D
D
4
4 - CHANGE THE OIL IN THE FRONT AND REAR AXLE
DIFFERENTIAL
Put the truck on a horizontal surface with the engine off and the differential
oil still warm.
Drain the oil from the front axle differential.
Place a can under drain plugs “2” (fig. D4) and allow the oil to drain out.
Remove level plug “3” (fig. D4) and fill plug “1” (fig. D4) to ensure that all
oil drains out.
Refit and tighten plugs “2” (fig. D4).
Fill with oil (see “LUBRICANT” chart) through fill hole “1” (fig. D4).
The level is correct when the oil reaches the top of level hole “3” (fig. D4).
Check for any leaks from the drain plugs.
Refit and tighten level plug “3” (fig. D4) and fill plug “1” (Fig. D4).
Repeat these operations for the rear axle.
D
D
5
5 - REPLACE THE AIR FILTER CARTRIDGE
The air taken in by the engine is filtered by a dry air filter; the truck must
not be used without the air filter or with a damaged filter.
Slacken nut 1(fig. D5/1) and remove cover 2 (Fig. D5/1).
Then unscrew nut 3 (Fig. D5/2) which fixes filter cartridge 4 (Fig. D5/2)
and remove it.
Wipe the inside of the filter with a clean, damp cloth that does not leave
residue.
Never wash an air filter cartridge.
Fit a new cartridge having the same features (“FILTER ELEMENTS AND
BELTS TABLE”) in place of the one removed, fix it by means of butterfly
nut 3 (Fig. D5/2).
Refit cover 2 (Fig. D5/1) with the valve facing downwards and lock it by
means of nut 1 (Fig. D5/1).
D
D
6
6 - CLEAN THE CAB VENTILATION FILTER
Lift up protective casing “1” (Fig. D6).
Lift out cabin ventilation filter “2” (Fig. D6).
Clean the filter with a compressed air jet.
Check its condition and change if necessary with another of the same char-
acteristics, see table (“FILTER ELEMENTS AND BELTS”).
Refit the filter and protective casing.
MHT 10120 L M
Series
17
3
FIG. D6
2
1
FIG. D4
FIG. D5/2
FIG. D5/1
2
1
4
3
2
2
2
3
1