DAF CF65, CF75, CF85 Series . Manual — part 269

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200324

1-1

Safety instructions

XE ENGINE LUBRICATION SYSTEM

CF65/75/85 series

2

10

1. SAFETY INSTRUCTIONS

1.1 SAFETY INSTRUCTIONS

Fuel

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Diesel fuel is an extremely

flammable liquid, and must not be

exposed to naked flames or come

into contact with hot surfaces. The

diesel fuel fumes remaining in an

empty fuel tank form an extremely

explosive mixture.

When fuel system components are being

removed, some fuel will escape.

To keep this spillage to a minimum, unscrew the

tank cap to release any overpressure.

Any spilled fuel must be collected, bearing in

mind the risk of fire.

Exhaust gases
Do not run the engine in an enclosed or

unventilated area.

Make sure exhaust fumes are properly extracted.

}

Exhaust gases contain carbon

monoxide.

Carbon monoxide is a deadly

colourless and odourless gas,

which, when inhaled, deprives the

body of oxygen, leading to

asphyxiation. Serious carbon

monoxide poisoning may result in

brain damage or death.

Moving parts
Remain at a safe distance from rotating and/or

moving components.

Various fluids
Various oils and lubricants used on the vehicle

may constitute a health hazard.

This also applies to engine coolant, windscreen

washer fluid, refrigerant in air-conditioning

systems, battery acid and clutch fluid.

So avoid inhaling and direct contact.

Electr

ical short-circuit

Always disconnect the battery's earth connection

during repair or maintenance operations for

which the electric power supply is not required.

XE ENGINE LUBRICATION SYSTEM

1-2

©

200324

Safety instructions

10

CF65/75/85 series

2

©

200324

2-1

General

XE ENGINE LUBRICATION SYSTEM

CF65/75/85 series

2

10

2. GENERAL

2.1 SYSTEM DESCRIPTION, LUBRICATION SYSTEM

M200907

XE ENGINE LUBRICATION SYSTEM

2-2

©

200324

General

10

CF65/75/85 series

2

General
The oil pump is driven by an idler gear directly

from the crankshaft. The oil pump (1) draws the

lubricating oil from the oil sump, and pumps it via

the oil cooler (2) and the oil filter (3) to the main

lubricating oil channel (4) in the cylinder block.

From the main lubricating oil channel, the

lubricating oil is further distributed to the various

components requiring lubrication.

Oil cooler
The oil cooler (2) is connected to the cooling

system. The oil cooler warms up the lubricating

oil in a "cold" engine and cools it in a "warm"

engine.

Parallel to the oil cooler, a bypass valve (S1) has

been installed, which opens at a pressure

difference of about 2 bar. If the oil cooler is

blocked, or in the event of extremely low

temperatures, the bypass valve will open at a

pressure difference of about 2 bar. In this

situation, uncooled lubricating oil will enter the

lubrication system.

Centrifugal filter
A centrifugal filter (17) may be included parallel to

the lubrication system. In this case, lubricating oil

will flow from the oil cooler to the centrifugal filter.

In the centrifugal filter, the lubricating oil

undergoes extra filtering.

M201280

Rocker

assembly

Idler gear/

timing gears

Piston

pin 11

Piston 12

Piston

rod 10

Fandrive

gear

Pump

1

5

8

S1

Oil cooler

Centrifugal

filter

S2

P

15

9

6

13

14

16

DEB unit/

Oilstrip

Camshaft

7

Crankshaft

UPEC pump

Compressor

Turbo

charger

4

3

2

17

Main duct

Filter