VACUUBRAND RZ 9 - Manual (Page 31)

page 31 of 49
ballast valve cap or press the gas ballast switch at the
terminal box (RE/RZ 16). The manual gas ballast valve
is open if the arrow on the gas ballast cap is pointing
towards the inlet of the pump (RE 2.5 / RZ 2.5 / RE 6 /
RZ 6) or towards the labelling ”GB” (RE 9 / RZ 9).
- Close the manual gas ballast valve by turning the cap
180°.
Operate the pump without gas ballast only in case of a
clean vacuum system or when no condensable vapors
can occur.
Shutdown & storage
Has the pump been exposed to condensate?
- Allow the pump to continue to run with an open gas
ballast valve for a few minutes before switching off.
Long-term:
- Separate the pump from the application.
- Flush the pump with dry nitrogen.
- Carry out oil change (see “Oil change”, pg. 32).
- Fill the pump completely with new oil (more than mark
”max.”!).
Attention: Before restarting the pump, drain oil to the
maximum oil level (mark ”max.”)!
- Close the manual gas ballast valve.
- Close inlet and outlet ports (e.g., with transport caps or
blind flanges).
- Store the pump under dry conditions.
- If necessary, carry out oil change and maintenance pri-
or to use if the pump has been stored for longer than
one year.
NOTICE