Athena 1090 EVO, Перевод оригинальной инструкции, Страница: 117 / 182

117
6.2 Maintenance: Details
The following points deal with the most significant specific cases
6.2.1 Checking and tightening screws, bolts, plug ring nuts
The operation of the following components must be checked. If necessary, the
parts must be tightened with the appropriate tools as indicated in the charts on
the following pages.
Clamping forces and tightening torque for bolts with a normal stroke metric
thread (
use the Ma
’
torque )
Resistance class in accordance with DIN/ISO 898 8.8
Yielding point Rp 0,2 N/mm² 640 for <= M16 / 660 for >=M16
Metric thread
ISO
Cross-section
of the
powered zone
Cross section of
the thread
Clamping
force
For hydraulic
and electrical
torque wrench
Ma
’ = 0.9
MD* for the
wrench
DIN 13 AS mm² A3 mm² FM [kN] MA [Nm] MA ’ [Nm]
M12 84.3 76.2 38.5 87 78
M14 115 105 72 140 126
M16 157 144 91 215 193
M18 193 175 117 300 270
M20 245 225 146 430 387
M22 303 282 168 580 522
M24 353 324 221 740 666
M27 459 427 270 1100 990
M33 561 519 335 1500 1350
M36 694 647 395 Bolt determined by measuring
the yielding M39 817 759 475
M42 976 913 542