DAF LF45, LF55 Series. Manual - part 281

©

 200416

4-1

BE Engine inlet/exhaust system

TECHNICAL DATA

ΛΦ45/55 series

4

0

4. BE ENGINE INLET/EXHAUST SYSTEM

4.1 GENERAL

Turbocharger

Rejection standards for cracking

1.

Cracks in the connector flange must not 

reach as far as the attachment holes.

2.

Cracks in the connector flange must not 

reach from the channels as far as the 

exterior.

3.

Cracks in the connector flange may not be 

longer than 15 mm.

4.

Cracks in the connector flange must not be 

less than 6 mm apart.

5.

There must be no cracks in the housing.

Exhaust gas back pressure

Inlet underpressure

Glow element

BE 99 C

Holset HX 27 W

BE 110 C

Holset HX 27 W

BE 123 C

Holset HX 27 W

Minimum actuating pressure of wastegate cap-

sule under which the control rod will move

2.0 bar

Axial bearing play of compressor shaft

0.057 - 0.103 mm

Radial bearing play of compressor shaft

0.39 - 0.67 mm

1

2

5

3
4

i400784

At full-load engine speed

100 mbar

Maximum back pressure during engine brake ap-

plication

4.3 bar

At full-load engine speed (clean air filter)

25 mbar

At full-load engine speed (clogged air filter)

62 mbar

Resistance value

180 - 220 m



TECHNICAL DATA

4-2

©

 200416

BE Engine inlet/exhaust system

0

ΛΦ45/55 series

4

4.2 TIGHTENING TORQUES

The tightening torques specified in this section 

are different from the standard tightening torques 

cited in the overview of the standard tightening 

torques. The other threaded connections not 

specified must therefore be tightened to the 

torque cited 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.

Turbocharger

(1) Fasten with Copaslip

Intake manifold

Air cooler

Attachment nuts, exhaust manifold flange/turbo-

charger

43 Nm

(1)

Oil discharge pipe attachment bolts

23 Nm

Oil supply pipe union

28 Nm

Turbocharger V-clamp

10 Nm

Glow element attachment bolts

14 Nm

Hose clamps

7 Nm

©

 200416

5-1

CE Engine inlet/exhaust system

TECHNICAL DATA

ΛΦ45/55 series

4

0

5. CE ENGINE INLET/EXHAUST SYSTEM

5.1 GENERAL

Turbocharger

Rejection standards for cracking

1.

Cracks in the connector flange must not 

reach as far as the attachment holes.

2.

Cracks in the connector flange must not 

reach from the channels as far as the 

exterior.

3.

Cracks in the connector flange may not be 

longer than 15 mm.

4.

Cracks in the connector flange must not be 

less than 6 mm apart.

5.

There must be no cracks in the housing.

Exhaust gas back pressure

Inlet underpressure

Glow element

CE 136 C

Holset HY 35 W

CE 162 C

Holset HY 35 W

CE 184 C

Holset HX 35 W

Minimum actuating pressure of wastegate cap-

sule under which the control rod will move

2.0 bar

Axial bearing play of compressor shaft

0.038 - 0.093 mm

Radial bearing play of compressor shaft

0.329 - 0.501 mm

1

2

5

3
4

i400784

At full-load engine speed

100 mbar

Maximum back pressure during engine brake ap-

plication

4.3 bar

At full-load engine speed (clean air filter)

25 mbar

At full-load engine speed (clogged air filter)

62 mbar

Resistance value

180 - 220 m



TECHNICAL DATA

5-2

©

 200416

CE Engine inlet/exhaust system

0

ΛΦ45/55 series

4

5.2 TIGHTENING TORQUES

The tightening torques specified in this section 

are different from the standard tightening torques 

cited in the overview of the standard tightening 

torques. The other threaded connections not 

specified must therefore be tightened to the 

torque cited 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.

Turbocharger

(1) Fasten with Copaslip

Glow element

Air cooler

Attachment nuts, exhaust manifold flange/turbo-

charger

43 Nm

(1)

Oil discharge pipe attachment bolts

23 Nm

Oil supply pipe union

28 Nm

Turbocharger V-clamp

10 Nm

Attachment bolts

14 Nm

Hose clamps

7 Nm