DAF CF65, CF75, CF85 Series . Manual — part 928

©

200423

3-61

Removal and installation

BRAKE SYSTEM AND COMPONENTS

ΧΦ65/75/85 series

6

5

3.

Assemble a press from the special tool set
(DAF no. 1329495). To do this, use T7, T10,
T8 and a washer.

4.

Place a new bellows (3) in the sleeve (5)
of the assembled press.

5.

Place the press and bellows in the bore
of the brake calliper. Hand-tighten the
press (6).

6.

Tighten the press (6) to the specified torque.
See "Technical data". Remove the press.

1

T8

T10

T7

R600761

5

3

4

5

3

6

R600724

BRAKE SYSTEM AND COMPONENTS

3-62

©

200423

Removal and installation

5

ΧΦ65/75/85 series

6

7.

Check the bellows fastening by pulling it
outwards by hand. Damage is not permitted.

8.

Apply lubricating grease to the bronze
bearing bush and guide bush. See
"Technical data".

9.

Install the guide bush (2).

10. Install the washer (1).

11. Check that the guide bush moves freely in

the brake calliper.

12. Fit the brake calliper.

R600725

2

3

1

R600723

©

200423

4-1

Disassembly and assembly

BRAKE SYSTEM AND COMPONENTS

ΧΦ65/75/85 series

6

5

4. DISASSEMBLY AND ASSEMBLY

4.1 DISASSEMBLY AND ASSEMBLY, BRAKE CHAMBER

Removal, diaphragm
1.

Turn the brakes back until the spring in the
brake chamber is under tension.

2.

Mark the position of the brake chamber
halves in relation to one another.

3.

Remove the clamping strap from the brake
chamber.

4.

Remove the rear half of the brake chamber
and the diaphragm.

Installation, diaphragm
1.

Fit the new diaphragm and brake chamber
half. (Pay attention to the markings or the
small drainage hole.)

2.

Fit the clamping strap.

3.

Adjust the brakes. See "Inspection and
adjustment".

4.

Check the complete brake chamber for air
leaks.

Disassembling the brake chamber
1.

Remove the yoke and the lock nut from the
push rod.

2.

Slide a sealing ring and a piece of pipe over
the push rod.

3.

Screw the lock nut onto the push rod until the
spring in the brake chamber is slightly
tensed.

4.

Mark the position of the brake chamber
halves in relation to one another.

5.

Loosen the clamping strap and remove the
brake chamber half, the push rod and the
diaphragm.

Assembly, brake chamber
1.

Thoroughly clean all parts.

2.

Check all parts for damage and replace them
if necessary.

3.

Replace the diaphragm in any case. Fit in the
reverse order to removal.

BRAKE SYSTEM AND COMPONENTS

4-2

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200423

Disassembly and assembly

5

ΧΦ65/75/85 series

6

4.2 DISASSEMBLY AND ASSEMBLY, WABCO SPRING BRAKE CYLINDER

Disassembling the brake chamber
1.

Clean the spring brake cylinder.

2.

Remove the flexible bleed pipe with the
internal sinter filter.

3.

Place a wrench on the yoke rod at the
assembly surface of the brake chamber.

4.

Apply pressure to connection point (12)
(min. 6.0 bar).

5.

Remove the clamping strap.

6.

Remove the front cover from the brake
chamber.

7.

Remove the diaphragm.

8.

Remove the front cover from the yoke.

R600197

R600194