Sealing The Rolling-Contact Bearings ("Increased Degree Of Protection" Option); Cleaning The Cooling Air Ducts; Replacing A Filter Mat - Siemens SIMOTICS FD 1LL1 Operating Instructions Manual

Lubricating roller bearings prior to commissioning
When properly stored prior to commissioning for a longer period of time, normally the grease
in the bearings does not deteriorate within two years. Please note the information regarding
long-term storage.
When commissioning, the bearings must be relubricated with twice the amount of lubricating
grease. When doing this, the shaft must rotate so that the grease is replaced in the bearings.
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 air ducts

The cooling ducts must be free of any pollution in order that the machine is adequately cooled.
Regularly clean the grids, ducts, ribs, pipes etc. to remove dust and pollution.
9.1.12

Replacing a filter mat

1. Switch off the motor while changing a filter.
2. When replacing a filter, wear protective overalls, a mask to provide protection against fine
SIMOTICS FD 1LL1
Operating Instructions 04/2016
dust as well as protective eyewear and gloves.
Maintenance
9.1 Inspection and maintenance
121