Filter For Fuel Tank Ventilation; Priming The Fuel System - Volvo FM Handbook

2 Remove the filter using a filter wrench
3 Moisten the new filter gaskets with diesel
4 Screw on the filter by hand until the gasket
contacts the sealing surface
5 Then turn an additional 3/4 to 1 turn (or as
specified by the marking on the filter).
6 Bleed the fuel system
7 Start the engine
8 Make sure the filter is not leaking

Filter for fuel tank ventilation

The filter is used in certain markets and should be
replaced every 24th month. Under certain conditions
the filter may need changing more often, e.g. when
driving in dusty environments.

Priming the fuel system

Vent the fuel system
Vent the fuel system if:
• The engine has been stationary for a long period.
• The tank has been run dry.
Venting
1 Stop the vehicle
2 Apply the parking brake
3 Tilt the cab
4 Remove sound insulation over the left chassis
member
5 Pump using the hand pump on the fuel filter
bracket, pump 200–300 times, until resistance is
Maintenance 537
Note!
The new filter must be empty when
it is mounted. Under no conditions
may it filled with fuel before
mounting.
Note!
If there is a water separator fitted,
change the filter in this at the same
time as changing the fuel filter. At
the same time clean the water level
sensor in the plastic bowl under the
filter using a soft cloth.
Note!
Never prime the system using the
starter motor.