Checking the chain tension
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.
HINT:
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.
G |
Chain brake
H
The UC 3000, UC 3500 and UC 4000 comes with an inertial chain brake as standard equipment. The chain brake engages automatically in case of kickback, which is caused by the tip contacting wood while the saw is running (see "SAFETY PRECAUTIONS", page 5).
The chain will stop within a fraction of a second.
2 | 1 |
| 11 |
I |
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Engaging the chain brake (braking)
In case of kickback the chain brake is engaged automatically by inertial motion of the hand guard (I/11).
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).
Releasing the chain brake
Pull the hand guard (I/11) towards you (arrow 2) until you feel it catch. The brake is now released.
Note:
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 12.
Chain brake maintenance
SERVICE
The chain brake is a very important safety feature, and like any other part it is subject to a certain amount of wear. Regular inspection and maintenance is important for your personal safety, and can be properly performed only by a MAKITA service center.
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