DAF CF65, CF75, CF85 Series . Manual — part 469

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Removal and installation

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CF65/75/85 series

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4.2 REMOVAL AND INSTALLATION, INJECTOR

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Due to the presence of overpressure

in the fuel tank, fuel may run into the

cylinders when removing injectors.

Therefore, when removing injectors,

always first remove the tank cap.

Collect any fuel from the injectors.

Removing the injector
1.

Disconnect the earth lead from the battery

terminal.

2.

Remove the injector pipes as a set.

3.

Remove the valve cover.

4.

Remove the DEB.

5.

Remove the attachment bolt (3) from the

injector clamp. To remove the injector and

the clamping piece, only use the special

tools (DAF no. 1329412) and

(DAF no. 0694928).

Note:

If during removal one or more copper shims

(1) remain in the injector sleeve, the injector

will be reinstalled in a higher position.

As a result, instead of spraying into the

combustion chamber of the piston, the fuel

will be sprayed onto the piston ring. This may

seriously damage the piston.

There will be inadequate sealing between

the O-ring (2) of the injector and the cylinder

head. Fuel leaking from the injector can flow

freely into the engine and dilute the

lubricating oil.

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Removal and installation

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CF65/75/85 series

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Installing the injector
1.

Clean the injector sleeve. See "Cleaning".

2.

Fit a new O-ring (1) and a new copper shim

(2) to the injector. Apply a little acid-free

grease to both rings.

3.

Inspect the valve sleeve seal (3) of the

injector. Replace it if it is leaking and/or

damaged.

Note:

Make sure that the injector clamp is installed

correctly.

4.

Fit the injector together with the injector

clamp (4) and tighten the attachment bolt to

the specified torque. See "Technical data".

5.

Fit the DEB.

6.

Adjust the DEB clearance.

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Removal and installation

XE ENGINE FUEL SYSTEM

CF65/75/85 series

4

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4.3 REMOVAL AND INSTALLATION, INJECTOR SLEEVE

Removing the injector sleeve
1.

Partially drain the coolant.

2.

Remove the injector.

Insert a ball of crumpled paper into the

injector sleeve to prevent metal particles

from entering the engine.

3.

Tap a thread (M22 x 1.5) over a length (A) of

approx. 20 mm in the injector sleeve that is to

be removed.

Turn the special tool (DAF no. 1310425) into

the injector sleeve and, using the special tool

(DAF no. 0694928), remove the injector

sleeve.

Installing the injector sleeve
1.

Clean the injector sleeve opening

thoroughly.

Note:

Fit the dry injector sleeve in the cylinder

head.

Use the special tool (DAF no. 1329305) to

tap the injector sleeve into the cylinder head.

2.

Fit the injector.

3.

Top up the cooling system.

4.

Start the engine and check the engine for

leaks.

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Removal and installation

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4.4 REMOVAL AND INSTALLATION, PUMP UNIT

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When removing the pump unit, fuel

will escape. Collect this fuel, bearing

in mind the risk of fire.

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Dirt in the fuel system can lead to

significant damage to pump units

and housing.

Removing the pump unit
1.

Disconnect the earth lead from the battery

terminal.

2.

Remove the electrical connections from the

pump unit.

3.

Remove the fuel pipes from the pump

housing.

4.

Remove the pressure relief valve from the

pump housing.

5.

Let the fuel leak from the pump housing.

6.

Remove the injector pipes in sets and plug

the pump units and injectors so that no dirt

can enter.

7.

If it is necessary to replace the pump unit(s),

the pump unit must be marked so that it can

be replaced in the same position in the pump

housing.

Note:

The pump unit may be under spring tension,

depending on the position of the camshaft in

the pump housing.

8.

Remove the attachment bolts from the pump

unit.