Releasing Pressure - Keller HTP1 Notice D'utilisation

5 Handling

5.3 Releasing pressure

Once the pressure measurements have been completed, the positive pressure in the
hand pump, the test item and in the pressure hose need to be brought into balance.
CAUTION! Risk of injury through excessive pressure!
Do not remove any connected components (test item, pressure hose, reference
gauge) if the hand pump is under pressure.
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Open the pressure relief valve before removing any of the components.
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Releasing pressure:
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Turn the pressure relief valve knob 2–3 rota-
tions counter clockwise direction and wait
until there is no longer any positive pressure.
â
Remove the test item with adapters and seals
from the pressure hose.
â
Put the hand pump away along with any
accessories which have been used.
(➝ paragraph 7: "Maintenance / cleaning,
storage and transportation")
IMPORTANT! Do not release the pressure without supervision!
When relieving the pressure, hydraulic fluid flows from the measurement device into
the reservoir. Pressure equalization in the reservoir occurs through the safety valve
in the seal.
In the event of large-volume measurement devices or if hydraulic liquid has been
refilled during pressure generation, the reservoir may fill up and overflow through the
safety valve.
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Carefully drain the pressure and note the fill level in the reservoir.
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