Servicing and maintenance works Aspiration system Never fill the dust container (3) with lubri- cating oil! z Loosen wing nut (1) and lift off housing cover (2). z Remove the dust container (3) from the base (4) and empty it. Clean the container using a brush and clean diesel fuel. Then dry. z Place the dust container (3) on the base (4) and tighten the housing cover (2) with wing nut (1). 52 © 2009 Emptying the cyclone precleaner Clean the dust discharge valve of the dry air filter z Empty the dust discharge valve (1) by pressing together the discharge slit. z Remove any caked dust by pressing together the upper section of the valve. z Clean the discharge slit.
1 z The dry air filter is maintained according to a maintenance switch or maintenance indicator. z Maintenance is necessary when: the yellow warning light of the maintenance switch lights up when the engine is running. the red field (1) of the maintenance indica- tor is fully visible. z After carrying out maintenance work, reset the signal by pressing the button on the mainte- nance indicator. The maintenance indicator is now ready for operation again. Maintenance indicators for dry air filter 6