FLENDER H2SH 24 - Bolt Connection Classes; Tightening Torques and Preload Forces

5.6.2 Bolt connection classes
In order to affix fastening bolts, note the information in the following table:
Table 5-1 Information on tightening fastening bolts
Mounting Bolt connection
class
Scatter of the tor‐
que emitted on the
tool
Tightening procedure
Gear unit
Motor
Brake
Torque arm
C ± 5 % to ± 10 %
● Hydraulic tightening with
mechanical screwdriver
● Torque-controlled tightening with
a torque wrench or a signal-
emitting torque wrench
● Tightening with a precision
mechanical screwdriver with
dynamic torque measurement
D ± 10 % to ± 20 %
● Torque-controlled tightening with
mechanical screwdriver
Protection cover
Sun shield
E ± 20 % to ± 50 %
● Tightening with pulse
screwdriver or impact wrench,
without adjustment checking
device
● Tightening by hand, using a
wrench without torque
measuring device
Further information
You can find additional information about tightening torques when mounting motor and brake
in the operating instructions from the particular manufacturer.
5.6.3 Tightening torques and preload forces
The specified bolted connections must be tightened to the torques stated in the table below:
The tightening torques apply to friction values of μ
total
= 0.14.
Assembly
5.6 Tightening procedure
Gear unit 5118en
74 Operating Instructions 10/2017