PRONAR T700M/1, Перевод оригинальной инструкции

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Section 5 Technical inspection schedule
5.32 PRONAR T700M/1
5.20 INSPECTION OF NUT AND BOLT CONNECTIONS
TIGHTENING TORQUE FOR NUT AND
BOLT CONNECTIONS
During maintenance or repair work, apply
appropriate torque when tightening bolt
and nut connections, unless other tight-
ening torque values are given. Recom-
mended tightening torque values for the
most frequently used bolt and nut connec-
tions are given in Table 5.6. Given values
apply to non-lubricated steel bolts.
Hydraulic lines should be tightened with
a torque of 50-70 Nm.
Tightening torque should be checked using
a torque wrench. During daily inspection
of the trailer, pay attention to loosen con-
nections and tighten them, if necessary.
Lost components must be replaced with
new ones.
TIGHTENING OF WHEEL NUTS
Wheel nuts should be tightened gradually
and diagonally (in several stages, until
the required tightening torque is obtained)
using a torque wrench. See FIGURE 5.15
for the recommended nut tightening se-
quence and tightening torque value.
Wheel nuts must not be tightened with
impact wrench because of danger of ex-
ceeding permissible tightening torque, the
Thread
Tightening torque
5.8
(*)
8.8
(*)
10.9
(*)
M8 18 25 36
M10 37 49 72
M12 64 85 125
M14 100 135 200
M16 160 210 310
M20 300 425 610
M24 530 730 1,050
M27 820 1,150 1,650
M30 1,050 1,450 2,100
Table 5.6
Tightening torque values
(*) – resistance class according to DIN ISO 898
standard
d
8.8
589-I.10-1
1
Figure 5.15 Bolt with metric thread
(1) strength class, (d) thread diameter