DAF CF65, CF75, CF85 Series . Manual — part 422

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2

7.

Check the fuel supply pipe for damage and
signs of leakage.
Leakage in the fuel supply pipe can be
recognised by erosion tracks (lines) on the
nose of the supply pipe. If necessary or if in
doubt, replace the fuel supply pipe.

8.

Check that the injector fuel connection is not
leaking.
Leakage in the injector fuel connection can
be recognised by erosion tracks (lines) in the
socket of the fuel connection . If necessary or
if in doubt, replace the injector.

Note:
If fuel has been found in the lubricating oil,
extra attention must be paid to the O-rings of
the injectors, as these have most probably
been damaged by increased pressure in the
return circuit as a result of an internal leak.

Note:
The following guidelines must be adhered to:
-

If the injector is defective, both the injector
and the fuel supply pipe must be replaced.

-

If the fuel supply pipe is defective and in
addition the sealing surface with the injector
is damaged, both the injector and the fuel
supply pipe must be replaced.

-

If the fuel supply pipe is defective and the
sealing surface with the injector is not
damaged, the fuel supply pipe must be
replaced but the injector can be reused.

9.

Fit the injector and fuel supply pipe. See
"Removal and installation".

10. Again inspect for internal fuel leaks to check

that there is no leakage.

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4.5 CHECKING THE FUEL PREFILTER/WATER SEPARATOR

If a fuel prefilter/water separator is fitted, there
are two versions.

Note:
The "Fleetguard" version cannot be visually
inspected for water.

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"Racor" version
1.

Check the reservoir (5) for water.

2.

If necessary, drain the water off through the
drain plug (8) using the fuel lift pump (1) and
collect the water and fuel in a container.

1

2

3

4

5

7

6

8

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