Man D 2840 LE 301, Repair Manual

Page: 39 / 194

Removing and attaching fuel filter, exchanging filter cartridge
37
Removing and attaching fuel filter
Fig. 1
Remove the fuel lines
À
.
Remove the mounting bolts
Á
and take off fuel
filter.
Install in reverse order. The fuel lines are to be fit-
ted with new sealing rings.
Changing fuel filter cartridge
Parallel box fuel filter
Only when the engine is swiched off.
Fig. 2
D
Loosen the filter cartridge with a tape wrench,
unscrew it by hand and take it off
D
Moisten the seals on the new filter cartridge
with fuel
D
Screw on the filter cartridges and tighten them
vigorously by hand
D
Vent the fuel system
D
Check the filter for leaks
Caution:
Used fuel filters are classed as dangerous
waste and must be disposed of accord-
ingly.
Change − over fuel filter
Fig. 3
Where the changeover − type filter is installed, the
servicing procedure is for the filter side requiring to
be shut off with the engine running. During continu-
ous operation, the selector lever should be placed
in a position where both filter halves are in opera-
tion.
Caution:
Do not leave selector lever in any inter-
mediate position because this would be
liable to interfere with fuel supply. If in
doubt stop the engine to change the fuel
filter.
The filter cartridge is then to be exchanged as des-
cribed under parallel box filter (Fig. 2).
1
2
1
Continuous operation (both
filter halves in operation)
Right − hand filter cut out
Left − hand filter cut out