Air Cleaner - Volvo A35E Operator's Manual

Service and maintenance
112

Air cleaner

Air cleaner
The air cleaner prevents dust and other impurities from entering
the engine. The air first passes the primary filter and then the
secondary filter.
The degree of engine wear depends largely on the cleanliness of
the induction air. Therefore, it is very important that the air cleaner
should be checked regularly and maintained correctly. Observe
great cleanliness when working with the air cleaner and filters.
IMPORTANT! Do not, under any circumstances, run the
engine without a filter or with a damaged one.
Check regularly that hose and pipe connections from the air
cleaner to the engine induction manifold do not leak.
Always have a spare air filter at hand and keep it well
protected from dirt.
Primary filter, cleaning/replacing
Clean or replace the filter every 1000 hours. If the control lamp
lights up earlier and an alarm screen is shown, see page 37,
cleaning or replacement must be carried out immediately. The
time between cleaning/replacement depends entirely on the
working environment of the machine.
The filter may be cleaned, at the most, five times. Thereafter the
filter must be replaced. Also replace the filter, if it is damaged.
If the control lamp continues to light after cleaning/replacement,
the secondary filter must be replaced, see page 113.
NOTE! At the same time clean the air cleaner cover. Under
dusty and wet conditions, the cover should however be
cleaned more often.
Take care of filters/oils/liquids in an environmentally safe way,
see page 91.
Mechanical cleaning
1 Carefully tap the end of the primary filter against a soft and
clean surface.
NOTE! Do not tap against a hard object.
Cleaning with compressed air
1 Use clean and dry compressed air with a max. pressure of
500 kPa (5 bar) (73 psi). Do not hold the nozzle closer than
3–5 cm (1–2 in).
2 Blow the filter clean from the inside along the folds.
Checking filter
1 Check the filter with the aid of a lamp.
2 If there is the smallest hole, scratch, crack or other damage, the
filter must be discarded.
NOTE! To discover damage more easily, this check should be
made in a darkened room.