3.6. Lubrication and Maintenance Operations
3.6.19. Engine cooling liquid level check
Check the concentration via refractometer.•
Inspect always before winter season.
Unless concentration for -36 °C (-33 °F)
has been measured, you must adjust it
through adding antifreeze into the cool-
ing system.
Add antifreeze according to Section
3.2.3.
Observe re precautions during replace-
ment!
Replace in ventilated rooms with no re
hazard.
Do not smoke or use open ame when at
work.
Use the recommended original lters,
only.
Make no over-tightening of lters, the
thread and gasket may get damaged.
Avoid fuel leaking into soil.
Store used lters in environmentally
friendly manner.
Use a hand pump to add fuel into the lter.•
Inspect the lter tightness when engine is started!•
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