DAF LF45, LF55 Series. Manual — part 151

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200505

3-1

BE engine lubrication system

TECHNICAL DATA

ΛΦ45/55 series

2

0

3. BE ENGINE LUBRICATION SYSTEM

3.1 GENERAL

Oil pressure

Oil filter

Oil cooler

Lubricating oil pump

Lubricating oil pressure at engine idling speed

min. 0.69 bar

Lubricating oil pressure at full-load engine speed

min. 2.07 bar

Bypass pressure regulator opening pressure

3.52 bar

Type

disposable filter

Number

1

Location in the oil circuit

full flow

Oil cooler pressure test temperature

approx. 60

C

Oil section test pressure

4.5 - 5.0 bar

Opening pressure of bypass valve at a pressure

difference of

3.45 bar

M201077

Maximum clearance,

inner rotor - outer

rotor

0.178 mm

M201076

Maximum clearance,

outer rotor - pump

housing

0.381 mm

TECHNICAL DATA

3-2

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200505

BE engine lubrication system

0

ΛΦ45/55 series

2

Lubricating oil pump gear backlash

Oil consumption

Example:

Average measured fuel consumption:

25 litres/100 km = 250 litres/1000 km

Maximum permissible engine oil consumption:

0.5% x 250 = 1.25 litres/1000 km

-

Engine oil consumption of 1.25 litres /

1000 km is permissible

-

Engine oil consumption > 1.25 litres /

1000 km; check the engine using the

diagnostics table. See "Diagnostics".

M201075

Maximum clearance

of inner and outer

rotor relative to the

pump housing,

measured with a

straight edge

0.127 mm

Lubricating oil pump idler gear - lubricating oil

pump gear

0.25 - 0.30 mm

Crankshaft gear - lubricating oil pump idler gear

0.15 - 0.25 mm

Crankshaft gear - lubricating oil pump gear

0.30 - 0.50 mm

Maximum permissible engine oil consumption

0.5% of the average fuel consumption

©

200505

3-3

BE engine lubrication system

TECHNICAL DATA

ΛΦ45/55 series

2

0

3.2 TIGHTENING TORQUES

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.

Oil sump

(1) Tighten the attachment bolts in the order indicated

Oil cooler

(1) Tighten the attachment bolts in the order indicated

7

1

3

5

8

4

2

6

M201078

12

10

9

11

Oil sump attachment

bolts

24 Nm

(1)

Oil drain plug

60 Nm

M201145

3

4

8

13

12

7

2

10

6

1

5

9

15

14

11

Attachment bolts

connecting oil cooler

to cylinder block

24 Nm

(1)

TECHNICAL DATA

3-4

©

200505

BE engine lubrication system

0

ΛΦ45/55 series

2

Oil pump

Turbocharger oil supply pipe

3.3 FILLING CAPACITIES

Lubrication system

Attachment bolts

24 Nm

Union on filter head

24 Nm

Union on turbocharger

28 Nm

Total capacity, including oil cooler and oil filter

13 litres

Oil sump capacity, maximum level

11 litres

Oil sump capacity, minimum level

8.9 litres