DAF CF65, CF75, CF85 Series . Manual - part 430

©

 200416

5-29

Removal and installation

CE ENGINE FUEL SYSTEM

ΧΦ65/75/85 series

4

2

Low-pressure fuel pipes fitted with John 
Guest quick-release couplings

Removing low-pressure fuel pipes
1.

Disconnect the fuel pipe by pressing in both 
lips of the quick-release coupling and 
removing the pipe from the quick-release 
coupling.

2.

Plug the openings.

Fitting low-pressure fuel pipes
1.

Clean the quick-release coupling parts.

2.

Fit the pipe on the quick-release coupling of 
the component and push the pipe onto it until 
a clear resistance can be felt and the quick-
release coupling audibly clicks.

3.

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

4.

Start the engine and check the fuel system 
for leaks.

CE ENGINE FUEL SYSTEM

5-30

©

 200416

Removal and installation

2

ΧΦ65/75/85 series

4

©

 200416

6-1

Cleaning

CE ENGINE FUEL SYSTEM

ΧΦ65/75/85 series

4

2

6. CLEANING

6.1 CLEANING INJECTOR

The injector must never be cleaned 
with a steel brush or pressure 
cleaning equipment. Never put the 
brush in the injector bores when 
cleaning the exterior of the injector 
nozzle. If this happens, the nozzle 
must be replaced. 
Before cleaning the nozzle, cover the 
injector bores. Only clean the 
injector with a brass hand brush.

Note:
The use of steel brushes can cause deformation 
of the injector bores, with the result that the wrong 
amount of fuel is injected.
This deformation cannot be ascertained by 
measurements or checks.

Note:
The disassembly and assembly of injectors is not 
permitted. Only external cleaning is permitted.

1.

Remove the injector. See "Removal and 
installation".

2.

Clean the injector hole in the cylinder head. 
The metal surface of the hole must not be 
damaged.

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M2 00 040

CE ENGINE FUEL SYSTEM

6-2

©

 200416

Cleaning

2

ΧΦ65/75/85 series

4

3.

Wipe the exterior of the injector with a clean, 
lint-free cloth. In the case of heavy soiling the 
injector may be cleaned carefully with a 
brass hand brush (not the apertures in the 
injector nozzle!).

4.

Fit the injector. See "Removal and 
installation".

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