DAF LF45 Series, Manual

Page: 13 / 74

©
200338 3-3
Threaded connections
TECHNICAL DATA
ΛΦ45/55
series
0
0
Overview of standard tightening torques for
DAF clamping flange bolts and nuts, strength
class 12.9/12
Overview of tightening torques, banjo bolts
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.
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.
Thread Tightening torque
in Nm
M12 178
≥
14
M14 274
≥
22
M16 425
≥
35
M18 550
≥
45
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