DAF LF45, LF55 Series. Manual - part 463

©

 200436

3-3

Removal and installation

BRAKE SYSTEM AND COMPONENTS

ΛΦ45/55 series

6

4

3.3 REMOVAL AND INSTALLATION, BRAKE CYLINDER

Removing the brake cylinder
1.

Remove the compressed air connection to 

the brake cylinder.

2.

Remove the attachment nuts from the brake 

cylinder.

3.

Remove the brake cylinder.

Installing the brake cylinder
1.

Fit the brake cylinder onto the support and 

tighten the attachment nuts to the specified 

torque. See "Technical data".

2.

Connect the air pipe.

BRAKE SYSTEM AND COMPONENTS

3-4

©

 200436

Removal and installation

4

ΛΦ45/55 series

6

3.4 REMOVAL AND INSTALLATION, SPRING BRAKE CYLINDER

Removing the spring brake cylinder
1.

Place chocks in front of and behind wheels.

2.

Put the parking brake valve in the "Driving" 

position (provide sufficient system pressure: 

> 7 bar). Unscrew the spring brake cylinder 

in the release bolt with a 24-mm spanner as 

far as possible (anti-clockwise).

3.

Place the parking brake valve in the 

"Parking" position and disconnect the two air 

pipes from the spring brake cylinder.

4.

Remove the attachment nuts and spring 

washers and remove the spring brake 

cylinder from the support.

Installing the spring brake cylinder
1.

Fit the spring brake cylinder onto the support 

and tighten the attachment nuts to the 

specified torque. See "Technical data".

2.

Connect the air pipes.

3.

Put the parking brake valve in the "Driving" 

position (provide sufficient system pressure: 

> 7 bar). Turn the release bolt all the way in 

and tighten it to the specified torque. See 

"Technical data".

4.

Check the connections for leakage.

©

 200436

3-5

Removal and installation

BRAKE SYSTEM AND COMPONENTS

ΛΦ45/55 series

6

4

3.5 REMOVAL AND INSTALLATION, COMPRESSOR CYLINDER HEAD GASKET

Always replace the gaskets when 

carrying out repairs. 

Removing the cylinder head gasket
1.

Drain some of the coolant.

2.

Remove the suction line.

3.

Remove the delivery line.

4.

Remove the coolant connections.

5.

Remove the cylinder head bolts.

6.

Remove the cylinder head assembly.

Installing the cylinder head gasket
1.

Thoroughly clean all parts.

2.

Check that there are no remnants on the 

piston in the compressor.

3.

Install the head gasket.

4.

Fit the cylinder head including the inlet plate.

5.

Insert the cylinder head bolts.

6.

Install the suction line.

7.

Install the delivery line.

8.

Connect the coolant connections.

9.

Fill the cooling system.

10. Check the operation of the compressor. See 

"Inspection and adjustment".

}

BRAKE SYSTEM AND COMPONENTS

3-6

©

 200436

Removal and installation

4

ΛΦ45/55 series

6

3.6 REMOVAL AND INSTALLATION, AIR DRYER FILTER ELEMENT

Note:

To be certain that the air dryer is functioning 

properly, the air reservoirs should regularly be 

checked for condensation.

If repeatedly more than the normal amount of 

water is drained off, the filter element will have to 

be replaced.

Under normal circumstances the element must 

be replaced at least once per year.