PRONAR T663/1, Руководство оператора, Страница: 128 / 135

Pronar T663/1 T663/1 SILO SECTION 5
5.34
Unless other tightening parameters are given, during maintenance repair work apply
appropriate torque to tighten nut and bolt connections. Recommended tightening torque for
the most frequently used nut and bolt connections are given in table below. Given values
apply to non-lubricated steel bolts.
TABLE 5.7 Tightening torque for nut and bolt connections
5.8
(1)
8.8
(1)
10.9
(1)
THREAD
METRIC
Md [Nm]
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
(1)
– strength class according to DIN ISO 898 standard
Hydraulic conduits should be tightened using torque of 50 – 70 Nm.
5.11 INSTALLATION AND DISMOUNTING OF WALL
EXTENSIONS
DANGER
Installation and dismounting of wall extensions should be carried out with the use of
appropriate platforms, ladders or when standing on a ramp. These tools must be in good
condition to fully protect the persons working on them against falling. Work should be
performed by at least two persons. Exercise particular caution.