4-10.2
Oil bath air cleaner. (Figure 4-9)
Figure 4-9. Air Cleaner
a.
Check must be made after the engine has been stopped for at least one hour so that the oil has had
time to drip from filter (1) into bowl (2).
b.
Take down bowl (2) of the oil bath air cleaner. Remove sludge and clean bowl. Fill fresh motor oil into
the bowl up to the oil level mark.
c.
If the oil has already been changed several times or is heavily contaminated, unscrew filter (1) and wash
it thoroughly in diesel fuel after having removed bowl. Wait about 15 minutes before reassembling the
filter parts to give the fuel time to drip out.
d.
Replace filter element (3) if it is soiled or if it sits no longer close to the filter wall or to the central tube.
e.
Take care that the connection between air cleaner and intake pipe is perfectly tight. Check that the
rubber washer seal (4) is not defective.
4-10.3
Engine Oil. Always change oil when the engine is still warm, as warm oil runs off more easily. To do this,
screw off drain plug in the oil sump. After the old oil has drained off, screw in plug again and fill with fresh oil through
filler neck in the cylinder head up to the upper dipstick mark.
4-10.4
Cleaning cooling air strainer and cooling fins.
a.
Cleaning the cooling fins by dry means, e. g. a wire and, if possible, compressed air. It is advisable to
start blowing through the cooling fins from the exhaust side. If diesel fuel or a cold detergent is used for
cleaning, it is important, after allowing for an adequate soaking-in period, to wash the engine parts with
a powerful water jet.
4-27
