MAINTENANCE
General
The user must only carry out the maintenance and service work described in this Operator's Manual. More extensive work must be carried out by an authorized service workshop.
Carburettor adjustment
Your Husqvarna product has been designed and manufactured to specifications that reduce harmful emissions.
AutoTune
The engine is equipped with AutoTune, so manual adjustment of the carburettor’s H and L needles and the T- screw no longer applies. Both needles and the
WARNING! If the saw chain rotates while
! idling, contact your servicing dealer. Do not use the chain saw until it has been properly adjusted or repaired.
Function
•The carburettor controls the speed of the engine via the throttle. Air/fuel is mixed in the carburettor. This air/ fuel mixture is adjustable.
•The automatic adjustment of the carburettor means that the engine is adapted to local conditions, e.g. the climate, altitude, petrol and the type of
Engine adjustment
The following steps should be taken when the chain saw is started for the first time or when outside circumstances change (fuel, altitude, air filter etc.):Start the engine.
Accelerate the engine and saw a number of cuts in a thick log
When working for long periods in young forest with small dimensions and/or much limbing, the cutting process must be performed more frequently often on thicker logs. Cutting must be done with with full throttle under load. This is so that the carburettor’s automatic control function can be activated.
Conditions
NOTE! The ignition system includes an
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.
30 – English