DAF CF65, CF75, CF85 Series . Manual - part 1159

©

 200423

3-19

Inspection and adjustment

EXPLANATORY NOTES ON THE MAINTENANCE ACTIVITIES

ΧΦ75 series

5

3.24 CHECKING THE BRAKE CYLINDER FASTENING

1.

Check that the brake cylinders do not move 

during operation of the service brake.

3.25 INSPECTION, BRAKE LINING THICKNESS

1.

Pressurise the air brake system (pressure 

regulator should cut out) and make sure that 

the vehicle's parking brake is not activated.

2.

Check the brake lining thickness through the 

openings in the dust cover.

3.

Replace the brake lining if it is worn down to 

the wear indicator mark on the lining.

Note:

If in doubt about the amount of brake lining 

wear, release the brakes and remove the 

dust cover.

M6012

M6002

EXPLANATORY NOTES ON THE MAINTENANCE ACTIVITIES

3-20

©

 200423

Inspection and adjustment

5

ΧΦ75 series

3.26 CHECKING THE BRAKE SHOE THICKNESS AND BRAKE DISC

Version: Knorr SB 7000
1.

Check whether guide bush (4) protrudes 

from guide sleeve (6) (C).

If the guide bush (4) is level with the guide 

sleeve (6) (see detail A) the brake shoe and 

brake disc thicknesses should be checked.

C

1

4

6

R600481

A

©

 200423

3-21

Inspection and adjustment

EXPLANATORY NOTES ON THE MAINTENANCE ACTIVITIES

ΧΦ75 series

5

Version: Knorr SN 7000
1.

Check the transition between the ribbed part 

of the rubber cover and the smooth part (A). 

If the smooth part is rolled inwards, the brake 

shoe and brake disc thicknesses must be 

checked.

Drive and chassis

A

A

A

R600730

EXPLANATORY NOTES ON THE MAINTENANCE ACTIVITIES

3-22

©

 200423

Inspection and adjustment

5

ΧΦ75 series

3.27 CHECKING AND ADJUSTING LOAD-SENSING AIR-SUSPENSION CONTROL 

VALVE

Explanatory notes on instruction plate
This plate is mounted on the rear door pillar on 

the left-hand side of the vehicle. The information 

on the instruction plate relates to the axle loads, 

the delivery pressures and bellows pressures, 

following the sequence of the axles beneath the 

vehicle. 

Therefore, "1" refers to the (first) front axle, "2" to 

the next following axle, etc.

If the vehicle is fitted with a relay valve in the front 

axle brake circuit, the box beneath the valve 

illustration will be blank. Throughout the column, 

a value of 8.1 bar has been filled in for "delivery 

pressure p2" under axle "1".

If the vehicle is equipped with a control valve 

instead of the relay valve mentioned, the box will 

contain a pressure ratio, e.g."i = 1 : 1.5". The 

"delivery pressure p2" of axle "1" then indicates 

variable readings.

These values can be used to check the brake 

pressure values of the front axle and to carry out 

the inspection/adjustment below at the same 

time. To do this, connect a pressure gauge to the 

test connection of one of the front axle brake 

cylinders.

AUTOM. LASTAFHANKELIJKE REMKRACHTREGELING
AUTOM. LOAD SENSING DEVICE
AUTOM. LASTABHAENGIGE BREMSKRAFT REGELEINR.
DISPOSITIF DE CORRECTION AUTOM. DE FREINAGE
REGOLATORE AUTOM. DELLA FORZA FRENANTE
REGULADOR AUTOM. DEL ESFUERZO DE FRENANDA

TYPE   -  TIPO   :   FA

1425289

2

1.8

2.5

4.0

5.0

6.0

10.0

11.5

13.0

2

2.0

2.1

2.8

3.5

4.3

7.3

8.3

8.3

3

1

5.7

5.8

6.0

6.3

6.6

7.7

8.1

8.1

12

0.2

0.5

1.3

1.8

2.3

4.2

4.9

5.6

1

ASLAST                          G

AXLE LOAD

ACHSLAST

CHARGE SOUS ESSIEU

CARICO ASSE

CARGA EJE

    

x10

4

 N

UITGESTUURDE DRUK   p2

DELIVER

Y PRESSURE

AUSGESTEUER

TER DRUCK

PRESSION DELIVREE

PRESSIONE USCIT

A

PRESION DE SALIDA

                 bar

BALG DRUK                     p43

PRESSURE BELLOWS

BALG DRUCK

PRESSION COUSSIN

PRESS. CUSCINI ARIA

PRESION FUELLES

                  bar

±0.4

±0.2

W475 721 003 0

1  =  1  :  1.5

MEEREGEL

VENTIEL

EMPTY

-LOAD V

A

LV

E

LAST

-LEER VENTIEL 

V

A

LVE CHARGE-VIDE

V

A

LVOLA VUOTO-CARICO

V

A

LVULA V

ACIO-CARGA

p1 = > 8.5 bar

p4 = 8.0 bar

p1

p2

p4

p43

R600472