Hoefer VP200 - Manual (Page 18)

6. Care and maintenance
All bearings are sealed and filled with non-
wearing lubricant. Under normal operating
conditions, these components require no
maintenance. Serviceable parts include the
catchpots, diaphragms, and valves. Their care is
described below.
Adjusting the gas ballast valve
When the gas ballast valve is in the open position
(Fig 2, page 7), a small amount of air enters the
system through a pinhole at the bottom of the
white fitting, which reduces the vacuum.
Open the gas ballast valve to help clear the
system of condensate, and close the valve to
increase the strength of the vacuum.
Cleaning the catchpots
Condensed vapor in the pump system collects in
the catchpots.
1
Turn the mains power off and allow the system to
reach atmospheric pressure (open the gas ballast
valve for quick pressure bleed-off).
2
Supporting the catchpot to be released, slide the
clamp holding the catchpot off of the support flange.
3
Dispose of the condensate according to local disposal
regulations.
4
Replace the catchpots and secure with the clamp.
5
If required, repeat steps 1–4 for the second catchpots.
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Important! Empty the catchpots
as required, when about half
full, to prevent condensates
from entering the pump head.
Condensates flascan damage
internal parts.