DAF CF65, CF75, CF85 Series . Manual - part 1116

©

 200518

1

Contents

THREADED CONNECTIONS

ΧΦ65/65 (II) series

2

2 Threaded connections

CONTENTS

Page

Date

1.

THREADED CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 . . . . . 200518
1.1

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 . . . . . 200518

THREADED CONNECTIONS

2

©

 200518

Contents

2

ΧΦ65/65 (II) series

©

 200518

1-1

Threaded connections

THREADED CONNECTIONS

ΧΦ65/65 (II) series

2

1. THREADED CONNECTIONS

1.1 GENERAL

The components may have threaded connections 

that have been treated with lubricant (dipped 

threaded connection). Galvanised bolts and nuts 

are wax dipped in the factory. Black annealed 

and phosphatised bolts and nuts are oil dipped. 

The advantage of using dipped nuts and bolts is 

that friction during tightening is reduced, so that 

the specified pre-tension force can be accurately 

obtained. The tightening torque can be reduced 

while the pre-tension force remains the same.

To achieve a small spread in the pre-tension 

force, the dipped threaded connection must be 

tightened accurately.

Therefore, always use a reliable torque wrench 

that provides a high degree of accuracy.

Note:

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. 

To do so, manually screw a new nut/bolt onto 

the thread to be checked. 

If the new nut/bolt cannot be fully hand-

screwed onto the entire thread of the 

fastener to be checked, the fastener is not 

allowed to be re-used. 

3.

Apply one drop of engine oil to the upper 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 has been specified, oil 

should not be applied to the thread.

THREADED CONNECTIONS

1-2

©

 200518

Threaded connections

2

ΧΦ65/65 (II) series

The following applies to all threaded 
connections (for both new and used 
vehicles):
-

in the case of standard connections, apply 

the lubricant before fitting, and (re)tighten in 

accordance with the standard for dipped 

bolts;

-

in the case of special connections, apply the 

lubricant before fitting, and (re)tighten in 

accordance with the values specified in the 

instructions.

The instructions for using lubricants also apply to 

new bolts from the warehouse. Dry threaded 

connections may not be used because of their 

highly variable friction coefficients.

Please consult the workshop manual 

for the specified tightening torque.

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