Husqvarna PT26D Workshop Manual page 31

Coolant and antifreeze
The cooling system must not be filled with
salt water, this causes corrosion damage to
the engine.
Change the coolant if it is discoloured or dirty.
The cooling system must then be thoroughly
flushed.
Coolant must be a mixture of 50% antifreeze
fluid and 50% soft water. Anticorrosion agent
in the coolant will be diluted if a reduced mix-
ture is used. A higher mixture can have a
negative effect on the cooling capacity.
IMPORTANT INFORMATION
Never fill a hot engine with cold coolant.
Risk of extensive engine damage.
Only use a glycol based antifreeze that is
approved by the applicable norms
BS 6580:1992 or ASTMD 3306-89 or
AS 2108-1977 (indicated on the packaging).
The antifreeze agent must be intended for
use with light alloy engines and contain addi-
tives that protect the engine's cooling system
against corrosion.
IMPORTANT INFORMATION
If you use the incorrect type or mix differ-
ent types of antifreeze agents, a chemical
reaction may occur, which causes over-
heating and severe engine damage. These
are not covered by the warranty.
30
English-
DESIGN AND FUNCTION
Glycol Water
60% 40%
50% 50%
40% 60%
Mixing table
Freezing
point
- 47 °C
- 37 °C
- 25 °C