DAF CF65, CF75, CF85 Series . Manual — part 473

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4-19

Removal and installation

XE ENGINE FUEL SYSTEM

CF65/75/85 series

4

8

4.11 REMOVAL AND INSTALLATION, FUEL PREFILTER/WATER SEPARATOR

FILTER ELEMENT

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When removing the fuel prefilter/

water separator, a quantity of fuel

will escape. Collect the fuel to avoid

the risk of fire.

Version: Racor

Removing the fuel prefilter/water separator
filter element
1.

Drain the fuel from the filter element by

unscrewing the bleed plug (2) and opening

the drain plug (8).

2.

If fitted, disconnect the water sensor (6) and

the heating element (7) connectors.

3.

Remove the filter element (4) and the bottom

cover (5). Clean the O-ring seal.

Installing the fuel prefilter/water separator
filter element
1.

Apply a film 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) to the filter housing (3).

4.

Hand-tighten the new filter.

5.

If fitted, attach the water sensor and heating

element connectors.

6.

Check whether the drain plug (8) is tight.

7.

Open the air-bleeder plug (2) a couple of

turns.

8.

Operate the primer pump (1) until fuel comes

out of the air-bleeder plug.

9.

Close the air-bleeder plug (2).

10. Start the engine and check for leaks. If

necessary, retighten the filter element (4) by

hand.

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2

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4

5

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6

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XE ENGINE FUEL SYSTEM

4-20

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Removal and installation

8

CF65/75/85 series

4

Version: Mann + Hummel

Removing the fuel prefilter/water separator
filter element
1.

Drain the fuel from the filter element by

unscrewing the bleed plug (2) and opening

the drain plug (6).

2.

If fitted, unplug the connectors of the water

sensor and the heating element.

3.

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 film 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) to the filter housing (3).

4.

Hand-tighten the new filter.

5.

If fitted, attach the water sensor and heating

element connectors.

6.

Check whether the drain plug (6) is tight.

7.

Open the air-bleeder plug (2) a couple of

turns.

8.

Operate the primer pump (1) until fuel comes

out of the air-bleeder plug.

9.

Close the air-bleeder plug (2).

10. Start the engine and check for leaks. If

necessary, retighten the filter element (4) by

hand.

G0 00 266

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4

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5-1

Disassembly and assembly

XE ENGINE FUEL SYSTEM

CF65/75/85 series

4

8

5. DISASSEMBLY AND ASSEMBLY

5.1 DISASSEMBLY AND ASSEMBLY, PUMP HOUSING

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When disassembling the pump

housing, fuel will escape. Collect

this fuel, bearing in mind the risk of

fire.

}

Dirt in the system can lead to

significant damage to fuel system

components.

Disassembling the pump housing
1.

Remove the pump housing. See "Removal

and installation".

Note:

If after removal the pump units are not

replaced in the same position, they must be

re-calibrated.

2.

Remove the pump units. See "Removal and

installation".

3.

Remove the tappet rollers.

4.

Remove the fuel lift pump. See "Removal

and installation".

5.

Remove the cover and check the O-ring. If

necessary, replace the O-ring.

6.

Remove the pulse disc from the pump

camshaft.

7.

Remove the locking plate from the pump

camshaft.

Note:

When removing the sealing plates, an

amount of lubricating oil will escape. Collect

this lubricating oil.

8.

Remove the sealing plates and the gaskets.

9.

Remove the pump camshaft by manoeuvring

it vertically out of the pump housing.

10. Remove the slide bearings using the special

tools (DAF no. 1329444) and

(DAF no. 0535626).

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XE ENGINE FUEL SYSTEM

5-2

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Disassembly and assembly

8

CF65/75/85 series

4

Assembling the pump housing

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When fitting the front bearing shell it

is important that the oil bore in the

bearing housing aligns with the hole

in the slide bearing.

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