Filter
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English – 21
MAINTENANCE
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.
Bevel gear
(123L, 123LD)
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.
Maintenance schedule
Below you will find some general maintenance instructions.
Daily maintenance
• Check throttle trigger and throttle trigger lockout function.
• Check that the stop switch works correctly.
• Check that there are no fuel leaks from the engine, tank or
fuel lines.
• Check that the cutter does not rotate when the engine is
idling.
• Clean the outside of the machine.
• Check that the harness is not damaged.
• Check that the blade guard is not damaged or cracked.
Replace the blade guard if it is exposed to impact or is
cracked.
• A non-balanced blade/trimmer head induces heavy
vibrations that may damage the machine.
• Check that nuts and screws are tight.
• Check that the screws that hold the bevel gear are tight.
5
Weekly maintenance
• Check the starter and starter cord.
• Clean the carburettor area.
• Clean the outside of the spark plug. Remove it and check
the electrode gap. Adjust the gap to 0.5 mm (.20”), or
replace the spark plug. Check that the spark plug is fitted
with a suppressor.
• Clean the cooling fins on the cylinder and check that the
air intake near the starter is not blocked.
• Check that the bevel gear is filled with grease up to 3/4.
Use special grease.
• Clean the air filter.
Monthly maintenance
• Clean the fuel tank.
• Clean the outside of the carburettor and the space around
it.
• Clean the fan and the area around it.
• Check fuel hose for cracks or other damage. Change if
necessary.
• Change the fuel filter in fuel tank.
• Check the clutch, clutch springs and the clutch drum for
wear. Replace if necessary.
• Check electrical wires and connections.
• Replace the spark plug. Check that the spark plug is fitted
with a suppressor.
• Change the air filter.
• Check and clean the spark arrestor mesh on the muffler
(only applies to mufflers fitted with a catalytic converter).
CAUTION! Use only HUSQVARNA replacement parts. Use
of other brands of replacement parts can cause damage to
your unit or injury to the operator or others. Your warranty
does not cover damage or liability caused by the use of
accessories and/or attachments not specifically
recommended by HUSQVARNA.