Husqvarna TC 85 19/16 2020 Owner's Manual page 112

16 SERVICE WORK ON THE ENGINE
110
Danger
Danger of poisoning Exhaust gases are toxic and
inhaling them may result in unconsciousness and
death.
–
Always make sure there is sufficient ventilation
when running the engine.
–
Use effective exhaust extraction when starting or
running the engine in an enclosed space.
–
Start the engine and check that it is oil-tight.
Finishing work
–
Check the gear oil level. ( p. 108)