DAF CF65, CF75, CF85 Series . Manual — part 241

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Inspection and adjustment

PE ENGINE LUBRICATION SYSTEM

CF65/75/85 series

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3. INSPECTION AND ADJUSTMENT

3.1 CHECKING ENGINE OIL CONSUMPTION

Engine oil consumption relates to the engine oil

used during combustion in the engine. Since

engine oil consumption is affected by driving style

and the use to which the vehicle is put, it is also

related to average fuel consumption. See

"Technical data" for the maximum permissible

engine oil consumption.

Test conditions
1.

An engine oil consumption test is only

meaningful after the engine has been run in

(approx. 25,000 km).

2.

Check the engine carefully for engine oil

leakage before carrying out an engine oil

consumption test. First repair any leaks.

3.

Check the average fuel consumption and

engine oil consumption as accurately as

possible.

4.

Only check the engine oil level when the

engine is at operating temperature and only

when the engine has been turned off for five

minutes.

5.

Make sure the vehicle is horizontal before

checking the engine oil level.

PE ENGINE LUBRICATION SYSTEM

3-2

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Inspection and adjustment

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CF65/75/85 series

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3.2 INSPECTION, LUBRICATING OIL PRESSURE

1.

Bring the engine up to operating

temperature.

2.

Remove the lubricating oil pressure sensor.

This sensor is mounted on the oil filter

housing.

3.

In the oil pressure sensor connection, fit a

lubricating oil pressure gauge and the

special tool (DAF no. 0535551).

4.

Start the engine and measure the lubricating

oil pressure at idling speed and at full-load

engine speed. Compare the pressure

readings with the technical data. See

"Technical data".

Note:

The pressure limiting valve mounted in the

oil sump cannot be adjusted.

5.

Switch off the engine and remove the

lubricating oil pressure gauge. Fit a new

sealing ring to the oil pressure sensor and fit

the sensor.

3.3 PRESSURE TESTING THE LUBRICATING OIL COOLER

1.

Remove the lubricating oil cooler. See

"Removal and installation".

2.

Place the special tools (DAF no. 1240476)

and (DAF no. 1240477) on the lubricating oil

cooler.

3.

Apply up to 2.5 bar of pressurised air to the

special tool.

4.

Immerse the lubricating oil cooler in hot

water (approx. 50

°C) and check the

lubricating oil cooler for leaks.

Note:

The lubricating oil cooler should be replaced

if it is leaking.

5.

Fit the lubricating oil cooler. See "Removal

and Installation".

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1240476

1240477

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4-1

Removal and installation

PE ENGINE LUBRICATION SYSTEM

CF65/75/85 series

2

7

4. REMOVAL AND INSTALLATION

4.1 REMOVAL AND INSTALLATION, OIL FILTER ELEMENT

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To prevent skin injury, avoid

unnecessary contact with the

drained lubricating oil.

Discard the oil filter element.

Removing the oil filter element
1.

Unscrew the cap (2) a few turns and drain

the filter housing. Collect the oil.

2.

Remove the cap (2) with the oil filter element

(3) from the filter housing (1) and then

remove the element from the cap.

Fitting oil filter element
1.

Fit a new O-ring to the cap (2).

2.

Fit the oil filter element with the cap in the

filter housing and tighten the cap to the

specified torque. See "Technical data".

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M201049

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Removal and installation

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CF65/75/85 series

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4.2 REMOVAL AND INSTALLATION, OIL-FILTER HOUSING

Removing the oil-filter housing
1.

Drain the oil from the filter housing by

loosening the cap (2) a few turns.

2.

Disconnect the electrical connections from

the lubricating oil pressure sensor.

3.

Remove the oil-filter housing (1).

Installing the oil-filter housing
1.

Replace the O-rings (7) on the rear of the

filter housing (1).

2.

Fit the filter housing (1) and tighten the

attachment bolts to the specified torque. See

"Technical data".

3.

Hand-tighten the cap (2) and then tighten to

the specified torque. See "Technical data".

4.

Run the engine for a short time and check for

oil leaks.

5.

Check the lubricating oil level.

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