DAF LF45, LF55 Series. Manual — part 323

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200416

5-27

Removal and installation

CE ENGINE FUEL SYSTEM

ΛΦ45/55 series

4

5

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

5-28

©

200416

Removal and installation

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ΛΦ45/55 series

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200416

6-1

Cleaning

CE ENGINE FUEL SYSTEM

ΛΦ45/55 series

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5

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.

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".

}

M2 00 040

i 400413

CE ENGINE FUEL SYSTEM

6-2

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200416

Cleaning

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ΛΦ45/55 series

4