DAF 95XF. Manual - part 422

4

XE ENGINE FUEL SYSTEM

Disassembly and assembly

95

XF series

5-2

Assembling the injector
1.

Immerse the injector needle and the injector
body in clean diesel fuel.
Insert the injector needle in the injector
housing (nozzle).
With the injector body held vertically, if the
injector needle is lifted approx. 10 mm, it
should slide downwards under its own
weight.

2.

Blow-clean all parts, and immerse them in
clean diesel fuel.

3.

Note:
Ensure that there is no more diesel fuel on
the screw thread, as it will cause the quality
of the thread to deteriorate.

Install the injector and tighten the union
nut (2) to the specified tightening torque,
see chapter “Technical data”.

4.

Check the opening pressure of the injector,
see chapter “Inspection and adjustment”.

M200210

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95

XF series

Cleaning

XE ENGINE FUEL SYSTEM

6-1

6.  CLEANING

6.1

CLEANING INJECTOR

The injector must never be cleaned
with a copper or steel wire brush.
When cleaning the exterior of the
injector nozzle, do not brush over
the nozzle holes. If this is done
nevertheless, the nozzle will have to
be replaced.

The use of steel or copper wire brushes could
lead to deformation of the nozzle holes as a
result of which too little fuel would be injected.
Such deformation cannot be detected by
carrying out the normal injector test.

Cover the nozzle holes before
cleaning the nozzle. Only clean the
nozzle with the brass hand brush
supplied with the injector cleaning
set (DAF no. 1329371).

1.

Determine the diameter of the injector
nozzles to be cleaned, see main group
“Technical data”.

Note:
The diameter of the injector nozzles can be
established using the nozzle number on the
nozzle.

2.

Disassemble the injector, see chapter
“Disassembly and assembly”.

3.

Clean the injector nozzles using an injector
cleaning set (DAF no. 1329371).

Note:
The diameter of the needle must be approx.
0.02 mm less than the diameter of the
nozzle.

4.

Assemble the injector, see chapter
“Disassembly and assembly”.

M2 00 040

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XE ENGINE FUEL SYSTEM

Cleaning

95

XF series

6-2

6.2

CLEANING INJECTOR SLEEVE

1.

Remove the injector, see chapter “Removal
and installation”.

2.

Use the special tool (DAF no. 1240074) to
remove any residual copper shim.

3.

Use the special tool (DAF no. 1240074) to
clean the injector sleeve.

4.

Clean the injector sleeve with compressed
air.

5.

Fit the injector, see chapter “Removal and
installation”.

I400001

6.3

CLEANING FUEL COARSE FILTER

1.

Remove the fuel coarse filter, see “Removal
and installation”.

2.

Flush the coarse filter using clean diesel
fuel.

3.

Blow-clean the coarse filter, using
compressed air; maximum pressure:
approx. 1 bar.

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95

XF series

Contents

XE ENGINE INLET/EXHAUST SYSTEM

1

CONTENTS

Page

Date

1.

SAFETY INSTRUCTIONS

1-1

0008

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2.

GENERAL

2-1

0008

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2.1

Location of components

2-1

0008

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2.2

Description of turbocharger system with wastegate

2-3

0008

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3.

INSPECTION AND ADJUSTMENT

3-1

0008

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3.1

Checking and adjusting the wastegate turbocharger

3-1

0008

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3.2

Inspection of exhaust back pressure

3-2

0008

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3.3

Inspection and pressure-testing of air inlet system

3-3

0008

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3.4

Inspection of inlet underpressure

3-4

0008

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3.5

Inspection of boost pressure

3-4

0008

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4.

REMOVAL AND INSTALLATION

4-1

0008

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4.1

Removal and installation of turbocharger

4-1

0008

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4.2

Removal and installation of intercooler

4-3

0008

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4.3

Removal and installation of air cleaner element

4-6

0008

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5.

CLEANING

5-1

0008

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5.1

Cleaning the radiator and intercooler

5-1

0008

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5.2

Cleaning the air cleaner element

5-3

0008

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