DAF CF65, CF75, CF85 Series . Manual - part 427

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Removal and installation

CE ENGINE FUEL SYSTEM

ΧΦ65/75/85 series

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5.7 REMOVAL AND INSTALLATION, FUEL FINE FILTER

When removing the fuel fine filter, a 
quantity of fuel will escape. Collect 
the fuel and avoid the risk of fire.

Removing the fuel fine filter
1.

Place a container beneath the fuel fine filter 
and remove the filter.

Note:
The fuel fine filter is a disposable filter and 
must therefore not be cleaned and re-used.

Installing the fuel fine filter

Note:
Do not fill the fine filter with fuel until it has 
been fitted. The fine filter is filled with fuel by 
the primer pump after it has been fitted. This 
considerably reduces the risk of dirt getting 
into the fuel system.

1.

Check by hand whether the coupling piece 
for the filter attachment is securely attached.

2.

Lightly lubricate the filter sealing ring with 
clean engine oil.

3.

Fit the filter element onto the housing. 
Tighten the filter element until the sealing 
ring abuts. Tighten the filter element a further 

∂ to • turn by hand.

4.

Bleed the fuel system. See "Inspection and 
adjustment".

5.

Start the engine and check the fuel system 
for leaks. If necessary, retighten the filter by 
hand.

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Removal and installation

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ΧΦ65/75/85 series

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5.8 REMOVAL AND INSTALLATION, FUEL PREFILTER/WATER SEPARATOR 

FILTER ELEMENT

When removing the fuel prefilter/
water separator, a quantity of fuel 
will escape. Collect the fuel and 
avoid the risk of fire.

Racor fuel prefilter/water separator

Removing the fuel prefilter/water separator 
filter element
1.

Place a tray beneath the filter to capture any 
escaping fuel.

2.

Drain the fuel from the filter element by 
unscrewing the vent plug (2) and opening the 
drain plug (8).

3.

If fitted, disconnect the water sensor (6) and 
the heating element (7) connectors.

4.

Remove the filter element (4) together with 
the bottom cover (5) and clean the O-ring 
seal. 

Installing the fuel prefilter/water separator 
filter element
1.

Apply a thin layer of engine oil to the O-ring 
and the new sealing ring.

2.

Fit the bottom cover (5) onto the new filter 
element (4).

3.

Fit the bottom cover (5) together with the new 
filter element (4) onto the filter housing (3).

4.

Hand-tighten the new filter.

5.

If fitted, attach the water sensor and heating 
element connectors.

6.

Vent the fuel system. See "Inspection and 
adjustment".

7.

Start the engine and check for leaks. If 
necessary, retighten the filter element (4) of 
the fuel prefilter/water separator by hand.

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Removal and installation

CE ENGINE FUEL SYSTEM

ΧΦ65/75/85 series

4

2

Fleetguard fuel prefilter/water separator

Removing the fuel prefilter/water separator 
filter element
1.

Place a tray beneath the filter to capture any 
escaping fuel.

2.

Remove the plug (3) from the water 
sensor (2).

3.

Remove the filter element (1) of the fuel 
prefilter/water separator by turning it anti-
clockwise.

4.

Remove the water sensor (2) from the filter 
element (1).

Installing the fuel prefilter/water separator 
filter element
1.

Check by hand whether the coupling for the 
filter attachment is securely attached.

2.

Lightly lubricate the sealing ring with engine 
oil.

3.

Fit the fuel prefilter/water separator filter 
element (1) until the sealing ring abuts. 
Tighten the filter element a further 

∂ to • 

turn by hand.

4.

Turn the water sensor (2) onto the filter 
element until it abuts. Turn the water sensor 
a further approx. 

 -  turn.

Note:
Over-tightening the water sensor (2) may 
damage the sensor and/or cause leakage.

5.

Fit the plug (3) of the water sensor (2).

6.

Vent the fuel system. See "Inspection and 
adjustment".

7.

Start the engine and check for leaks. If 
necessary, retighten the filter element (1) of 
the fuel prefilter/water separator by hand.

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Removal and installation

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ΧΦ65/75/85 series

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5.9 REMOVAL AND INSTALLATION, FUEL LEVEL ELEMENT

When the fuel level element is 
removed, a quantity of fuel will 
escape. Collect this fuel, bearing in 
mind the risk of fire.

Removal, fuel level element
1.

Disconnect the earth lead from the battery 
terminal.

Note:
To prevent dirt from entering, first clean the 
fuel tank.

2.

Remove the connector from the fuel level 
element.

3.

Remove the fuel pipes from the fuel level 
element.

4.

Turn the fuel level element a quarter turn 
anti-clockwise.

5.

Carefully remove the fuel level element from 
the fuel tank.

6.

Replace the O-ring.

Installation, fuel level element
1.

Check that the fuel pipes are fitted correctly 
in the tank filter.

2.

Fit the fuel level element carefully in the fuel 
tank.

3.

Insert the fuel level element into the hole of 
the tank and turn it clockwise a quarter turn.

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