DAF CF65, CF75, CF85 Series . Manual — part 924

©

200423

3-45

Removal and installation

BRAKE SYSTEM AND COMPONENTS

ΧΦ65/75/85 series

6

5

3.24 REMOVING AND INSTALLING BELLOWS WITH

KNORR SN7000 BRAKE CALLIPER THRUST PIECE

Removing bellows with SN7000 brake calliper
thrust piece
1.

Using the hexagonal adjusting bolt, unscrew
the thrust pieces as far as is necessary to
gain access to the bellows.

Note:
Unscrew the thrust pieces a maximum of
30 mm. Do not screw them completely out of
the brake calliper, as the brake calliper
assembly would then have to be replaced.

Note:
Never turn the hexagonal adjusting bolt
without using an adapter. The adapter
is a torque safety and will break off when the
torque is too high. Without the use of an
adapter the mechanics in the brake calliper
may become damaged when the torque
is too high, so that replacement of the brake
calliper may be necessary.

2.

Using a screwdriver (1), ease the bellows
behind the thrust piece (2) out of the brake
calliper.

30 mm

2

2

1

2

R600713

BRAKE SYSTEM AND COMPONENTS

3-46

©

200423

Removal and installation

5

ΧΦ65/75/85 series

6

Note:
Do not insert the screwdriver (3) too deeply
into the brake calliper. This could damage
the seat (6) of the inner seal (5) of the thrust
pieces. These cannot be replaced and the
brake calliper would then have to be
replaced.

3.

Press the thrust pieces (2) off the adjusters
with the disassembly fork (3), special tool set
(DAF no. 1329495).

4.

Remove the bearing bushes (4) from the
thrust pieces.

Note:
If the bellows of the thrust piece is replaced,
the inner seal must also always be replaced.

5.

Place a brake pad in the brake calliper
on the outside so that the adjusters cannot
be screwed out of the brake calliper at the
next check. Place a 70-mm-thick spacer
(self-made) if the brake calliper has been
removed from the axle.

6.

Screw the adjuster about 30 mm out of the
brake calliper and check the thread of the
adjuster for dirt, corrosion and damage.

7.

Screw the adjuster all the way back into the
brake calliper.

8.

Using a screwdriver, ease the inner seal out
of the brake calliper.

Fitting bellows with SN7000 brake calliper
thrust piece
1.

Clean the adjuster.

R600714

2

3

3

5

6

4

©

200423

3-47

Removal and installation

BRAKE SYSTEM AND COMPONENTS

ΧΦ65/75/85 series

6

5

2.

Fit the new inner seal (1) on the adjuster.

3.

Assemble the press from (3) the special tool
set (DAF no. 1329495), by means of T3 and
T9. If the brake calliper has been removed,
T4 must be screwed in between.

4.

Using the assembled press (3), push the
inner seal (1) onto the adjuster (2).

5.

Check that the inner seal is seated correctly
by rotating the adjuster 4 or 5 turns out of the
brake calliper using the hexagonal adjusting
bolt. The inner seal must not turn with it.

6.

Grease the screw thread of the adjusters.
See "Technical data".

7.

Screw the adjusters back into the brake
calliper.

R600715

3

3

2

1

T9

R600788

T4

T3

T9

T3

BRAKE SYSTEM AND COMPONENTS

3-48

©

200423

Removal and installation

5

ΧΦ65/75/85 series

6

8.

Fit new bearing bushes (4) on the adjusters.

9.

Fit the thrust pieces and bellows (5) on the
adjusters.

10. Assemble the press (6) from the special

tool set (DAF no. 1329495), by means of T1,
T2 and T3. If the brake calliper has been
removed, T4 (8) must be screwed in
between.

R600716

6

5

4

6

R600718

8