DAF LF45, LF55 Series. Manual - part 644

©

 200515

3-5

Inspection and adjustment

EXPLANATORY NOTES ON THE MAINTENANCE ACTIVITIES

ΛΦ45/55 series

5

3.8 CHECKING THE ENGINE OIL LEVEL

1.

Ensure that the vehicle is entirely horizontal.

2.

Pull the dipstick (2) out of the holder.

3.

Wipe the dipstick clean with a lint-free cloth.

4.

Put the dipstick back into the holder.

5.

Pull the dipstick out again and check the oil 

level.

Note:

It takes approx. 20 minutes for all the oil to 

run into the sump when the engine is "warm". 

If the dipstick is checked immediately after 

switching the engine off or immediately after 

oil has been added, the level shown on the 

dipstick will be too low.

6.

Fill oil through the filler opening (1) until the 

oil level reaches the maximum mark. See 

"Draining and filling". Always use the 

specified oil. Do not top up above maximum 

level.

Note:

For the difference between minimum and 

maximum engine oil level, see "Technical 

data".

2

1

G0 00 212

EXPLANATORY NOTES ON THE MAINTENANCE ACTIVITIES

3-6

©

 200515

Inspection and adjustment

5

ΛΦ45/55 series

3.9 CHECKING AND ADJUSTING BE ENGINE VALVE CLEARANCE

Note:

Checking and adjusting valve clearance must 

only be done when the engine is cold.

1.

Remove the valve cover. See "Removing 

and installing".

2.

Use an open-end spanner on the fan shaft to 

turn the crankshaft clockwise, as seen from 

the vibration damper end (this is the engine's 

normal direction of rotation), until the mark 

(A) is between the bolts (B) and the valves of 

cylinder 1 are in overlap position.

Note:

"Overlap" is the moment at which the inlet 

valves start opening and the exhaust valves 

stop closing.

The inlet valves are operated by the short 

rockers and the exhaust valves by the long 

rockers.

M201318

M201065

A

B

B

©

 200515

3-7

Inspection and adjustment

EXPLANATORY NOTES ON THE MAINTENANCE ACTIVITIES

ΛΦ45/55 series

5

3.

Check/correct the valve clearance of the 

specified inlet and exhaust valves. Set the 

correct valve clearance by loosening the lock 

nut and rotating the adjusting screw in the 

correct direction; see "Technical data" for the 

correct valve clearance.

4.

Using an open-end spanner on the fan shaft, 

turn the crankshaft one rotation further so 

that the mark (A) is once again between the 

bolts (B) and the valves of cylinder 4 overlap.

5.

Check/correct the valve clearance of the 

specified inlet and exhaust valves. Set the 

correct valve clearance by loosening the lock 

nut and rotating the adjusting screw in the 

correct direction; see "Technical data" for the 

correct valve clearance.

6.

Fit the valve cover. See "Removing and 

installing".

7.

Fit the flexible pipe, air inlet pipe and bracket.

M201064

Cylinder

Inlet valve

Exhaust valve

1

2

X 

3

X 

4

X

X 

M201065

A

B

B

Cylinder

Inlet valve

Exhaust valve

1

X 

X 

2

X 

3

X 

4

EXPLANATORY NOTES ON THE MAINTENANCE ACTIVITIES

3-8

©

 200515

Inspection and adjustment

5

ΛΦ45/55 series

3.10 INSPECTION AND ADJUSTMENT, CE ENGINE VALVE CLEARANCE

Note:

Inspection and adjustment of valve clearance 

must only be carried out when the engine is cold.

1.

Remove the valve cover. See "Removal and 

installation".

2.

Use an open-end spanner on the fan shaft to 

turn the crankshaft clockwise, as seen from 

the vibration damper end (this is the engine's 

normal direction of rotation), until the mark 

(A) is between the bolts (B) and the valves of 

cylinder 1 are in overlap position.

Note:

"Overlap" is the moment at which the inlet 

valves start opening and the exhaust valves 

stop closing.

The inlet valves are operated by the short 

rockers and the exhaust valves by the long 

rockers.

M201318

M201065

A

B

B