Man D 2848 LE 401 Operating Instructions Manual page 47

Parallel fuel filter
Draining moisture:
Unscrew drain plugs at every oil change
until moisture has been discharged and
clean fuel flows out.
Changing fuel filter
Only when engine is switched off
D Loosen filter with tape wrench and
remove it
D Wet seal on new filter with fuel
D Screw on filter by hand
D After this, bleed the fuel system
D Check filter for leaks
Caution:
Used fuel filters are classed as
dangerous waste and must be dis-
posed of accordingly.
Change-over fuel filter
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 continuous oper-
ation, the selector lever should be placed
in a position where both filter halves are in
operation.
Caution:
Do not leave selector lever in any
intermediate position because this
would be liable to interfere with
fuel supply. If in doubt stop the
engine to change the fuel filter.
Maintenance and care
49
Continuous operation
(both filter halves
in operation)
Right-hand filter
cut out
Left-hand filter
cut out