Lubrication And Maintenance - Elster RABO Series Instruction Manual

8. Lubrication and Maintenance

- Only use original spare parts supplied by Elster-Instromet.
- Fill with oil before commissioning.
- To fi ll with oil, depressurise the meter.
- The quantity of oil required for operation, as well as a syringe for fi lling, are
included in the delivery.
- Use Shell Morlina S2 BL 10 oil.
(Inspection kit Ident.No. 73016605 or 73014893).
- There are two oil fi lling and draining openings (M10) and one oil level inspection
opening (M12) on the front of the meter.
- Unscrew the fi ller neck (M10) and the oil level inspection nozzle (M12) in the
front housing cover.
- Fill with oil slowly, using the syringe. The oil quantity is correct when the oil is
visible in the threads of the oil level inspection borehole.
The required quantity of oil depends on the installation position; for guidance,
see table below.
Flow direction
Horizontal
Vertical
Guide values for oil quantity on commissioning and for oil changes (in ml)
3
1 = oil filling opening 2 = level inspection nozzle 3 = oil draining opening
- Reseal the oil fi lling and oil level inspection openings (seal with O-ring).
- Once it has been commissioned, the measuring instrument does not require any
special servicing or oil level inspections. Generally the oil must be replaced
at least every 5 years.
- Never transport a rotary gas meter containing oil.
- Make sure that the oil is drained out before transporting the meter (e.g. when
sending the meter for repairs), otherwise the oil will penetrate the measuring
chamber and damage the meter.
73021678b © Elster GmbH • All rights reserved • Subject to technical modifi cation
G 16 to G 100
25
100
1
2
Elster-Instromet
G 160 to G 250
25
150
3
13