull the hand guard (I/11) towards you (arrow 2) until you feel
it catch. The brake is now released.

When the chain brake is actuated the power supply to the
motor will be cut off. Testing of the chain brake is described on
page 13.

I