Siemens SIMOTICS FD 1LH1, Operating Instructions & Installation Instructions

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9.1.10 Sealing the rolling-contact bearings ("Increased degree of protection" option)
Relubricating the grease tank
In order to achieve optimum sealing of the rolling contact bearings and to reliably seal the
labyrinth joints with grease, the chamber must be relubricated at regular intervals. The
procedure is the same as that for lubricating grease. The sealing effect during operation is
optimum as long as a small amount of relatively clean grease is forced out.
Regreasing intervals
The necessary relubrication intervals depend essentially on the level of dirt in the environment
and on the ON time of the motor. For this reason, they can only be defined taking into account
the respective operating conditions. Make sure that the groove in the seal is full of grease at all
times.
9.1.11 Cleaning the cooling water ducts
To ensure proper functioning of the machine cooling system, the cooling water ducts must be
free of dirt deposits.
● Have the cooling water ducts cleaned by a specialist company. Cleaning devices are
connected to the coolant connections. Dirt is dissolved and rinsed out through the circulation
of suitable solutions in the cooling water ducts.
● You can also remove limescale deposits with a commercially available scale solvent.
9.1.12 Touch up any damaged paintwork
If the paint is damaged, it must be repaired in order to protect the unit against corrosion.
Note
Paint system
Contact the Service Center (Page 163) before you repair any paint damage. They will provide
you with more information about the correct paint system and methods of repairing paint
damage.
9.1.13 Maintaining terminal boxes
Requirement
The machine is de-energized.
Maintenance
9.1 Inspection and maintenance
SIMOTICS FD 1LH1
Operating Instructions 01/2019
131