DAF 95XF. Manual — part 4

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Threaded connections

TECHNICAL DATA

3-3

Overview of standard tightening torques for
DAF fastenings, strength class 8.8/8

Thread

Tightening torque in Nm

M4

2,8

0,2

M5

5,5

0,4

M6

9,6

0,7

M8

23

2

M10

46

4

M12

79

6

M14

125

9

M16

195

14

M18

280

20

M20

395

30

M22

540

40

M24

680

50

M27

1000

70

M30

1350

100

Overview of standard tightening torques for
DAF flange bolts and nuts, strength class

12.9/12.

Thread

Tightening torque in Nm

M8

32

3

M10

67

5

M12

113

9

M14

178

14

M16

274

22

M18

385

30

M20

550

43

M22

740

60

M24

925

72

M27

1370

110

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TECHNICAL DATA

Threaded connections

3-4

Overview of standard tightening torques for
DAF clamping flange bolts and nuts,
strength class 12.9/12

Thread

Tightening torque in Nm

M12

178

14

M14

274

22

M16

425

35

M18

550

45

Overview of tightening torques, banjo bolts

Thread

Tightening torque in Nm

M6

8

0,8

M8

15

1,5

M10

30

3

M12

40

4

M14

50

5

M16

60

6

M18

70

7

Torque wrench
-

Have torque wrenches regularly inspected
and calibrated.

Re-use of fasteners (bolt/nut/threaded end)
1.

Clean the thread (take particular care to
remove locking compound residues) and
the clamping faces.

2.

Check the thread for damage.
Screw a new nut/bolt onto the thread by
hand to check it.
If the new nut/bolt cannot be screwed down
over the whole thread of the fastener to be
checked, the fastener must not be reused.

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Threaded connections

TECHNICAL DATA

3-5

3.

Apply one drop of engine oil to the first turn
of the bolt(/threaded end)/lower turn of the
nut and one drop to the clamping faces
(other lubricants are not allowed).

4.

If a locking compound was specified, no oil
should be applied to the thread.

New bolts/nuts
New DAF bolts and DAF nuts, except bolts M4
to M8 with inner-Torx, are all treated with a
lubricant.
If bolts have not been treated with a lubricant,
this should be done as yet.

1.

Apply one drop of engine oil to the first turn
of the bolt/lower screw thread of the nut and
one drop to the clamping faces (other
lubricants are not allowed).

2.

If a locking compound was specified, no oil
should be applied to the thread.

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TECHNICAL DATA

Threaded connections

3-6

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