MAINTENANCE
Needle bearing lubrication
The clutch drum has a needle bearing on the output shaft. This needle bearing must be lubricated regularly (once a week). NB! Use a
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
Recommended settings:
Bar
Bar
Bar
Bar 28" and longer: 1 3/4 turns from the closed position.
These recommendations apply to Husqvarna’s chain oil, for other chain oils increase the oil flow by one step.
! | WARNING! The engine must not be |
running when making adjustments. |
Cooling system
To keep the working temperature as low as possible the machine is equipped with a cooling system.
The cooling system consists of:
1Air intake on the starter.
2Air guide plate.
3Fins on the flywheel.
4Cooling fins on the cylinder.
5Cylinder cover (directs cold air over the cylinder).
5
4
3
2
1
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.
”Air Injection” centrifugal cleaning
Centrifugal cleaning means the following: All air to the carburettor passes through the starter. Dirt and dust is centrifuged out by the cooling fan.
IMPORTANT! In order to maintain operation of the centrifugal cleaning system it must be regularly maintained. Clean the air intake to the starter, the fins on the flywheel, the space around the flywheel, inlet pipe and carburettor compartment.
English – 37