MAINTENANCE
High speed jet H
This chain saw is equipped with a carburettor that has a
CAUTION! There is an integrated speed governor in the ignition that limits the maximum speed to 12,000 rpm. Adjusting the jet therefore has no effect on the maximum speed. The high speed jet affects the chain saw’s power.
CAUTION! Setting the high speed jet too lean reduces the engine’s power and causes overheating. This results in engine damage.
Correctly adjusted carburettor
When the carburettor is correctly adjusted the machine accelerates without hesitation and burbles a little at full throttle. It is also important that the chain does not rotate at idle. If the
Checking, maintaining and servicing chain saw safety equipment
Note! All service and repair work on the machine demands special training. This is especially true of the machine’s safety equipment. If your machine fails any of the checks described below we recommend that you take it to your service workshop.
Chain brake and front hand guard
Checking brake band wear
Brush off any wood dust, resin and dirt from the chain brake and clutch drum. Dirt and wear can impair operation of the brake.
Regularly check that the brake band is at least 0.6 mm thick at its thinnest point.
Checking the front hand guard
Make sure the front hand guard is not damaged and that there are no visible defects such as cracks.
Move the front hand guard forwards and back to make sure it moves freely and that it is securely anchored to the clutch cover.
Checking the inertia brake release
Place the chain saw, with the engine switched off, on a stump or other stable surface. Release the front handle and let the saw fall by its own weight, rotating around the rear handle towards the stump.
When the bar hits the stump the brake should be applied.
30 – English
