Maintenance and care
23
Fuel filter
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 the engine is swiched off.
D Loosen filter cartridge by means of tape
wrench, unscrew it by hand and take it
off
D Moisten the seals on the new filter car-
tridge with fuel
D Screw on the filter cartridges and
tighten them vigorously by hand
D Bleeding the fuel system
D Check filter for leaks
Caution:
Used fuel filters are classed as
dangerous waste and must be dis-
posed of accordingly.
Bleeding the fuel system
An arrow on the filter head indicates the
direction of fuel flow.
D Unscrew bleed screw of first filter in
direction of flow by one or two turns
D Actuate tappet of hand primer until fuel
emerges without bubbles
D Screw in and tighten plunger on hand
pump
D Close bleed screw again
D Repeat this procedure at the second
bleed screw
D Check fuel system for leaks
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