Lubrication
43/68-13 EN
Electrical Linear Actuators for Continuous Modulating Control LME620AI / LME620AN (Contrac)
7
4
Lubrication
The spur wheel gearings of LME620AI / LME620AN are grease lubricated.
4.1
Mounting position
Any mounting orientation is permissible. To facilitate mounting and maintenance, however, it is recom-
mended to use orientation IMV 1 (thrust rod downwards).
In all mounting orientations the actuator may not be exposed directly to rain, snow or other environ-
mental influences.
4.2
Grease specifications
Table 1:
5
Maintenance
Contrac actuators feature a robust construction. As a result, they are highly reliable and require only
little maintenance. The maintenance intervals depend upon the effective load.
The built-in microprocessor evaluates the actual load factors (e.g. torques, movements, temperatures,
etc.) and derives the remaining operating time until the next routine maintenance is required. Use the
configuration program for viewing this information.
CAUTION
All maintenance work must be carried out by qualified specialists who have been trained for this task.
Switch-off the power supply and protect the actuator against unintentional switch-on prior to any main-
tenace. Make sure that disconnecting the power or any mechanical linkage does not endanger the any
process or person. Make sure that the actuator is not exposed to process forces during the maintenance
work.
Apart from the load dependent maintenance intervals determined by the microprocessor we recom-
mend routine maintenance at least every 10 years.
The following description of the maintenance work provide that the actuator is disconnected from the
valve and that all electrical supply is disconnected.
Actuator type
Grease specification
spindle
Optimol Optipit
gear wheels
ESSO Beacon 325
