INSTALLATION & MAINTENACE MANUAL
RCOe2100/03.06
35
Motor case must be flushed
(independently on the motor operating conditions)
in
case of operation in potential explosive hazardous zones
, to ensure an adequate
lubrication of the parts subject to continuous metal to metal contacts and avoid the
local and superficial increase of temperature.
The motors (pls. see picture below) in conformity to the directive “ATEX” 94/9/CE must
be equipped with a
case oil presence capacity sensor
; the sensor itself must be
realised in conformity to the directive “ATEX” 94/9/CE. The sensor must be installed on
the flushing return line (“flushing OUT”).
In case the motor is installed horizontally, the sensor must be located in a higher
position with respect to the shaft seal, as shown in the picture below; in case of vertical
installation it is necessary to follow the indications reported in the “Drain Connections”
section.
The electrical signal provided by the sensor must be used to interrupt the
motor feeding if there is no more oil inside the case.
NB: for information concerning the sensor electrical connections, it is necessary to refer
to the sensor technical documentation provided along with the motor.
Flushing IN
Flushing OUT
Case oil presence capacity
sensor.
