15
8)
Rotate the tripping rod -58- at an angle of 90°. As a result, the rod should shift out again. If this is not the case, turn
the screw -59- or -56- by a small amount.
Note:
Turning the regulating screw -56- or -59- should be stopped at the instant of change-over.
If the cams are in the position shown in Fig.9 before they are adjusted, or the cam has already pressed down
the button of the microswitch, the following procedure is used to advantage:
With the tripping rod -58- depressed and positioned, turn the adjusting screw -56- or -59- anticlockwise till the cam
withdraws at its peak from the microswitch lever towards the adjusting screw and the microswitch changes over
(which can be checked by a suitable indicating tester). Then, move the cam peak back up to the microswitch lever by
turning the adjusting screw -56- or -59- backwards in the direction of the arrowhead till the microswitch opens again
(with its button depressed). Thus, the adjusting procedure of the microswitch has been completed. Finally, shift out the
tripping rod -58-, as described above.
Manual control
The actuator outlet shaft can also be reset manually by means of a hand wheel. By turning the hand wheel clock
-wise, the valve is closed (left thread in the valve is assumed). Before starting the manual control, the lock screw (Fig.1)
should be loosened so that the hand wheel can turn freely. After resetting the outlet shaft to the desired position,
the lock screw should be again tightened to the nearest of six holes in the locking flange.
6. 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.
7. 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.
8. 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.
Summary of Contents for MODACT MON 100/130-100
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