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DAF CF65, CF75, CF85 Series . Manual - part 868

200423

1-13

Brake system and components

TECHNICAL DATA

ΧΦ65/75/85 series

09N044 leading rear axle (used on FTP
vehicle)

Disc brakes, SB7000 and SN7000 series

Brake drum
General
A brake drum may be used until the inside
diameter has reached the maximum permissible
value, as specified in the table below.

As soon as this diameter is exceeded, the brake
drum must be replaced.

09N044 leading rear axle (used on FTP
vehicle)

The ovality (deformation) of the brake drum is
checked with the drum in position on the hub,
or on a brake dynamometer.

Brake drums with cracks exceeding a width of
0.7 mm or a length of 50 mm may not be reused.

Minimum lining thickness

5 mm

TYPE

NOTES

DAF 1200

Fitted to all vehicles

Brake diameter

Standard brake-drum

diameter in mm

Maximum in mm

Maximum

reconditioning

dimension in mm

Ovality
314 +

0,127

317,3

316,3

13"

330,2 +

0,127

333,2

332,3

393,7

+ 0,127

396,7

395,7

16"

406,6

+ 0,250

409,6

408,6

420

+ 0,250

425

423

310 mm

310

+ 0,210

313

312

325 mm

325

+ 0,230

328

327

360 mm

360

+ 0,230

363

362

375 mm

375

+ 0,230

378

377

420 mm

420

+ 0,250

425

423

Brake diameter

Standard brake-drum

diameter in mm

Maximum in mm

Maximum

reconditioning

dimension in mm

300 mm

300

298 - 299 mm

TECHNICAL DATA

1-14

200423

Brake system and components

ΧΦ65/75/85 series

Automatic slack adjuster for drum brakes

Brake pad

replacing:
all brake pads at the same time for each axle,
and with the specified lining only.

Brake caliper

Automatic slack adjuster travel (Haldex)

35 - 40 mm

Reverse torque value of adjusting bolt

> 18 Nm

Axial play on the brake camshaft

0.5 - 1.0 mm

R600489

maximum brake pad
thickness (C)

30 mm

0 minimum lining thickness (E)

2 mm

minimum brake pad thickness (F),
with 9 mm rear plate thickness (D)

11 mm

Brake pad/brake disc play

0.6 - 1.0 mm

R600708

R600712

Y - X

Brake caliper play in axial direction (direction A)

0.6 - 1.0 mm

Brake caliper play on the guide sleeves ("Y" - "X")

Maximum 2.0 mm

200423

1-15

Brake system and components

TECHNICAL DATA

ΧΦ65/75/85 series

Brake disc

Note:
If it is established during brake pad replacement
that the brake thickness is less than or equal to
39 mm, the brake disc must also be replaced.

R600489

maximum brake disc
thickness (A) 0

45 mm

minimum brake disc thickness (B)
(rejection dimension, disc needs
to be replaced) 37

minimum thickness, turning
dimension

40 mm

max. 0,75 x a

max. 1,5 mm

R600471

The following signs of wear are permissible:
A1

crazy cracking.

cracks running to the centre up to 1.5 mm
wide and deep, max. 0.75 x friction surface
width (a).

C1 unevenness in the disc surface up to

1.5 mm.

Not permissible:
D1 through-going cracks.

TECHNICAL DATA

1-16

200423

Brake system and components

ΧΦ65/75/85 series

1.2 TIGHTENING TORQUES

Note:
The tightening torques stated in this section are
different from the standard tightening torques
stated in the overview of the standard tightening
torques.

The other threaded connections not specified
must therefore be tightened to the torque stated
in the overview of standard tightening torques.

When attachment bolts and nuts are replaced,
it is important that - unless stated otherwise -
these bolts and nuts are of exactly the same
length and property class as those removed.

SAFETY VALVE

BRAKE CALLIPER - BRAKE CARRIER

(1) Always use new bolts, provided with locking compound.

New bolts are supplied with locking compound already
applied.

(2) In the case of versions with Knorr disc brakes,

the attachment of the brake caliper against the stub axle
changed starting from production week 2002-25.
Five bolts are now used instead of six bolts. There is still
a hole for the 6

bolt (5) on the brake carrier, but there is

no hole on the stub axle.

BRAKE DISC

Attachment

72 Nm

Sliding sleeve Allen screws (SB7000)

285 Nm

(1)

Sliding sleeve Allen screws (SN7000)

180 Nm + 90



(1)