Change Coolant; Inspecting The Muffler; Checking The Tyre Pressure - Husqvarna P 520D Operator's Manual

Change coolant

Correct coolant level is important for the cooling system to
function properly. Therefore the coolant level must be
checked regularly.
The coolant should be visible when the filler cap is removed.
Repeated coolant loss normally indicates leakage. The
cooling system should be checked by a professional. It is not
sufficient just to top up with coolant.
If the engine boils, coolant will be lost. Open the radiator cap
and allow the coolant to cool down. Allow the engine cool
before filling.
The cooling system must not be filled with salt water, as this
will cause corrosion damage to the engine.
Replace coolant if it is discoloured or cloudy
The cooling system must then be thoroughly flushed.
Use only glycol-based antifreeze approved to BS 6580:1992
or ASTM D 3306-89 or AS 2108-1977 (indicated on the
packaging).
The antifreeze must be intended for alloy engines.
Your Husqvarna supplier can provide the right type of
antifreeze.
Use antifreeze all year round and even in climates where
there is no risk of frost.
Antifreeze contains additives that protect the engine cooling
system against corrosion
The coolant and antifreeze should be changed at least every
two years.
WARNING! Do not open the cap quickly
!
when the engine is hot without first
releasing the pressure by partially opening
the cap. Risk of burns. Wear protective
gloves and goggles.
WARNING! Antifreeze and coolant are
!
dangerous to health. Keep them in storage
in labelled containers and away from
children and animals.
• When emptying loosen the lower hose to the radiator.
34 –
English
MAINTENANCE AND SERVICE
• Remove the filler cap.
Fill only with antifreeze and water mixed according to the
following table.
Glycol Water
60 % 40 %
50 % 50 %
40 % 60 %
IMPORTANT! Never add cold coolant to a hot engine. Risk
of comprehensive engine damage.
• Check the coolant when the engine has run for a few
minutes after filling. There may have been air in the
system that has been released.
Inspecting the muffler
WARNING! The muffler gets very hot in use
!
and remains so for a short time afterwards.
Do not touch the muffler if it is hot!
The muffler is designed to keep noise levels to a minimum
and to direct exhaust fumes away from the user.
• Check regularly that the muffler is complete and secured
correctly.

Checking the tyre pressure

The tyre pressure should be 1.5 bar/150 kPa/22 PSI for all
wheels
The air pressure in the cutting unit pivot wheel must be 150
kPa/1.5 bar/22 psi.
IMPORTANT! Different tyre pressures on the front tyres will
result in the blades cutting the grass at different heights.
Freezing point
-47 °C / -53 °F
-37 °C / -35 °F
-25 °C / -13 °F