Lubrication And Maintenance - Elster Instromet RVG Manual De Instrucciones

If you wish to install the unit vertically at a later point, you must turn any other attachments,
e.g. volume corrector, through 90°.
We recommend that you contact our Elster-Instromet Customer Service (Tel. +49
(0)6134-605-0 / -346) for such conversion work.

8. Lubrication and Maintenance

– Only use original spare parts supplied by Elster-Instromet.
– Fill with oil before commissioning.
– To fill with oil, depressurise the meter.
– The quantity of oil required for operation, as well as a syringe for filling, are included in
the delivery.
– Use Shell Morlina 10 oil or equivalent (e.g. Shell Risella 917) (Inspection kit Ident. No.
73016605 or 73014893).
– The front and rear oil chambers are linked with one another, so that the meter can be
serviced with oil from just one side.
Type RVG:
– There are three openings available for filling or draining oil, and two oil-level gauge
glasses on the front and (optionally) on the rear of the meter (Figure 6).
– Unscrew and remove the oil filler plug (E, Figure 6) from the front housing cover.
– Remove one oil filler plug (E) from the rear housing cover, so that the oil can flow more
easily into the rear oil chamber.
Type RVG-ST:
– In the case of horizontal flow, there are two openings available for filling with oil (E or V).
The drain opening A is located at the lowest point. The oil-level gauge glass O is located
on the front side of the meter, below the index (Figure 7, left).
– In the case of vertical flow, there is only one opening available (E) for filling with oil. The
drain opening A is located at the lowest point. The oil-level gauge glass is now located
on the right on the front housing cover (Figure 7, right).
Type RVG and Type RVG-ST:
– Remove the oil filler plug (E, and if applicable V) from the front housing cover.
– Fill with oil slowly, using the syringe. It will take 5 to 10
minutes until the oil reaches the same level in both oil
chambers. The oil volume is correct when the oil level is
located in the lower third of the gauge glass (Figure 5). The
required quantity of oil depends on the installation position;
for guidance, see Tables 3 and 4.
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Elster-Instromet
Figure 5:
Oil level in gauge glass