Volvo VAH 2013, Operator'S Manual, Page: 114 / 175

110 Operator's Manual Vehicle Maintenance VN,
VHD
Fuel System Service
Changing the Primary Fuel Filter
WARNING
To avoid potential fire hazard, DO NOT service any part of the fuel system while
smoking or in the presence of flames, sparks, or hot surfaces, or when working on
an operating engine. Failure to follow these precautions can result in fire. To guard
against burns from direct contact with hot fuel, wear adequate protective clothing
(face shield, heavy gloves and apron, etc.) when working on a hot engine.
CAUTION
Never fill filter with fuel before installing. Contaminated fuel causes accelerated
wear to fuel system components.
CAUTION
It is very important to maintain high cleanliness when working in the fuel system. If
dirt is mixed in with the fuel after it is filtered, it will cause damage to the injectors.
Dirt can also cause air leakages that rob the engine of power.
Failure to change the primary fuel filter at the recommended intervals could result
in reduced power.
1 Open the drain valve and drain off some fuel into a container. Remove the filter
cartridge together with the bowl.
2 Separate the filter and the bowl. Clean and dry the bowl. Attach it to a new filter.
Use new seals at both the bowl and filter head joint. Install both on the engine or
vehicle.
3 Purge air from the filter by operating the primer pump to draw fuel and fill the filter.
When using the hand primer, approximately 100 strokes will be required.
4 Start the engine and check for leaks. Correct any leaks with the engine stopped.