Cleaning and maintenance
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20901334_EN-US_PC3000 VARIO select Serie_V1.4_061022
15. Place both valve clusters
with the plate washers onto
the pump heads.
16. Place the clamping brackets
on the valve clusters and
tighten the screw fasteners
by hand.
Assembling device and housing parts
Before you put the pumping unit back into operation, all device and
housing parts that were removed must first be re-attached.
-> Example
Assembling device
and housing parts
1. Carefully press the mem-
branes centrally and flush
into the housing opening.
2. Hold the pump head pair on
the vacuum pump and
tighten the screw fasteners;
hexagon socket wrench size
5.
