Manitou MH25-4 T BUGGIE 4ST3A - C - Every 250 Hours of Service

C - EVERY 250 HOURS OF SERVICE
Carry out the operations described previously as well as the following operations.
C1 – FUEL FILTER
CLEAN

IMPORTANT

Dust and impurities in the fuel will cause the injection pump and injectors to wear more quickly. To avoid this,
regularly clean the fuel filter housing.
- Lift up the overhead guard or the cab (see: 2 - DESCRIPTION: INSTRUMENTS AND
CONTROLS).
- Close the fuel valve 1 by setting to position B.
- Carefully clean the outside of the filter and its holder, to prevent dust from getting
into the system.
- Unscrew the retaining ring 2, remove the housing 3 and clean the inside using a
brush immersed in clean diesel oil.
- Remove the cartridge filter 4 and dip in diesel oil to rinse.
- Refit the unit.
- Open the fuel valve 1 by setting to position A.
- Bleed the fuel circuit (see: 3 - MAINTENANCE: H1 - FUEL SYSTEM).
C2 – ALTERNATOR/FAN/CRANKSHAFT BELT TENSION
CHECK - ADJUST

IMPORTANT

If the compressor belt has to be changed, 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).
- Check the belt for signs of wear and cracks and change if necessary (see: 3 -
MAINTENANCE: FILTERS CARTRIDGES AND BELTS).
- Check the belt tension between the pulleys of the crankshaft and of the compressor.
- Under pressure applied by the thumb (98 N), the tension should be between 7
and 9 mm.
- Adjust if necessary.
- Loosen screws 1 by two to three turns.
- Swivel the alternator assembly so as to obtain the required belt tension.
- Retighten the screws 1.
3 - 16
A
B
1
4
2
3
1
1
647468 (26/11/2018)
M
SI 25/30/35 ... 4ST3A ; MH 25-4 ... 4ST3A