Husqvarna PT-26D Operator's Manual page 53

WARNING:
Do not open the cap quickly when the engine is hot,
first release the overpressure with the cap partially
slackened off. Risk of burns. Use protective gloves
and protective goggles.
WARNING:
The antifreeze fluid and coolant are hazardous to
health. Store them in marked containers that are
inaccessible to children and animals.
When draining the cooling system, both the taps must
be opened.
Coolant draining engine block
Coolant draining lower hose
Presentation
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8009-884
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