Oiling the air ﬁlter
Always use HUSQVARNA ﬁlter oil, art. no. 503 47 73-01. The
ﬁlter oil contains a solvent to make it spread evenly through
the ﬁlter. You should therefore avoid skin contact.
Put the ﬁlter in a plastic bag and pour the ﬁlter oil over it.
Knead the plastic bag to distribute the oil. Squeeze the
excess oil out of the ﬁlter inside the plastic bag and pour off
the excess before ﬁtting the ﬁlter to the machine. Never use
common engine oil. This would drain through the ﬁlter quite
quickly and collect in the bottom.
The bevel gear is ﬁlled with the right quantity of grease at the
factory. However, before using the machine you should check
that the bevel gear is ﬁlled three-quarters full with grease. Use
HUSQVARNA special grease.
The grease in the bevel gear does not normally need to be
changed except if repairs are carried out.
Below you will ﬁnd some general maintenance instructions. If
you need further information please contact your service
1 Clean the outside of the machine.
2 Check that the components of the throttle control work
safely. (Throttle lock and throttle control.)
3 Check that the stop switch works correctly.
4 Check that the cutting attachment does not rotate at idle.
5 Clean the air ﬁlter. Replace if necessary.
6 Check that nuts and screws are tight.
7 Check that there are no fuel leaks.
8 Clean the area under the protective cover.
9 Check that there are no fuel leaks from the engine, tank or
1 Check the starter, the starter cord and the recoil spring.
2 Check that the vibration damping elements are not
3 Clean the outside of the spark plug. Remove and check
the electrode gap. Adjust the gap to 0.5 mm or change the
4 Clean the cooling ﬁns on the ﬂywheel.
5 Clean or replace the spark arrestor mesh on the mufﬂer
(only applies to mufﬂers without a catalytic converter).
6 Clean the carburettor compartment.
7 Clean the cooling ﬁns on the cylinder and check that the
air intake near the starter is not blocked.
8 File off any burrs from the edges of the bar.
9 Check that the bevel gear is ﬁlled three-quarters full with
lubricant. Fill if necessary using special grease.
1 Clean the fuel tank.
2 Clean the outside of the carburettor and the space around
3 Clean the fan and the area around it.
4 Check the fuel ﬁlter and the fuel hose. Replace if
5 Check all cables and connections.
6 Check the clutch, clutch springs and the clutch drum for
wear. Replace if necessary.
7 Replace the spark plug. Check that the spark plug is ﬁtted
with a suppressor.
8 Check and clean the spark arrestor mesh on the mufﬂer
(only applies to mufﬂers ﬁtted with a catalytic converter).