D5 – FUEL PRE-FILTER
REPLACE
MSI25 T 4ST3A - MSI30 T 4ST3A - MSI35 T 4ST3A - MH25-4 T BUGGIE 4ST3A
- Lift up the overhead guard or the cab (see: 2 - DESCRIPTION: INSTRUMENTS AND
CONTROLS).
- Remove pre-filter 1 from clip 2.
- Remove and discard pre-filter 1.
- Fit a new pre-filter (see: 3 - MAINTENANCE: FILTERS CARTRIDGES AND BELTS).
- Place the new pre-filter under clip 2.
- Open the fuel valve 1 by setting to position A.
D6 – FUEL PRE-FILTER CARTRIDGE
REPLACE
MSI25 36KW 4ST3A - MSI30 36KW 4ST3A - MSI35 36KW 4ST3A - MH25-4 BUGGIE 36KW 4ST3A
- Lift up the overhead guard or the cab (see: 2 - DESCRIPTION: INSTRUMENTS AND
CONTROLS).
- Carefully clean the outside of the pre-filter and its holder, to prevent dust from
getting into the system.
- Close the fuel valve 1 by setting to position B.
- Unscrew the retaining ring 2, remove the housing 3 and clean the inside using a
brush immersed in clean diesel oil.
- Discard the filter cartridge 4.
- Refit the assembly with a new cartridge (see: 3 - MAINTENANCE: FILTERS CARTRIDGES
AND BELTS).
D7 – ALTERNATOR/FAN/CRANKSHAFT BELT
REPLACE
IMPORTANT
Check the tension again after the first 20 hours of operation.
- Lift up the overhead guard or the cab (see: 2 - DESCRIPTION: INSTRUMENTS AND
CONTROLS).
- Loosen screws 1 by two to three turns.
- Swivel the alternator assembly so as to free the belt 2 and replace with a new one
(see: 3 - MAINTENANCE: FILTERS CARTRIDGES AND BELTS).
- Adjust the belt tension between the crankshaft and alternator pulleys.
- Under pressure applied by the thumb (98 N), the tension should be between 7
and 9 mm.
- Retighten the screws 1
3 - 20
1
2
1
1
1
2
B
A
1
4
2
3
A
B
1
647468 (26/11/2018)
SI 25/30/35 ... 4ST3A ; MH 25-4 ... 4ST3A