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VENT VALVE INSTALLATION
The vent valve mod. 969-9833 enables undesired
pump areation during a temporary power failure (5
sec maximum) to be avoided, and enables an
automatic vent operation.
Unscrew the threaded plug.
Screw the vent valve into the pump.
Tighten the valve using a 10 mm hexagonal span-
ner.
Do not overtighten the valve as this may damage
the thread on the pump.
33
TECHNICAL INFORMATION
CAUTION
87-900-851-01(A)
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