DAF LF45, LF55 Series. Manual — part 500

7

LF45/55 series

Contents

STEERING BOX

1

CONTENTS

Page

Date

1. SAFETY INSTRUCTIONS

1-1

200322

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2. GENERAL

2-1

200322

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2.1

Overview drawing of steering box

2-1

200322

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2.2

Overview drawing of wheel-deflection limiting valves

2-2

200322

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2.3

Operation of the steering box

2-3

200322

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3. INSPECTION AND ADJUSTMENT

3-1

200322

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3.1

Inspection and adjustment, wheel-deflection limiting valves

3-1

200322

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3.2

Inspecting the pressure point

3-6

200322

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3.3

Inspection and adjustment, input shaft end play

3-8

200322

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4. REMOVAL AND INSTALLATION

4-1

200322

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4.1

Removal and installation of steering box assembly

4-1

200322

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4.2

Removal and installation of steering bracket

4-5

200322

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4.3

Removal and installation of pitman arm

4-7

200322

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4.4

Removal and installation of pressure-limiting valve

4-11

200322

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4.5

Removal and installation of piston

4-12

200322

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7

STEERING BOX

Contents

LF45/55 series

2

3

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7

LF45/55 series

Safety instructions

STEERING BOX

1-1

1. SAFETY INSTRUCTIONS

If the vehicle is fitted with an airbag,
observe the warnings and safety
instructions applicable to working
on an airbag system.

Be careful when tilting the cab or
when working under a tilted cab if
the steering bracket has to be
inspected or replaced because of a
collision.
Vital parts of the cab suspension
may have been damaged during the
collision.
Take the necessary precautions.

If the vehicle has been involved in a collision, in
which the steering box or other steering gear
components (may) have been damaged, the
steering box must always be sent to DAF for
inspection or be replaced. This requirement still
applies even if no external damage is visible.
The steering box may have sustained internal
damage in the collision, causing it to be
unreliable.

If the pitman arm has been subjected to
extremely high loads (in an accident), it should
be magnaflux tested, even if no faults are
apparent to the naked eye.
If such a test is not possible, the pitman arm
should always be replaced.

The pitman arm should only be removed using
the specified special tool.
If the specified tools are not available, the
pitman arm should under no circumstances be
removed by dislodging it using a hammer or by
heating.
This would result in the pitman arm becoming
extremely unreliable and would also
permanently damage the sector shaft.

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7

STEERING BOX

Safety instructions

LF45/55 series

1-2

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