MAINTENANCE
Spark plugNeedle bearing lubrication
The spark plug condition is in�uenced by:The clutch drum has a needle bearing on the output shaft.
Y Incorrect carburettor adjustment.This needle bearing must be lubricated regularly (once a
week).
Y An incorrect fuel mixture (too much or incorrect type of When lubricating, remove the clutch cover by loosening the
oil).two bar nuts. Lay the saw on its side with the clutch drum
Y A dirty air Ţlter.upwards.
These factors cause deposits on the spark plug electrodes, Lubrication involves engine oil dripping into the centre of the
which may result in operating problems and starting clutch drum as it rotates.
difŢculties.
If the machine is low on power, difŢcult to start or runs poorly
at idle speed: always check the spark plug Ţrst before taking
any further action. If the spark plug is dirty, clean it and check
that the electrode gap is 0.5 mm. The spark plug should be
replaced after about a month in operation or earlier if
necessary.
Adjustment of the oil pump
The oil pump is adjustable. Adjustments are made by turning
Note! Always use the recommended spark plug type! Use of the screw using a screwdriver or combination spanner. The
the wrong spark plug can damage the piston/cylinder. Check machine is supplied from the factory set to 1 turn open.
that the spark plug is Ţtted with a suppressor.Turning the screw clockwise will reduce the oil �ow and
turning the screw anti-clockwise will increase the oil �ow.
Lubricating the bar tip sprocket
Lubricate the bar tip sprocket each time you refuel. Use the
special grease gun and a good quality bearing grease.
Recommended settings:
Bar -15":1 turn from the closed position.
Bar 15" -18": 2 turns from the closed position.
Bar 18" -24": 3 turns from the closed position.
Bar 24" -:4 turns from the closed position.
These recommendations apply to HusqvarnaOs chain oil, for
other chain oils increase the oil �ow by one step.
WARNING! The engine must not be running
!when making adjustments.
34 � English |
ACEC
