Volvo TAMD75P Operator's Manual page 54

Maintenance: Fuel system
1
C
52
1
1
A
B
D
Fuel pre-filter. Drainage
The fuel pre-filter/water separator are accessories
and available as single or dual models.
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 af-
ter stopping.
Fuel pre-filter. Check
The dual filter is equipped with a pressure gauge (1)
indicating when it is time to change the filter inserts.
The filter inserts must be changed according to the
maintenance schedule recommendations or earlier if
the pressure gauge indicates a vacuum of 6–10 in.
Hg at idling speed or 16–20 in. Hg at full engine
speed/load.
WARNING! Working on or approaching a run-
ning engine is a safety hazard. Beware of rotat-
ing parts and hot surfaces.
Fuel pre-filter. Change filter elements
The fuel pre-filter/water separator are accessories
and available as single or dual models.
The dual filter inserts can be changed while running
as the flow of fuel can be cut off to one filter container
at a time.
The flow of 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.