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Maintenance: Fuel System
Twin fuel pre-filter/water separator
WARNING! Working on or approaching a
running engine is a safety hazard. Beware of
rotating parts and hot surfaces.
The dual filter is equipped with a pressure gauge (1)
indicating when it is time to change the filter insert.
The filter inserts must be changed according to the
maintenance schedule recommendations or earlier if
the pressure gauge indicates a vacuum of 6–10 inHg
at idling speed or 16–20 inHg at full engine speed/
load.
Drainage
Place a receptacle under the filter. Drain off water
and contaminants through the plug (1) in the bottom
of the bowl.
IMPORTANT! Do not drain until a few hours after
stopping.
Change the filter elements
The dual filter inserts can be changed while the engi-
ne is running as the flow of fuel can be cut off to one
filter container at a time.
The flow of the fuel is governed by putting the knob
(1) in the following positions:
A: Normal running (both filters connected).
B: Left filter insert can be changed.
C: Right filter insert can be changed.
D: Both filters turned off.
Plus d'informations sur : www.dbmoteurs.fr
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