DAF CF65, CF75, CF85 Series . Manual — part 1034

©

200424

2-1

Inspection and adjustment

SINGLE REAR AXLE 1354

ΧΦ65/75/85 series

8

5

2. INSPECTION AND ADJUSTMENT

2.1 INSPECTION AND ADJUSTMENT, WHEEL BEARING PLAY

1.

Remove the wheel hub. See "Removal and

installation".

2.

Remove the hub seal. See "Removal and

installation".

3.

Fit the wheel hub without the hub seal.See

"Removal and installation".

4.

Turn a rope several times around the hub

and attach it to a wheel stud.

Pull the rope using a tensioner gauge and

read off the force required to turn the hub at

a constant speed.

Compare the pressure reading with the

technical data. See "Technical data".

5.

The pre-load of the wheel bearings can be

changed by removing or fitting spacers

between the spacer sleeve and the inner

wheel bearing. See "Removal and

installation".

A800039

SINGLE REAR AXLE 1354

2-2

©

200424

Inspection and adjustment

5

ΧΦ65/75/85 series

8

2.2 CHECKING THE HUB OIL LEVELS

To prevent skin injury, avoid

unnecessary contact with the

drained oil.

1.

Position the vehicle on a level surface.

2.

Position the wheels so that the arrow on the

hub is pointing upwards.

3.

Remove the level check plug (A). The oil

level should have reached the opening.

4.

Fit the drain plug (B) using the special Torx

wrench (DAF no. 1329493) and tighten to

the specified torque; see "Technical data".

2.3 CHECKING THE DIFFERENTIAL OIL LEVEL

To prevent skin injury, avoid

unnecessary contact with the

drained oil.

1.

Position the vehicle on a level surface.

2.

Lower the trailing axle, if present, on a leaf-

sprung version.

3.

Remove the level check/filler plug (A).

The oil level should have reached the level

check/filler opening.

4.

Fit the drain plug (B) using the special Torx

wrench (DAF no. 1329493) and tighten to

the specified torque; see "Technical data".

}

A

A8 00 365

}

B

A

M8048

©

200424

2-3

Inspection and adjustment

SINGLE REAR AXLE 1354

ΧΦ65/75/85 series

8

5

2.4 CHECKING THE OPERATION OF THE DIFFERENTIAL LOCK

1.

Jack up the rear axle and support the axle on

stands.

2.

Bring the air system to operating pressure.

3.

Engage the differential lock. The warning

lamp should now come on.

4.

Check that there is a "rigid" connection

between the driven wheels.

5.

Disengage the differential lock. The warning

lamp should not light up and the "rigid"

connection between the driven wheels

should be broken.

2.5 CHECKING THE HUB AND WHEEL BEARINGS

1.

Inspect the bearings for damage at the

following points:

-

the roller bearing race,

-

the bearing cage,

-

the raceways of the inner and outer

race.

If damage is found, the entire bearing (inner

race/bearing cage and outer race) should be

replaced.

2.

If the outer race of the bearing is loose in the

hub or has turned in the hub, the hub should

be replaced.

3.

Check the axle journal screw thread, the

bearing surfaces of the inner bearing races

and the running surface of the seal for

damage.

4.

Check the wheel speed sensor ring for

damage. Replace the ring at even the

slightest trace of damage.

SINGLE REAR AXLE 1354

2-4

©

200424

Inspection and adjustment

5

ΧΦ65/75/85 series

8

2.6 CHECKING THE WHEEL SPEED SENSOR RING

1.

Remove the wheel hub. See "Removal and

installation".

2.

Check the sensor ring (1) for deposits.

Special attention should be paid to deposits

between the teeth of the sensor ring.

Clean the sensor ring if necessary.

3.

Check the sensor ring (1) for damage. Even

the slightest damage can cause a failure. If

necessary replace the sensor ring.

4.

If possible, the sensor ring (1) should be

checked for the maximum admissible axial

end play. See "Technical data".

5.

Check the sensor (2) for freedom of

movement.

If necessary, clean the sensor and apply new

grease.

2

1

A8 00 347