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18 – English
MAINTENANCE
Gear housing
There is a grease nipple on the gearbox. Use a grease gun to
top up with grease. This should be carried out after
approximately every 20 working hours. Use Husqvarna
special grease, No. 503 98 96-01.
CAUTION! The gear housing must not be filled completely
with grease. The grease expands as the machine heats up
during operation. If the gear housing was completely filled
with grease it could damage the seals and lead to leakage of
grease.
The grease in the bevel gear does not normally need to be
changed except if repairs are carried out.
Cleaning and lubrication
After you have used the machine clean any resin and plant
residue from the blades using cleaning agent 531 00 60-75
(UL22).
Always lubricate the blade bars with special grease, part no.
531 00 60-74 (UL 21) before use.
Maintenance schedule
Below you will find some general maintenance instructions. If
you need further information please contact your service
workshop.
Daily maintenance
• Check throttle trigger and throttle trigger lockout function.
• Check that the stop switch works.
• Check that the blades do not move when the engine is
idling or when the choke is in the start throttle position.
• 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.
• Check that the blade is properly centered, sharp and
without cracks.
• Check that the hand guard is not damaged. Replace the
guard if damaged.
• Check that the screws that hold the blades together are
correctly tightened.
• Check that the transport guard for the blade is intact and
that it can be secured correctly.
• Check that nuts and screws are tight.
• Check that there are no fuel leaks from the engine, tank or
fuel lines.
Weekly maintenance
• Check the starter and starter cord.
• Check that the vibration damping elements are not
damaged.
• 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.
• Fill the gear housing with grease. This should be carried
out approximately every 20 working hours.
• Clean the air filter.
• Clean or replace the spark arrestor mesh on the muffler
(only applies to mufflers without a catalytic converter).
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.
• Replace the air filter.
• Clean or replace the spark arrestor mesh on the muffler
(only applies to mufflers without a catalytic converter).