Intervals For Renewing The Operating Fluid; Checking The Operating Fluid - EMG ELDRO EdEx Series Assembly Manual

9 Maintenance
9.2 Maintenance tasks
9.2.2

Intervals for renewing the operating fluid

9.2.3

Checking the operating fluid

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EdEx thrusters are filled with Pentosin operating fluid (hydraulic oil) of
class HL10 DIN 51524 for the temperature range of -25 °C to +40 °C
when delivered. Special operating fluids are required for other
temperature ranges (⇒ Technical data chapter, Operating fluid
section).
Predominantly continuous operation S1

after 18 months in operation
Predominantly switching operation S3

after 1.5 million duty cycles
WARNING
Hot operating fluid
Risk of burns due to hot oil plumes upon opening the filling screw
when at operational temperature.
– The operating fluid may only be checked, topped up or
drained when switched off and cool.
– The EdEx thruster may only opened at a maximum
temperature of 40 °C.
NOTICE
If not filled sufficiently, the thruster does not develop the full lifting
force.
If overfilled, the thruster's internal pressure is impermissibly high.
The EdEx thrusters are filled correctly if the operating fluid level
reaches the lower edge within the filling opening when the thruster is
upright and the lifting rod is retracted.
Observe the disassembly instructions if the EdEx thruster is not
installed upright (⇒ Disassembly chapter).
 Set the EdEx thruster upright.
 Remove the screw plug from the filling nozzle.
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