DAF CF65, CF75, CF85 Series . Manual — part 919

©

200423

3-25

Removal and installation

BRAKE SYSTEM AND COMPONENTS

ΧΦ65/75/85 series

6

5

3.12 REMOVAL AND INSTALLATION, BRAKE CAMSHAFT

Removal, brake camshaft
1.

Remove the brake shoes.

2.

Remove the automatic slack adjuster.

3.

Disconnect the air pipe to the brake cylinder.

4.

Remove the attachment bolts from the brake
cylinder bracket.

5.

Slide the brake cylinder bracket complete
with the brake cylinder from the brake
camshaft. Support the brake camshaft
during this process.

6.

Remove the brake camshaft from the back
plate.

7.

Check the brake camshaft. The curve
against which the rollers run should not be
worn or damaged.

Installation of the brake camshaft
1.

Before fitting, first clean all parts and
lubricate them with Copaslip.

2.

Check the seals in the bracket. If necessary,
replace.

3.

Insert the brake camshaft with the shim
through the back plate, and slide the brake
cylinder bracket complete with brake cylinder
over the brake camshaft.

4.

Attach the brake cylinder bracket.

5.

Check the radial play. This must be minimal.
If necessary, replace the bearing bushes.

6.

Fit the brake shoes.

7.

Fit the automatic slack adjuster.

R600151

R600152

BRAKE SYSTEM AND COMPONENTS

3-26

©

200423

Removal and installation

5

ΧΦ65/75/85 series

6

3.13 REMOVAL AND INSTALLATION, BRAKE CAMSHAFT BEARING.

Removal, brake camshaft bearing
1.

Remove the brake camshaft.

2.

Remove the oil seals from the brake cylinder
bracket. These must always be replaced.

3.

Use the special tool (DAF no. 0694794)
for removing the brake camshaft. Determine
the correct set of wedges for each bearing
bush, and fit them on the puller.

4.

Move the loose wedge (1) back so that the
halves of the pulling piece (2), which are kept
together by the O-ring, are joined.

5.

Place the puller in the brake cylinder bracket,
so that shoulder (a) is behind the bearing
bush. When working on the front axle,
ensure that the shoulder engages with the
recess between the bearing bush and the
brake cylinder bracket.

R600153

7

A1

7

6

5

8

4

1

2

3 a

1

A2

A1<A2

©

200423

3-27

Removal and installation

BRAKE SYSTEM AND COMPONENTS

ΧΦ65/75/85 series

6

5

6.

Using nut (4), screw the wedges as far as
possible inwards. Tighten the nut finger-tight.

7.

Place the spacer sleeve (5) against the
brake cylinder bracket and screw nut (6) until
the bearing bush is pulled out of the bracket.
Ensure that the contact faces of nut (6),
the spacer sleeve (5) and the threaded
spindle (8) are sufficiently lubricated.

Installation, brake camshaft bearing
1.

Check the brake cylinder bracket for
damage. If necessary, replace.

2.

Check whether the lubricating nipple is open,
so that the bearings can be lubricated with
grease from the automatic lubrication
system.

3.

Fit the bearing bushes using the special tool
(DAF no. 1310421).

4.

Check the brake camshaft for smooth
operation. If necessary, ream the bushes.
Play between spindle and bush 0.1 to 0.2 mm.

R600154

BRAKE SYSTEM AND COMPONENTS

3-28

©

200423

Removal and installation

5

ΧΦ65/75/85 series

6

5.

Fit the oil seals.

Note:
The oil seal on the wheel brake end should
form a seal, whilst the oil seal on the slack
adjuster end should be able to discharge
grease from the bracket.

6.

Fit the brake camshaft.

R600185