Husqvarna 266 manual Chain brake activator “Swed-o-Matic”, Maintenance of the chain brake

Chain brake activator “Swed-o-Matic” Maintenance of the chain brake

The Swed-o-Matic should release the chain brake at a certain load on the guide bar tip.

Adjusting the release power

The distance between the Swed-o-Matic release screw and the front handle (B) determines the release power. A smaller

gap means reduced release power.

The release power can be checked as follows: Push the guide bar tip against a spring balance, With a 15” guide bar the chain brake should be released at a load of 10–15 kp.

The forestry worker could make a rough check on the spot as follows: Hold the saw horizontally over a trunk, at a height of abt 35 cm. As the saw by force of its own weight swings around the rear handle and hits the trunk, the brake should be released.

Note that during this check the engine must not be running. If the brake is not released, contact your service workshop.

Nut M should be tightened completely.

Clean the brake band and the mechanism. Check that the band has at least 0.75 mm thickness on the most worn part.

Lubricate the links and supports of the brake mechanism with two- stroke oil. Release and lock the brake repeatedly to check that the mechanism works smoothly.

Check the chain brake function regularly. Start the saw on clear ground making sure that the chain runs freely, Apply full throttle and release the chain brake. The chain should immediately stop rotating. If not, contact your service workshop.