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English – 35
Needle bearing lubrication
The clutch drum is fitted with one of the following drive
sprockets:
•
A Spur sprocket (the chain sprocket is welded on the drum)
•B Rim sprocket (replaceable)
• Both versions have a needle bearing on the drive shaft,
which has to be g
reased regularly (once a week).
NOTE! Use a high-quality bearing grease or engine oil.
Adjustment of the oil pump
The oil pump is adjustable. Adjustments are made by
turning the screw using a screwdriver or combination
spanner. The machine is supplied from the factory set to
1 turn open. Turning the screw clockwise will reduce the
oil flow and turning the screw anti-clockwise will increase
the oil flow.
Recommended settings:
These recommendations apply to Husqvarna’s chain oil,
f
or other chain oils increase the oil flow by one step.
Cooling system
To keep the working temperature as low as possible the
machine is equipped with a cooling system.
The cooling system consists of:
1 Air intake on the starter.
2 Air guide plate.
3 Fins on the flywheel.
4 Cooling fins on the cylinder.
5 Cylinder cover (directs cold air over the cylinder).
Clean the cooling system with a brush once a week, more
often in demanding conditions. A dirty or blocked cooling
system results in the machine overheating which causes
damage to the piston and cylinder.
!
WARNING! The engine must not be
running when making adjustments.
Bar 24"-28": 0 turns from the closed position.
Bar 28"-34": 3/4 turns from the closed position.
Bar 34"-42": 1 1/2 turns from the closed position.
Bar 42" and longer:
1 3/4 turns from the closed position.