OVZ
OVZ K03/0416
page 15
13. Maintenance
The meter requires no maintenance if the measured medium is not contaminated.
Should it be necessary to clean the meter, the case cover can be easily removed
to gain access to, and clean, the inside of the case (see Sec. 12. Dismantling
/Installation).
14. Dismantling / Installation
Dismantling:
Drain piping.
Loosen cover screws and remove cover and O-ring.
Mark the position of the gearwheels relative to one another with a pencil.
Remove the pair of oval gearwheels and clean parts with care; do not scratch
the sealing faces.
Caution: Do not remove the gearwheel position marking!
Installation:
Install the pair of oval gearwheels; note identifying marking.
Rotate gearwheels a number of times: they should not disengage.
Insert O-ring; replace cover and firmly tighten screws crosswise.
15. Recommended spare parts
1.0 Pair of oval gearwheels
2.0 NBR, FPM, or EPDM O-ring
3.0 POM, PMMA, PSU, or AL cover
Always specify the meter model when ordering spare parts.
