Regada Rematic, Installation, Service And Maintenance Instructions, Page: 27 / 46

STR 0PA 25
4.2 Maintenance - extent and periodicity
During inspections and maintenance is needed to tighten all screws and nuts that affect the
tightness and coverage. Similarly, once a year should be checked and if necessary tighten mounting
screws of the terminal wires and assuring of the slip-on joints with wires.
The interval between two preventive inspections is four years.
The replacement of cover gaskets and gasket of an oil filling is needed in case of damage or after 6
years of the operation.
The grease in the supplied actuators is designed for the lifetime of the product.
It is not necessary to change the grease during the operation of the actuator.
Lubrication:
•
- gear part – grease HF 401/0 (GLEIT-
µ
) resp. GLEITMO 585 K
•
- linear adapter – grease GLEIT-
µ
- HP 520M.
Lubrication of the valve stem is independent on maintenance of the EA!
After every potential flooding of the product check, whether there is no water inside. After eventual
water penetration, dry the product before repeated putting into operation and replace damaged
sealings, resp. other parts of EA. identically check also tightness of cable bushings and replace them,
if they are damaged.
•
Every six months it is recommended to perform one check move in frame of adjusted operation
stroke to verify reliability of functioning with setting back to the original position.
•
If the audit rules do not determine else the inspection of EA is performed ones a year and
tightening of all connecting and grounded screws have to be checked to avoid overheating.
•
After 6 months from putting of EA into operation and once a year it is recommended to check
tightening of fixing screws between the EA and the valve. (Tighten the screws with the cross
system.)
•
While connecting and disconnecting of the EA check the tightness of cable glands –
those with damaged sealings should be replaced by new ones of the approved type!
•
Keep the EA clean and take care about removing impurities and dust. The cleaning has
to be performed regularly according to the operation possibilities and requirements.
4.3 Troubleshooting
At failure of power supply the EA stops in the position where it was before the failure. If needed
the EA can be set only with the manual control (the hand wheel). After restoration of power the EA is
prepared for operation.
In case of failure of any element of the EA it can be changed by a new one. Entrust the change
to a service centre.
In case of an EA failure, which cannot be eliminated directly in operation, follow instructions for
under-guaranty and after-guaranty service.
The EA electronics makes possible to identify some failures of the electric actuator. Failures are
signalled with the flickering LED ERROR on the control unit (Fig. 6) . The list of errors and warnings
and the way for identifying a given error as well are presented in the separate attachment No 74 1053
02.
The list of errors and warnings compiled by the producer is presented in table 3. A change to the list of
errors and warnings in the EA is only possible within a service intervention, through the program
installed in a PC.