DAF CF65, CF75, CF85 Series . Manual — part 963

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Inspection and adjustment

STEERING BOX

ΧΦ65/75/85 series

7

3

3.3 INSPECTION, SECTOR SHAFT SEALING RING LEAKS

1.

A plastic plug is fitted into the steering box

side cover.

2.

If there is an oil leak at this plug, the sector

shaft oil seal is leaking into the side cover.

3.

If the oil seal is leaking, the sector shaft oil

seal in the side cover must be replaced.

It is not permitted:

- to fit the plastic plug into the side

cover using a sealing compound

or glue;

- to apply an additional layer of

paint over the factory-applied

layer;

- to seal the plug hole using means

other than the plug itself.

If leak-off oil from the sector shaft oil

seal cannot escape through the plug

hole, there is a risk that the steering

box may fail.

4.

Check the sector shaft oil seal on the pitman

arm side.

5.

In the event of leakage, replace the sector

shaft oil seal on the pitman arm side.

S7 00 595

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STEERING BOX

3-10

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Inspection and adjustment

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ΧΦ65/75/85 series

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3.4 INSPECTION, INTERNAL STEERING BOX RESISTANCE

1.

Place a receptacle under the steering box.

Clean the pipe connections and remove the

steering oil pipes from the steering box.

Collect the oil flowing out and plug the pipe

openings.

2.

Turn the steering wheel from one end stop to

the other until the oil stops coming out of the

steering box. The pipe connections at the

steering box should not be plugged.

3.

Remove the steering rod from the pitman

arm.

4.

Remove the steering column shaft from the

steering box input shaft.

5.

Place a resistance torque tester on the

steering box input shaft and measure the

resistance torque to a maximum of 1.5 turns

at both sides of the central position.

Note:

When a steering rod has been removed, the

input shaft must not be rotated more than

1.5 turns (counting from the central position)

because otherwise the setting of the wheel

deflection limiting valves will be changed.

6.

Compare the reading with the maximum

value allowed. See 'Technical data'.

7.

If the reading deviates, the pressure point

setting must be checked.

Note:

The internal resistance outside the pressure

point cannot be adjusted.

8.

Fit the pipes to the steering box.

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Inspection and adjustment

STEERING BOX

ΧΦ65/75/85 series

7

3

9.

Fit the steering shaft to the steering box input

shaft. The groove (A) in the coupling must be

aligned with the mark (B) on the input shaft of

the steering box.

Check that the steering shaft is

correctly fitted to the input shaft, so

that the bolt can be fitted in the

recess (C).

10. Fit the new, original bolt and nut in the

universal joint.

Tighten the bolt to the specified torque, see

'Technical data'.

11. Install the steering rod.

12. Fill and bleed the steering gear.

13. If the steering box input shaft may possibly

have been rotated more than 1.5 turns (as

seen from the central position) with the

steering rod removed, the final limiting

pressures should be checked.

14. Make a test drive. During the test drive,

check the proper functioning of the steering

gear. After the test drive, the system should

be checked for leaks.

K1 01 353

A

C

B

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STEERING BOX

3-12

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Inspection and adjustment

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ΧΦ65/75/85 series

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3.5 INSPECTION, PITMAN ARM PART NUMBER

The part number of the pitman arm is stamped

next to the eye for the steering rod attachment.

See the arrow in the illustration.

S7 00 447