DAF LF45, LF55 Series. Manual - part 268

©

 200508

3-3

Description of components

CLUTCH

ΛΦ45/55 series

3

9

3.2 WEAR INDICATOR

An indicator (1) is mounted on the push rod of the 

clutch servo. The end of the indicator can be seen 

in the groove of the indicator cover (2).

As the clutch plate wears, the indicator (1) will 

move towards the end mark (3). When the 

indicator (1) reaches the end mark (3), it may be 

assumed that the clutch plate is due to be 

replaced.

Automatically adjusting clutch release 
assembly

Check that the wear indicator (2) on the clutch 

servo is directly opposite the mark (1) on the 

cover.

If the wear indicator is no longer level with the 

mark on the clutch servo, replace the clutch plate.

V3 00 381

1

2

3

V3 00 375

1

2

CLUTCH

3-4

©

 200508

Description of components

9

ΛΦ45/55 series

3

3.3 THRUST BEARING

The thrust bearing is of the pressed type and is 

maintenance-free.

When mounting the thrust bearing, do not use 

any grease. The gearbox front cover must be 

thoroughly cleaned before the thrust bearing is 

mounted.

The grease will attack the plastic coating and 

shorten the service life of the thrust bearing.

LF 45 thrust bearing with ZF S5-42 gearbox

Thrust bearing, other LF versions

;;

;;

;;

;

;

;;

;;

;;;;

;;;;

V3 00 387

;;

;;

;;

;;

;

;

;;

;;

V3 00 388

©

 200508

4-1

Inspection and adjustment

CLUTCH

ΛΦ45/55 series

3

9

4. INSPECTION AND ADJUSTMENT

4.1 INSPECTING CLUTCH SERVO

Hydraulic fluid is toxic and can 

therefore have a damaging effect on 

your health. Any direct or indirect 

physical contact should therefore be 

avoided. As hydraulic fluid is also 

corrosive it may damage the 

paintwork of the vehicle. Any 

contact between hydraulic fluid and 

paintwork should therefore be 

avoided.

Always use new and clean hydraulic 

fluid which has been kept in a sealed 

container that meets the 

specifications. Hydraulic fluid which 

has absorbed water (from the 

ambient air) may have an adverse 

effect on the operation of the clutch 

system. Avoid any contact with 

mineral oil. Even one drop of mineral 

oil in the system will damage the 

seals.

}

}

CLUTCH

4-2

©

 200508

Inspection and adjustment

9

ΛΦ45/55 series

3

1.

Pressurise the air system.

2.

Check for any air leakage via the clutch 

servo bleed vent.

3.

Depress the clutch pedal and check whether 

there is any leakage via the clutch servo 

bleed vent.

3

2

7

1

10

8

9

 A-A

4

5

6

A

V300352-2

A