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9. PACKING AND STORING
For inland freight, the actuators are unpacked. However, they should be transported by covered conveyances or
in transport containers.
For delivery abroad, the actuators should be packed, the type and design of package being adapted to the transport
conditions and the distance of the place of destination. Upon receipt of the actuator from the factory, it is essential to check that
no damage was caused during transport and to compare the data on the actuator rating plates with those contained in the order
and accompanying documentation. Any discrepancy, defect or damage should be immediately reported to the supplier.
When the unpacked actuator is not immediately installed it should be stored at a dust-free location with a temperature
within the range of - 25 °C to + 50 °C and relative humidity up to 80% where there are neither aggressive gases nor
vapours and which is secured against the harmful effects of climatic conditions. If the actuator is to be stored for a longer
period than 3 years then, prior to commissioning, oil refilling should be made. Any manipulation of the equipment at
a temperature below - 25 °C is forbidden. Storing the actuator out of doors or at a location that is not protected against the
effects of rain, snow or ice accretion should be avoided. Before putting the actuator into operation, slush should be
removed. When unpacked actuators are to be stored longer than 3 months it is advisable to place a bag with silica gel or
another suitable dessicant in the terminal box.
10. CHECKING OF THE INSTRUMENT FUNCTION AND ITS LOCATION
Prior to installation, make sure that the actuator was not damaged during storing. A functional check of the electric-
motor can be made so that it is connected to the AC mains via a circuit breaker and started for short-time operation. In
this case, it is sufficient to make sure that the electric motor starts and turns the output shaft. The actuator should be
installed so as to obtain easy access to the handwheel, the terminal box and the control box. It is also imperative to check
that the installation complies with the Clause “Operating Conditions”. If another method of installation is required due to
local conditions, please consult the manufacturer.
11. ATTACHMENT TO A FITTING
Place the actuator on the fitting so that the output shaft fits dependably in the coupling thereof. Attach the actuator to
the fitting by 4
(8)
screws and check the attachment by rotating the handwheel. Remove the terminal box cover and wire
the actuator, according to the internal and external circuit layouts.
For handling the actuator during assembly with the fitting, make use of the three suspension lugs with which
the actuator is provided. In no case, these lugs can be used for suspension of the actuator with the fitting.
The actuator must be properly protected against both overloading and short-circuiting.
12. ADJUSTMENT OF THE ACTUATOR WITH A VALVE
After fitting the actuator on the valve and checking mechanical connection, the assembly is set up and adjusted.
Setting-up and adjustment can only be carried out by a person with prescribed qualification. These works may not be
carried out without properly studying these assembly instructions. Adjustment is accomplished according to instructions
for the given type of electronics
(DMS2, DMS2 ED)
and outfit
(manual, program).
13. OPERATION AND MAINTENANCE
Depending on the operating conditions, the operation of rotary actuators usually involves only the transmission of
pulses, as required for the individual functions. In the event of a power supply failure, readjust the controlled device by the
handwheel. If the actuator has been connected in the circuit of automatic equipment
(which does not imply
the control mode)
it is advisable that manual remote control units are connected in the circuit so that the actuator can
be controlled even if a failure of the automatic equipment occurs.
It is the operator’s duty to ensure that the actuator is given the prescribed maintenance attention and is protected
against the harmful effects of ambient and climatic conditions not included in the Clause “Operating conditions”.
Within half a year at the latest from putting the actuator into operation and then at least once a year, it is necessary to
properly tighten the bolts connecting the valve with the actuator. The bolts are to be tightened in a cross-wise manner.
Lubrication
The actuators are lubricated with plastic consistent lubricants or gearbox oil PP 80.
