38
RHDE250 to RHDE4000 (Contrac)
ELECTRICAL ROTARY ACTUATOR | OI/RHDE250_4000-EN REV. B
… 11 Maintenance
Removing the motor and adjusting the brakes
WARNING
Risk of injury!
The actuator position may be changed accidentally by the
repelling power of the valve when the motor is removed or the
brake is released.
• Make sure that no process forces are exerted on the lever.
In automatic mode, the brake is nearly not exposed to any
mechanical wear, since it is permanently released. Any
readjustment is not necessary. Use the test function of the
configuration software to check the brake.
Oil change
Note
Oils for different temperature ranges may not mixed.
During an oil change, thoroughly remove any oil that may have
escaped to avoid accidents.
Dispose of old oil according to local regulations. Make sure that
the oil does not enter the water cycle. Make sure that any oil
leaking from the device cannot come into contact with hot
components.
Proceed as follows to drain or change the oil:
1.
Provide a collecting vessel capable of holding the expected
oil quantity in accordance with
Filling volumes
on page 38 .
2.
Open and release the vent valve, see
Mounting position
on
page 15.
3.
Unscrew the lowermost drain plug to drain the oil.
4. Collect the oil in the collection vessel.
5.
Make sure all of the oil has been removed from the actuator
housing.
6.
Screw the drain plug back in.
7.
Refill with the proper volume of oil in accordance with
Filling
volumes
on page 38 and securely tighten the vent valve.
Oil types
Ambient temperature
Oil types
−
DIN 51517
Default oil filled with delivery Alternative oil
−
25 to 60 °C
(
−
13 to 140 °F)
Mobil SHC 629 – DIN 51517 /
ISO 12925-1
–
−
30 to 40 °C
(
−
22 to 104 °F)
Mobil SHC 626
–
Filling volumes
RHDE250
Mounting position
Minimum oil level
l (gal)*
Min. oil level under inspection plug
mm (in)
IMB 3
Approx. 4.7 (1.24)
40 (1.57)
IMB 6
Approx. 4.7 (1.24)
12 (0.47)
IMB 7
Approx. 4.7 (1.24)
15 (0.59)
IMV 6
Approx. 4.7 (1.24)
Lower edge of upper oil plug
RHDE500 / RHDE800
Mounting position
Minimum oil level
l (gal)*
Min. oil level under inspection plug
mm (in)
IMB 3
Approx. 10 (2.65)
57 (2.24)
IMB 6
Approx. 11.5 (3.04)
Lower edge of upper oil plug
IMB 7
Approx. 10 (2.65)
15 (0.59)
IMV 6
Approx. 10 (2.65)
Lower edge of upper oil plug
RHDE1250 / RHDE2500 / RHDE4000
Mounting position
Minimum oil level
l (gal)*
Min. oil level under inspection plug
mm (in)
IMB 3
Approx. 29 (7.67)
75 (2.95)
IMB 6
Approx. 32 (8.47)
90 (3.54)
IMB 7
Approx. 34 (8.98)
80 (3.15)
IMV 6
Approx. 26.5 (7.01)
35 (1.38)
* US
liquid
gallon
