14.4.3
Bearings
The nominal lifetime of the bearings is L10h = 30,000 h according to
DIN ISO 281, ed. 1990, provided the permissible radial and axial forces are
not exceeded.
The motor bearings should be replaced if
●
the nominal bearing service life has been reached,
●
running noises occur.
We recommend that bearings be replaced by the Bosch Rexroth
Service.
14.4.4
Connecting cables
Death by electrocution possible due to live
parts!
DANGER
If the slightest defect is detected in the cable sheath, the system must be
shut down immediately. Then the cable must be replaced.
Do not repair any connection lines provisionally.
●
Check connection cables for damage at regular intervals and replace
them, if necessary.
●
Check any optional energy management chains (drag chains) for de‐
fects.
●
Check the protective conductor connection for proper state and tight
seat at regular intervals and replace it, if necessary.
Bosch Rexroth AG
DOK-MOTOR*-MSK*EXGIIK3-PR09-EN-P
160/175
Synchronous Servomotors MSK For Potentially Explosive Areas
Commissioning, operation and maintenance