ENG - 28
03917401.ENG rev. 0
(4)
Control and eventual adjustment of the alternator belt
tension:
Never adjust the belt tension with engine running.
An excessive tension may cause a quick wear of the belt and
alternator bearings. Otherwise, if the belt is excessively loose or
has oil, and insufficient load due to the belt skidding can be
caused.
Check belt tension by pressing on one side with your thumb. Belt
deflection should be about
11 mm
Fig. 7.2.4.
(5)
Water filter cleaning:
It is important to fit between the engine and the bottom cock a filter
to avoid that any impurities existing in these a water might clog the
cooling conducts.
Filter shall be cleaned every 200 hours by loosening the wing nut
and removing the filtering component. Clean the filter and fit it
again taking care the cover is well seated on the O-ring (Fig. 7.4).
Then the engine is started to check if water is leaking from the
cover.
Fig. 7.2.5.
(6)
Change cooling circuit water:
Drain off all the circuit water by opening the two drain cocks, one
in the exchanger an other in the cylinder block.
When in cold climates, if the engine is not to be used for a long
period, it is advisable to drain the water circuit.
Once this operation has been completed, close the drain cocks
and fill to the hole in the tank cap (see heading 4.2.2 of this
manual).
Fig. 7.2.6.
