Volvo Penta D4 Series Operator's Manual page 76

Maintenance
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74
Crankcase Ventilation, Filter
Change
1 Unscrew the cover and remove the old filter.
2 Clean the filter cover/housing as necessary. Be
careful to prevent contamination from entering the
engine.
3 Install the new filter.
4 Screw the cover back in place.
IMPORTANT!
Scrap the old filter. They may not be cleaned.
Air Filter, Change
1 Unscrew the air filter cover and remove the old filter.
2 Clean the air filter cover/housing as necessary. Be
careful to prevent contamination from entering the
engine.
3 Install the new filter and air filter cover.
IMPORTANT!
Scrap the old filter. They may not be cleaned.
47702599 12-2011