BA 9137 en 12/2015
6.11
Final work
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After installation of the gear unit, check all screw connections for the connection of the gear unit and
the system for tight fit.
□
Check of the alignment after tightening the fastening elements. The alignment must not have changed.
□
Check that all devices that were uninstalled for transport reasons are reinstalled.
For this refer to the details in the data sheet, the list of equipment and the associated drawings.
DANGER
Explosion hazard
Ignition of an explosive atmosphere is possible from overheating of the gear unit with too low an oil level
because of leakages.
Existing oil drain cocks must be secured against accidental opening.
If an oil-sight glass is used for monitoring the oil level, it must be protected against damage.
□
The gear unit must be protected against dropping objects.
□
Protective devices for rotating parts must be checked for correct seating. Contact with rotating parts
is not permitted.
DANGER
Electrostatic discharge
Danger to life from ignition of present explosive atmosphere by electrostatic discharge.
A potential equalisation in accordance with the applying regulations and directives must be carried out.
Threaded holes for an earth connection are provided on the gear units or on the output flange. This work
must always be done by
trained electricians
.
□
Cable entries must be protected against moisture.
6.12
Screw connection classes, tightening torques and initial stressing forces
6.12.1
Screw connection classes
The specified screw connections are to be fastened applying the tightening torques specified observing
the table below.
Table 8:
Screw connection classes
Fastening of
Screw connection
class
Tightening procedure
D
– Torque-controlled tightening with mechanical screwdriver
Inspection-hole cover
Protective hood
E
– Tightening with pulse screwdriver or impact wrench without
adjustment checking device
– Tightening by hand, using a spanner without
torque measurement
