DAF LF45, LF55 Series. Manual - part 645

©

 200515

3-9

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 

locknut 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 6 overlap.

5.

Check/correct the valve clearance of the 

specified inlet and exhaust valves. Set the 

correct valve clearance by loosening the 

locknut and rotating the adjusting screw in 

the correct direction; see "Technical data" for 

the correct valve clearance.

6.

Fit the valve cover. See "Removal and 

installation".

M201064

Cylinder

Inlet valve

Exhaust valve

1

2

X 

3

X 

4

X 

5

X 

6

X 

X 

M201065

A

B

B

Cylinder

Inlet valve

Exhaust valve

1

X 

X 

2

X 

3

X 

4

X 

5

X 

6

EXPLANATORY NOTES ON THE MAINTENANCE ACTIVITIES

3-10

©

 200515

Inspection and adjustment

5

ΛΦ45/55 series

3.11 CHECKING THE POLY-V-BELT

1.

Check the poly-V-belt for damage and signs 

of serious wear. 

3.12 CHECKING THE COOLANT FREEZING POINT

When the coolant is hot, there is an 

overpressure in the cooling system. 

Carefully remove the filler cap to 

release the overpressure.

Do not remove the filler cap when the 

engine is running.

Coolant is a toxic fluid. Contact with 

the skin should therefore be 

avoided.

In the event of contact with the skin: 

remove with paper or a cloth, wash 

with soap and water. If irritation 

persists, consult a doctor.

If swallowed: DO NOT induce 

vomiting. Rinse mouth, drink two 

glasses of water and consult a 

doctor.

In the event of inhalation: get some 

fresh air and rest.

In order to avoid damaging the 

cylinder block, do not top up a warm 

engine with coolant.

1.

Check the anti-freeze content of the coolant. 

Fill the cooling system with anti-freeze, if this 

has not been done yet. Always use only 

coolants that meet DAF specifications.

2.

Consult the manufacturer’s instructions for 

the correct anti-freeze mixing ratio.

Preferably, use 40% anti-freeze on an 

ethylene glycol base. At this percentage, not 

only good frost protection, but also good 

corrosion protection is guaranteed. 

}

%

O

o

M2016

C

100

0

90

10

80

20

70

30

60

40

50

50

40

60

30

70

20

80

10

90

-80

-70

-60

-50

-40

-30

-20

0

-10

0

100

2

H

Ethyleenglycol

©

 200515

3-11

Inspection and adjustment

EXPLANATORY NOTES ON THE MAINTENANCE ACTIVITIES

ΛΦ45/55 series

5

3.13 CHECKING FOR FUEL LEAKS

1.

Visually inspect all hose connections and 

fuel system components for leaks.

3.14 CHECKING THE COMPONENTS AND HOSE CONNECTIONS FOR LEAKS

1.

Check all hose connections and cooling 

system components for leaks.

2.

Check the hose connections and inlet 

system components.

3.15 CHECKING THE EXHAUST SYSTEM

1.

Visually inspect the exhaust system for 

leaks.

2.

Check the exhaust suspension points.

3.

Check that no heat transfer (due to 

accumulated dirt, for example) can take 

place to the exhaust system area, such as 

pipes, components etc.

3.16 CHECKING THE RADIATOR AND INTERCOOLER FOR FOULING

1.

Visually inspect the radiator and intercooler 

for fouling If necessary, clean the radiator 

and intercooler, see "Cleaning".

EXPLANATORY NOTES ON THE MAINTENANCE ACTIVITIES

3-12

©

 200515

Inspection and adjustment

5

ΛΦ45/55 series

3.17 CHECK THE AIR INLET DUST TRAPPING VALVE

1.

Check the rubber sealing valve (1) at the 

bottom of the filter housing for clogging and 

damage.

Steering gear and brake system

3.18 CHECKING THE STEERING BALL JOINT SLEEVE FOR DAMAGE

Inspection, locking devices and dust cover
1.

Check that the steering ball joint dust cover 

or seal is not damaged. Replace the steering 

ball joint if damaged.

2.

If a castle nut is fitted, check that the locking 

devices are present and undamaged.

I4 00 535

3

1

2

S7 00 592